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HERE ARE 350 BIOLOGY MCQ, S OF FULL BOOK FIRST YEAR BIOLOGY PUNJAB TEXTBOOK BOARD LAHORE
The catalytic activity is restricted to a small portion known as:a) Substrate b) Coenzyme c) Active site d) All of them
2. The simplest of the animals belong to sub-kingdom:
a) Radiata b) Parazoa c) Eumetazoa d) None of them
3. Hunger pangs usually begin ____________ hours after the previous meal or in less time for some people.
a) 7- 12 b) 10-18 c) 12- 24 d) 18-38
4. Inner walls of Annular cells are:
a) Flattened b) Thick c) Thinner d) None of them
5. Non-protein part of the enzyme is:
a) Inhibitor b) Activator c) Co-factor d) Active site
6. Euglenoids are:
a) Unicellular b) Multicellular c) Both a & b d) None of them
7. Flagella in Phaeophyta is present on:
a) Epidermal cell b) Somatic cells c) Reproductive cells d) None of them
8.Raise in the level of CO :
a) Raise in the level of K ions
b) K ions kept constant
c) Halts the outward transport of K ions
d) Halts the inward transport of K ions
9. The nematodes are:
a) bilaterally symmetrical b) pseudocoelomate c) triploblastic d) All of them
10. Which of the following statements about ribosomes is correct?
a) They are structurally different from free ribosomes
b) They are enclosed in their own membrane
c) They are concentrated in the cisternal space of rough ER
d) They are attached to the cisternal surface.
11.Heart of amphibia has________chambers.
a) 1 b) 2 c) 3 d) 4
12.__________is concerned with cell secretions:
a) Ribosomes b) Mitochondria c) Golgi Apparatus d) None of them
13.In sphenopsida, the sporangia appear on the ___________of the expanded disc.
a) Upperside b) Lower side c) Under side d) Left side
14. Lock and key model was proposed in:
a) 1790 b) 1880 c) 1890 d) 1899
15._______causes coagulation of bacterial proteins.
a) Moist heat b) Dry heat c) Sterilization d) All of them
16.The algae is ______like protists.
a) Animal b) Plant c) Fungi d) None of them
17. Non-reducing sugar is:
a) Sucrose b) Glucose c) Both a & b d) None of them
18. Which RNA carries the genetic message:
a) tRNA b) rRNA c) mRNA d) siRNA
19. The severe form of food poisoning is:
a) Dyspepsia b) Anorexia c) Botulism d) None of them
20.Fibrous protein has _________structure.
a) Primary b) Secondary c) Tertiary d) Quaternary
21.Scolymastra joubini is ________like glass sponge.
a) Oval b) Barrel c) Circular d) None of them
22.Laminaria is a ___________algae.
a) Red b) Brown c) Green algae d) None of them
23. Patterns of veins in the leaf of dicot plants are:
a) Parallel veins b) Net Veins c) Circular veins d) All of them
24.________is a kind of chemical link between catabolism and anabolism.
a) ATP b) GTP c)NADPH d) CHEMICAL BOND
25. Spores of adiantum is dispersed by:
a) Water b) Insects c) Wind d) None of them
26.Inhaled amount of oxygen by humans is:
a) 12% b) 21% c) 31% d) 41%
27. Hydrogen produced by the splitting of water reduces NADP to:
a) NADP b) NAD c) FAD d)NADPH
28. Head of chlorophyll is called as:
a) Phytol b) Phyrinphytol c) Nitrophytol d) Porphyrin
29.On the basis of nutrition bacteria are divided into _______groups.
a) 1 b) 2 c) 3 d) 4
30. Which one is not a trace bio element?
a) Cu b) Mg c) Ca d) S
31.Each cell of chimpanzee contains__________chromosomes.
a) 44 b) 46 c) 48 d) None of them
32. Hirudo is commonly called as:
a) Nereis b) planarian c) leech d) Both a and b
33. Cicer arietinum is the biological name of:
a) Peanut b) Chickpea c) Potato d) Tomato
34.If division of cocci is in one plane, it produces __________arrangement
a) Diplococcus b) Streptococcus c) Staphylococcus d) Both a & b
Lorenz Oken was ________scientist.
a) Greek b) German c) English d) Persian
36. Choanoflagellates are:
a) Sessile b) Marine c) Freshwater d) All of them
37. The mood of locomotion in zooflagellates is:
a) Cilia b) Flagella c) Pseudopodia d) None of them
38.%Age composition of Nitrogen by mass of a human being is:
a) 1 b) 2 c) 3 d) 4
39. The embryo of bryophyte develops into a sporophyte which is:
a) Haploid b) Diploid c) Triploid d) None of them
40. Most vitamins function as:
a) Catalyst b) High energy compound c) Gastrovascular cavity d) Mouth
41.In human, relative %age of Thymine is:
a) 28.3 b) 19.8 c) 29.4 d) 30.9
42. Ciliates differ from other protozoans because of:
a) Being sessile b) Being motile c) Having two types of nuclei d) None of them
43. Example of a freshwater sponge is:
a) Sycon b) Leucoselenia c) Euplectcella d) Spongilla
44. The primary function of flagella is to help on:
a) Conjugation b) Reproduction c) Motility d) None of them
45. On the basis of their methods of nutrition, organisms are divided into________classes.
a) 2 b) 3 c) 4 d) 5
46. Who develops the technique of gram stain?
a) Callie Gram b) Christopher Gram c) Christain Gram d) None of them
47. Digestion in hydra and planaria takes place within its:
a) Coelom b) Alimentary canal c) Gastrovascular cavity d) Transport molecule
48.Family Rosaceae has about _______species.
a) 20 b) 200 c) 2000 d) 20000
49. Reindeer moss is a:
a) Moss b) Lichen c) Mycorrhizae d) None of them
50. The material present in the endoplasmic reticulum is separated from the cytoplasmic material
by________membranes called cisternae.
a) Spherical b) Tubular c) Cubical d) Both a & b
BIOLOGY MCQ, S, BIOLOGY BOOK AND BRANCHES
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51.Mosses inhabit_____places.
a) Dry b) Damp c) Sandy d) None of them
52. In human, relative %age of adenine is:
a) 20.9 b) 25.9 c) 30.9 d) None of them
53. Example of foliose lichen is:
a) Bacidia b) Parmelia c) Lecanor d) None of them
54. Smut fungi belong to genus:
a) Puccinia b) Ustilago c) Yeast d) None of them
55. Embedded in the tentacles of hydra are numerous stinging cells called:
a) Gastrozooid b) Cnidocytes c) Gastrocytes d) None of them
56.The condition in which land plants produce one kind of spores is:
a) Monospory b) Heterospory c) Homospory d) None of them
57. Which is not the product of Cyclic phosphorylation?
a) Oxygen b) NADPH c) ATP d) Both a & b
58. The most important plant in the family of Solanaceae is:
a) Lycopersicum esculentum b) Capsicum frutescens c) Solanum tuberosum d) All of them
59. Ribosomes are composed of:
a) DNA b) RNA c) Protein d) Both b & c
60. The structure in the mouth that prevents food from entering the nasal cavities is the:
a) Epiglottis b) Soft palate c) Tongue d) Pharynx
61. Cause of Irish potato famine is:
a) Physarum polycephalum b) Phytophthora infestans c) Both a & b d) None of them
62. Trypanosoma causes diseases:
a) Malaria b) Sleeping sickness c) Both a & b d) None of them
63.Nuclear region is visible in the __________.
a) Light microscope b) With naked eye c) Both a & b d) None of them
64. The digestive system of _______is of tubular type
a) Planarian b) Cockroach c)Hydra d) All of them
65. A number of flagella on brown algae is:
a) 1 b) 2 c) 3 d) 4
66.Lipids are __________in nature.
a) Hydrophobic b) Hydrophilic c) Both a & b d) None of them
67. Haemoglobin has haem group carrying _____
a) Mg++ b) Ca++ c) Fe++ d) None of them
68.At least_________groups of mammal-like reptiles developed mammalian characters and were 50% mammals.
a) 5 b) 10 c) 15 d) 20
69. Most of the time carbohydrates form _________structure when added in water.
a) Chain b) Ringed c) Both a & b d) None of them
70. In bacteria, the chromatic/nuclear body is present in:
a) Nucleus b) Ribosomes c) Cytoplasm d) None of them
71.Trichomes of nostoc are________and appear_________.
a) Branched & Beaded b) Unbranched & Unbeaded c) Branched & Unbeaded d) Unbranched & beaded
72.Super blue-green algae serves as complete whole food, which contain 60% ________________.
a) Carbohydrates b) Protein c) Lipids d) None of them
73. Mites and ticks belong to which class of phylum Arthropoda?
a) Crustacea b) Insecta c) Myriapoda d) Arachnida
74. Choline is:
a) Cholesterol b) Nitrogenous base c) Both a & b d) None of them
75. The feeding stage of slime mold is called as:
a) Mycelium b) Pseudopodium c) Hypae d) Plasmodium
76. Mechanism of enzyme action is called:
a) Chemical Reaction b) Catalysis c) Both a & b d) None of them
77. Irreversible inhibitors check the reaction rate by:
a) Occupying the active sites b) Destroying the globular structure c) Both a & b d) None of them
78. Glyceraldehyde has _____hydroxl group
a) 2 b) 3 c) 5 d) 7
79. Example of a freshwater annelid is:
a) Stylaria b) Nereis c) Both a & b d) None of them
80. The main achievements of Pasteur are the development of vaccines for:
a) Anthrax b) Fowl cholera c) Rabies d) All of them
81.The body of spirogyra is________
a) Unicellular b) Filamentous c) sheet-like d) None of them
82.A related group of related ORDER comprises ___________.
a) PHYLUM b) CLASS c)genus d) division
83. Solanum malengena is a botanical name of which plant:
a) Sheesham b) cotton c) potato d) brinjal
84.The cells of Dinoflagellates are often covered with shells of interlocking ____________plates impregnated
with _________.
a) Cellulose plates, Carbonates b) Pectin plates, silicates c) Cellulose plates, silicates d) None of them
85. Zea mays is the biological name of:
a) Wheat b) Corn c) Rice d) Apple
86.Arrangement of cellulose molecules are in_________manner.
a) Linear b) Random c) Crisscross d) Anti-Parallel
87.Rate of enzyme action is __________at optimum temperature.
a) Minimum b) Maximum c) Moderate d) None of them
88. Antibiotics are synthesized and secreted by:
a) Bacteria b) Actinomycetes c) Certain fungi d) All of them
89. Classification of algae into phyla is based upon:
a) Methods of nutrition b) Habitat c) Morphology d) Pigment composition
90. Loligo is commonly called as:
a) Squid b) Freshwater mussel c) Garden snail d) None of them
91. A rye plant less than one meter tall has some 14 million branch roots of a combined length of:
a) 6 Km b) 60 Km c) 600 Km d) None of them
92.The stomium occupies _________of the edge.
a) 1/4 th b) 2/4 th c) 3/4 th d) None of them
93. In hornworts, at the junction of foot and spore-producing region, there is a band of:
a) Ground tissues b) Epidermal tissues c) Meristematic tissue d) Vascular tissue
94. Which nutrient can not be able to provide energy to the body?
a) Fats b) Protein c) Carbohydrates d) None of them
95.Slime provides greater_______to bacteria.
a) Permeability b) Flexibility c) Pathogenicity d) None of them
96.________is unicellular non-motile green algae.
a) Spirogyra b) Ulva c) Chlorella d) None of them
97.Ascaris lumbricoides is a/an __________parasite in man.
a) Ectoparasite b) Skin c) Blood d) Intestine
98. Stroma is fluid in the chloroplast which surrounds:
a) Matrix b) Granum c) Thylakoids d) All of them
99. Which of the following is wrong about bryophytes?
a) Homosporous b) Non-vascular c) Sporophyte dominant d) Gametophyte dominant
100. A total number of species of Porifera is:
a) 50 b) 500 c) 5000 d) 50,000
101. Which of the following is NOT true of guard cells?
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101. Which of the following is NOT true of guard cells?
a) They are present in the epidermis of the leaf
b) They are connected with plasmodesmata with other epidermal
cells
c) They contain chloroplasts
d) They are kidney-shaped
102. Glycolysis takes place only in the:
a) Presence of Oxygen b) Absence of Oxygen c) Both a & b d) None of them
103.Kelps are the largest__________algae.
a) Red b) Brown c) Green d) None of them
104. Lycopersicum esculentum is the biological name of:
a) Potato b) Red pepper c) Tomato d) None of them
105. Most of the visible part of the lichen consists of:
a) Algae b) Fungi c) Bacteria d) All of them
106. Taking in of complex food is called:
a) Assimilation b) Ingestion c) Egestion d) Digestion
107.Cuticular transpiration is ___________% of total transpiration.
a) 1-2 b) 5-7 c) 7-9 d) 90
108. Citric acid is obtained from:
a) Amanita b) Aspergillus sp. c) Penicillium d) All of them
109. In wheat, relative %age of adenine is:
a) 29.3 b) 27.3 c) 31.3 d) 22.9
110. The gases that fill the swim bladder are:
a)co2 b) Nitrogen c) Secreted by swim bladder d) All of them
111._______come out through cell wall and originate from the basal body.
a) Pili b) Fimbriae c) Falgellla d) All of them
112. The largest group of fungi is:
a) Zygomycota b) Ascomycota c) Basidiomycota d) Deutromycota
113.______are non vascular plants.
a) Hornworts b) Liverworts c) Mosses d) Club mosses
114. Which of the following is dominant in the Cenozoic era:
a) Algae b) Fungi c) Gymnosperm d) Angiosperm
115. Which are the major producers in the aquatic ecosystem:
a) Green algae b) Diatoms c) Euglenoids d) None of them
116. The reptiles of today have been derived from dinosaurs of______period.
a) Jurassic b) Cretaceous c) Both a & b d) None of them
117. By Gram's staining technique gram-negative bacteria are stained:
a) Purple b) Blue c) Pink d) None of them
118. One of the early reptiles was:
a) Anope b) Varanope c) Amor d) None of them
119.Prokaryotic ribosomes sediments at:
a) 50 S b) 70 S c) 80 S d) None of them
120.Fresh air contains _______oxygen per liter.
a) two ml b) twenty ml c) two hundred ml d)two thousand ml
121. All seeds producing plants are called:
a) Spermatophytes b) Sporophytes c) Gametophytes d) None of them
122.Which is not an organic compound.
a) Carbohydrates b) Protein c) Water d) Lipids
123. The cell wall of epidermal cells of roots is___________permeable to water and other minerals.
a) Selectively b) Partially c) Freely d) None of them
124. In the lytic cycle of a bacteriophage, the host DNA is
a) Replicated b) Turned off by a protein coat
c) Digested into its nucleotides
d) Turned on by removal of a protein coat
125.In class Insecta, brain is formed of fused___________.
a) Body & head b) Ganglia & double nerve cord c) Ganglia & respiratory track d) None of them
126.Glycogen gives _____colour with iodine
a) Blue b) Red c) Purple (d) No
127. Pick the odd one:
a) Carbohydrates b) Water c) Protein d) Lipids
128. Saliva is secreted by _____pairs glands.
a) Two b) Three c) Four d) Five
129. An activated enzyme can also be called as:
a) Coenzyme b) Apoenzyme c) Holoenzyme d) All of them
130.500 M years ago, it was____period.
a) Permian b) Devonian c) Ordovician d) None of them
131. Lorenz Oken did his work about the cell in:
a) 1705 b) 1805 c) 1905 d) 1835
132. The protists are:
a) Unicellular b) Colonial c) Simple multicellular d) All of them
133. During aerobic respiration, glucose is oxidized to:
a) Carbon dioxide b) Water c) Energy d) All of them
134.In amphibians, the heart is_________chambaered.
a) 1 b) 2 c) 3 d) 4
135.The rate of an enzyme-catalyzed reaction:
a) Is constant under all conditions
b) Decrease as substrate concentration increase
c) Can not be measured
d) Can be reduced by inhibitors
136.The word "Skeleoris" meaning:
a) Softening b) Hardening c) Porridge d) Both a & c
137. Who determines the sequence of protein?
a) F. Masher b) F. Sanger c) F.King d) None of them
138.%Age of rRNA what is associated with ribosomes is:
a) 10-20 b) 20-40 c) 40-50 d) None of them
139. Which is not the reactant during the process of respiration?
a) Succinate b) glutamate c) Citrate d) Fumarate
140. How much percentage of water is used during the process of photosynthesis
a) 100% b) 20% c)50% d) 80%
a) 100% b) 20% c)50% d) 80%
141.___________are thick-walled , enlarged vegetative cells which accumulate and become resting cells:
a) Akinetes b) Hormogonia c) None of this d) None of them
142.Poaceae is _________of corn.
a) Class b) Order c) Family d) Kingdom
143. Glycolysis occurs in the:
a) Stroma b) Chloroplast c) Mitochondrial matrix d) Cytosol
144. Large quantities of water are carried at a speed up to ___________being recorded in tall trees.
a) 4 mh b) 8 mh c) 12 mh d) 16 mh
145. Large intestine harbours a large population of useful bacteria that synthesize some vitamins especially
Vitamin:
a) A b) D c) C d) K
146.Penicillium species are used for given_________________to some cheese.
a) Flavour b) Aroma c) Characteristics colour d) All of them
147.What about gymnosperms is wrong:
a) Produce seed b) No fruit c) Heterosporouse d) Homosporous
148. Five kingdom classification was given in:
a) 1869 b) 1969 c) 1989 d) 1998
149.__________is the largest invertebrate animal.
a) Octopus b) Giant squid c) Elephant d) Whale
150. Stentor is the example of:
a) Zooflagellates b) Foraminifera c) Ciliates d) None of them
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151.Plants can be divided into____broad categories.
a) 2 b) 4 c) 6 d) 8
152. The specific gravity of fats and oil is:
a) 0.2 b) 0.4 c) 0.6 d) 0.8
153.______% of white cells are eosinophils.
a) 59 b) 19 c) 9 d) 2
154.__________was formerly called as infectious hepatitis.
a) Hepatitis A b) Hepatitis B c) Hepatitis C d) Hepatitis E
155. The other names of nucleoid are:
a) Nuclear body b) Chromatin body c) Both a & b d) None of them
156.The citric acid cycle:
a) Takes place in mitochondria
b) Reduces two molecules of for every glucose molecule processed
c) Is the same thing as fermentation
d) Has non-connection with the respiratory chain
157.Bronchioles are made up of_________ muscles:
a) Skeletal b) Smooth c) Elastic d) All of them
158._________are triangular, tubular or of some other shape
a) Chloroplast b) Chromoplast c) Leucoplasts d) None of them
159. Chitin in the walls of fungi is more resistant to:
a) pH b) Moisture c) Temperature d) Decay
160. Example of ciliates is:
a) Radiolarians b) Euglena c) Plasmodium d) Vorticella
161.Hydrolysis of oligosaccharides yields __________monosachharides.
a) 1-5 b) 5-7 c) 2-10 d) 1-9
162.Animal species other than insects are________percent.
a) 16.9 b) 17.9 c) 19.9 d) 23.9
163.Coal was formed in ______era.
a) Cenozoic b) Mesozoic c) Palaeozoic d) None of them
164.Heartbeat involves ________distinct stages.
a) 1 b) 2 c) 3 d) 4
165. Which statement about plastids is true?
a) They are surrounded by a single membrane
b) They are the powerhouse of the cell
c) They are found in all organisms
d) They contain DNA and ribosomes
166. The diastolic pressure in normal individuals ranges between:
a) 60-70mm Hg b) 75-85 m Hg c) 75-85 mm Hg d) 70-80 mm Hg
167.Most birds have ________ air sacs.
a) 3 b) 6 c) 9 d) 13
168.The _________receives deoxygenated blood via vena cavae from the body.
a) Right atrium b)Left Atrium c) Right ventricle d) Left ventricle
169.There are ______photosystem.
a) 1 b) 2 c) 4 d) 7
170.Algae carry out___________% of all the photosynthesis on earth
a) 40-50 b) 50-60 c) 60-70 d) 70-80
171. Hormones secreting cells are:
a) Bone cells b) Gland cells c) Both a & b d) None of them
172. Many humans become ill from consuming milk and milk products because they lack:
a) Bacteria in their intestines b) Renin c) Lactase d) Hydrochloric acid
173. Lactase act upon on lactose, it produces
a) Glucose b) Fructose c) Galactose d) Both an &c
174. Zooflagelates may be:
a) Free-living b) Parasites c) Symbionts d) All of them
175. In most plants, photorespiration reduces the amount of carbon fixed into carbohydrates by:
a) 2.5% b) 5% c) 25% d) 35%
176. Phosphoric acid has the ability to develop________ with -OH group Sugar.
a) Covalent b) Ester c) Ionic d) None of them
177.Together the inorganic ions and salts make up ____________% of the
a) 0.5 b) 0.7 c) 0.9 d) None of them
178. Which statement about the nuclear envelope is not true?
a) It has pores b) It is a double membrane structure
c) Its inner membrane bears ribosomes
d) RNA and some proteins pass through it.
179. Asexual reproduction in fungi takes place by:
a) Budding b) Fragmentation c) Spores and conidia d) All of them
180. The name of young ones used in Jenner experiments was?
a) Lorens Oken b) Ling stanner c) James Phipps d) James Charles
181.Formation of constricting ring is the property of __________fungi.
a) Pleurotus ostreatus b) Arthrobotrys sp. c) Cyanobacterium d) None of them
182. Amount of DNA/nucleus in Liver cells of chicken is:
a) 1.4 picogram b) 2.4 picogram c) 1.3 picogram d) None of them
183. In cell fractionation, the separation is based upon:
a) Size of cells b) Density gradient Centirfugation c) Shape of the cells d) Shape of organelle
184.The wood of__________is used in cabinetwork and railway carriage.
a) Acacia nilotica b) Mimosa pudica c) Albizzia lebbek d) None of them
185. One of the commonest causes of food poisoning is the toxins produced by:
a) Salmonella b) Campylobacter c) Both a & b d) None of them
186. Age of amphibians is:
a) Cenozoic b) Mesozoic c) Palaeozoic d) None of them
187. Example of aerobic bacteria is:
a) Spirochete b) Pseudomonas c) E.Coli d) None of them
188.Macromolecule is_________
a) Glucose b) Amino acid c) Lipid d) Nucleotide
189.Sexual process of ciliates is because of______nuclei.
a) Small & haploid b) Small & diploid c) Large haploid d) None of them
190. Superficial fungal infections caused by certain imperfect fungi are:
a) Ringworm b) Athlete's foot c) Both a & b d) None of them
191.The annelids belong to______.
a) Diploblastic animals b) Triploblastic animals c) Monoblastic animals d) None of them
192.Thoracic lymph duct opens into_______veins:
a) Sciatic b) Subclavian c) Femoral d) None of them
193. Enzymes are very sensitive to a minor change in:
a) Water Concentration b) Product Concentration c) Substrate Concentration d) All of them
194.Family Solanaceae has_______species .
a) 20 b) 2000 c) 20000 d) None of them
195.The lenticular transpiration is________% of the total transpiration by a plant.
a) 1-2 b) 7-8 c) 90 d) 1
196.Schwann and Schleiden were_________scientists.
a) Greek b) Latin c) German d) Persian
197. Aurelia is the scientific name of:
a) Jellyfish b) sea anemone c) corals d) sponges
198. In glycolysis, Oxidative phase is also called as:
a) Preparatory phase b) Payoff phase c) Decarboxylation phase d) None of them
199.The egg cells has ________pores per nucleus.
a) 30 b) 300 c) 3000 d) 30000
200.DNA is present in:
a) Mitochondria b) Endoplasmic reticulum c) Chloroplast d) Both a & c
BIOLOGY MCQ, S, BIOLOGY BOOK AND BRANCHES
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201.Retroviruses are _______in shape.
a) Rods b) Spherical c) Cylindrical d) None of them
202. The number of known species of plant is more than:
a) 0.5 b) 1.5 c) 2.5 d) 3.5
203. Golgi apparatus was discovered in:
a) 1798 b) 1898 c) 1989 d) None of them
204._______feed on bacterial invaders or other foreign cells including cancer cells.
a) Neutrophils b) Macrophage c) Both a & b d) None of them
205. Anthoceros is found in ______areas of Pakistan.
a) Terrestrial b) Hilly c) Aquatic d) None of them
206. Pepsin can digest:
a) Lipid b) Carbohydrate c) Protein d) All of them
207.__________are made up nine microtubule triplets.
a) Centrosome b) Centrioles c) Cytoskeleton d) None of them
208.Taste less carbohydrates are:
a) Monosaccharides b) Oligosaccharides c) Polysaccharides d) All of them
209. Peroxisomes are present in:
a) Protozoa b) Yeast c) Higher Plants d) All of them
210. Mode of locomotion in Stentor is:
a) Cilia b) Flagella c) Pseudopodia d) None of them
211. The feeding stage of slime mold is a:
a) Blastostyle b) Plasmodium c) Sporozoites d) None of them
212. The other name of Bivalvia is:
a) Gastropoda b) Pelecypoda c) Cephalopoda d) None of them
a) Gastropoda b) Pelecypoda c) Cephalopoda d) None of them
213.Molluscs are________.
a) Coelomates b) Acoelomates c) Both a & b d) None of them
a) Coelomates b) Acoelomates c) Both a & b d) None of them
214. A flower is modified:
a) Root b) Shoot c) Bud d) Leaf
215. Presence of________in bryophytes reduce the loss of water by evaporation.
a) Cellulose layer b) Cuticle c) Both a & b d) None of them
216.____may lead to chronic liver disease.
a) Hepatitis A b) Hepatitis B c) Hepatitis C d) Hepatitis E
217.______is not a sub-division of tracheophytes.
a) Sphenopsida b) Bryopsida c) Pteropsida d) None of them
218. Raised fluid-filled vesicles are formed in:
a) Chickenpox b) Mumps c) Smallpox d) None of them
219._____________are self replicating organelles.
a) Vacuole b) Golgi apparatus c) Chloroplast d) All of them
220. Anodonta is commonly called:
a) Freshwater mussel b) Marine mussel c) Squid d) None of them
221. Source of Vitamin C is:
a) Capsicum annum b) Capsicum frutescens c) Both a & b d) None of them
222. The largest group of viruses is:
a) Retroviruses b) Poxviruses c) Paramyxoviruses d) None of them
223.The charge and _______of the active site is formed by amino acids.
a) Structure b) Polarity c) Shape d) Activity of the reaction
224.Lymph capillaries join to form larger and larger vessels and ultimately form_________duct۔
a) Subclavian lymph b) Sciatic lymph c) Thoracic lymph d) None of them
225. Chemically, cytosol is about _____% water.
a) 70 b) 80 c) 90 d) None of them
226.Puccinia is ___________.
a) Saprophytic fungus b) Parasitic fungus c) Symbiotic fungus d) None of them
227.In Plants, fatty acids are________
a) Straight chain b) Branched-chain c) Ringed d) Both a & c
228.Nucleus is only visible when the cell is in____________stage.
a) Dividing stage b) Non-dividing stage c) Active d) None of them
229.Antibodies are special type of:
a) Lipoprotein b) Protein c) Glycoproteins d) None of them
230. In cockroach, the food cut into small pieces with the help of:
a) Incisor b) Mandibles c) Maxilla d) None of them
231.Haemoglobin has ___________structure.
a) Primary b) Secondary c) Tertiary d) Quaternary
232.Jejunum is about________meter.
a) 3--7 b) 5.2 c) 2.4 d) None fo them
233. Seras can be sterilized by means of:
a) Sterilization b) Gamma rays c) Membrane filters d) All of them
234. Photosynthetic pigments are organized into clusters called:
a) Photosystem b) Phytosystem c) Protosystem d) None of them
235. Prions were discovered in:
a) 1783 b) 1883 c) 1983 d) 1999
236. Parietal cells secrete:
a) Mucus b) HCl c) Pepsinogen d) Chyme
237. The food of hydra is:
a) Daphnia b) Cyclops c) Both a & b d) None of them
238. Helical phages are mostly----------shaped
a) Spherical b) Rod c) Both a & b d) None of them
239._____is known as Vacca.
a) Vaccine b) Vaccination c) Cowpox d) None of them
240. In human, relative %age of Guanine is:
a) 9.9 b) 29.9 c) 19.9 d) None of them
241. The sac-like digestive system is present in:
a) Diploblastic animal b) Monoblastic animals c) Polyblastic animals d) None of them
242. The enzymes involved in viral replication are synthesized:
a) On the viral ribosomes
b,) On the interior surface of viral membrane
c) By the host cell
d) On the interior surface of viral coat
243. A marine coelenterate is:
a) Hydra b) Obelia c) Both a & b d) None of them
244.%Age of DNA in Mammalian cell is:
a) 0.05 b) 0.15 c) 0.25 d) 0.45
245. The size and the number of mitochondria varies and depends on the _________of the cell.
a) Structure b) Physiological activity c) Shape d) None of them
246.Pacemaker sends out electrical impulses to the __________.
a) Heart b) Aorta c) Aterial muscles d) All of them
247.Ribosomes exist in ___forms.
a) 1 b) 2 c) 3 d) 4
248.Bacteria range in size from about__________over a single dimension.
a) 0.1-6.00 µm b) 0.1-60.0 µm c) 0.1-600 µm d) 0.1-0.600µm
249. Polysomes are:
a) tRNA b) mRNA c) rRNA d) None of them
250. Energy during ETC, is used by thylakoid membrane to produce:
a)FADH2 b)NADH2 c) ATP d) All of them
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251. Which is responsible for the exchange of materials?
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251. Which is responsible for the exchange of materials?
a) Capillary b) Artery c) Vein d) All of them
252. In sheep, relative %age of adenine in its DNA is:
a) 23.9 b) 21.0 c) 17.1 d) 31.3
253. The nucleotides are united with one another by the help of:
a) Hydrogen bond b) Phosphodiester bond c) Ionic bond d) Covalent bond
254.Blood contains _______oxygen, when haemoglobin is 98% saturated per 100ml of blood.
a)16.6ml b)17.6ml c) 18.6 ml d) 19.6 ml
255. The function of muscles cells is:
a) Contract b) Relax c) Homeostasis d) Both a & b
256. The diameter of peroxisome is approximately:
a) 0.5 µm b) 0.15 µm c) 0.25 µm d) 0.8 µm
257. Specific heat of vaporization of water is:
a) 570 Kcal/Kg b) 574 Kcal/Kg c) 578 Kcal/Kg d) None of them
258._______is not included in the composition of primary cell wall.
a) Cellulose b) Lignin c) Hemicellulose d) All are include
259.The fusion of nuclei is called as:
a) Plasmogamy b) Karyogamy c) Heterogamy d) None of them
260. Multicellular animals are also called as:
a) Protozoa b) Metazoa c) Multicellular d) None of them
261. Photosystem I absorbs maximum light of:
a) 600 nm b) 680 nm c) 700nm d) 760 nm
262.In Cyclic Phosphorylation, Which photosystem is involved only?
a) Photosystem I b) Photosystem II c) Both a & b d) None of them
263. The word "soma" meaning
a) Splitting b) Membranes c) Body d) None of them
264. Brush-like arrangement of its conidia is a characteristic of:
a) Rhizopus b) Puccinia c) Penicillium d) None of them
265. Pick the odd one:
a) Cellulose b) Paper c) Terpenoid d) Cotton
266. One-celled animals are called:
a) Metazoa b) Protozoa c) Multicellular d) None of them
267.Protochordate is the other name of:
a) Acrania b) Craniata c) Aves d) None of them
268. Cotton is a pure form of:
a) Starch b) Glycogen c) Cellulose d) All of them
269.An atom of_________is present in the center of porphyrin ring:
a) Mg b)Fe c) ca d) Li
270.The important chemical agents used for disinfection________agents.
a) Reducing b) Oxidizing c) Both a & b d) None of them
271. Black bread mold is a typical example of:
a) Ascomycota b) Zygomycota c) Basidiomycota d) None of them
272. Mode of locomotion in annelids are:
a) Circular muscles b) Longitudinal muscles c) Feet d) Both a & b
273. There are___types of starches.
a) 1 b) 2 c) 3 d) 4
274.In earthworm, the dorsal vessel collects blood from the _______segment backwards.
a) 7 b) 11 c) 14 d) 17
275. Which system is absent in Roundworms?
a) Circulatory b) Respiratory c) Sensory d) Both a & b
276.Adenine form bond with:
a) Guanine b) Thymine c) Cytosine d) None of them
277. In the absence of oxygen, yeast cells produce:
a) Lactic acid b) Ethyl alcohol c) Maleic acid d) All of them
278._______tuberculosis is a disease of lungs in which inside of lungs is damaged.
a) Lung b) Mycobacterium c) Respiratory d) Pulmonary
279.Huge bacteria is discovered in intestine of ____________
a) Crayfish b) Red golden fish c) Brown surgeonfish d) None of them
280.The water-splitting step of photosynthesis that releases oxygen is called:
a) Anabolism b) Photolysis c) Dark reaction d) None of them
281. Hyphae of Basidiomycota are:
a) Septate b) Lengthy and dikaryotic c) Varied d) Both a & b
282.%Age of water in Bacterial cell is:
a) 50 b) 60 c) 70 d) 80
283.Right sequence of taxa's of taxonomy is _____________.
a) Phylum, family, class, order
b) Kingdom, phylum, class, order
c) Phylum, class, family, order
d) Phylum, family, order, genus
284. The word virus-derived from____word Venom.
a) Greek b) Latin c) German d) Persian
285._______%of world's fruit is lost each year due to fungal attack.
a) 10-30 b) 15-35 c) 15-50 d) 15-75
286. The recovery from anorexia nervosa may take_______years.
a) 1-2 b) 2-3 c) 2-4 d) 4-5
287. Before entering a mitochondrion, the glucose molecule is split to form two molecules of:
a) Pyruvic acid b) Glucose c) RUBP d) None of them
288.The ________tissue has special pores called lenticels.
a) Cork b) Mesophyll c) Epidermal d)All of them
289. The pressure exerted by the protoplast against the cell wall is called:
a) Plasmolysis b) Pressure c) Turgidity d) Power
290. Which is an example of class crustacea?
a) Prawn b) Crabs c) Cyclops d) All of them
291. Number of flagella in red algae is:
a) 0 b) 1 c) 2 d) 3
292.Saprobes are decomposers that obtain their food directly from____________.
a) Inorganic matter b) Dead organic matter c) Living animals d) None of them
293. First microbes were reported in:
a) 1573 b) 1677 c) 1673 d) 1663
294. Coelenterates are characterized by:
a) Monomorphism b) Dimorphism c) Polymorphism d) None of them
295. In mature prothallus, archegonia occur near_____
a) Rhizoids b) Notch c) Both a & b d) None of them
296. Arabic gum is obtained from:
a) Acacia nilotica b) A.Senegal c) Both a & b d) None of them
297. Which of the following pair of structure-function is mismatched?
a) Ribosomes;Protein synthesis
b) Nucleolus; Ribosomes production
c) Golgi; muscle contraction
d) Lysosomes; Intracellular digestion
298.The cuticle of arthropod exoskeleton is light in weight and is formed chiefly of:
a) Silica b) Chitin c) caco3 d)lipids
299.At the base of the aorta, first pair of arteries, the coronary arteries, arse and supply blood to the:
a) Legs b) Liver c) Heart d) None of them
300. How many molecules of CO are required to produce one molecule of a triose?
a) 1 b) 3 c) 4 d) 7
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301. The tertiary structure of protein is maintained by:
a) Hydrogen Bond b) Ionic Bond c) Di-sulphide bond d) All of them
302. Waxes give protection to plants from:
a) Water loss b) Abrasive damage c) Both a & b d) None of them
303. Double fertilization is a special process found in:
a) Angiosperms b) Gymnosperms c) Ferns d) None of them
304.Some spirochetes occasionally reach _________in length.
a) 500 µm b) 500 nm c) 500 mm d) 500 cm
305. Which animals do not have locomotory organs?
a) Polychaeta b) Oligochaeta c) Hirudinea d) None of them
306.The word blackbird:
a) Crow b) Raven c) Both a & b d) None of them
307. Most abundant organic compound to be found in the cell is:
a) Protein b) Carbohydrate c) Lipids d) None of them
308.Mesoderm give rise to______system
a)muscular
b)skeletal
c)Reproductive
d)All of them
309. Some bacteria are covered with a loose, soluble shield of macromolecules called:
a) Capsule b) Slime c) Mesosomes d) All of them
310. Shark liver oil is used in medicine as a source of vitamin.
a) A b)K c) D d) Both a &b
311.______of past have created vast limestone deposits.
a) Zooflagellates b) Actinopods c) Foraminifera d) Apicomplexans
312.Family Poaceae includes about_______genera in Pakistan.
a) 138 b) 148 c) 158 d) 168
313. All bryophytes share certain characteristics. These are:
a) A waxy cuticle, true leaves,and reproductive cells in protective chambers
b) Reproductive cells in protective chambers and a waxy cuticle.
c) Vascular tissues,true leaves and a waxy cuticle
d) Vascular tissues and a waxy cuticle.
314. In sponges, the fertilization takes place in:
a) Endochyme b) Ectochyme c) Mesenchyme d) None
315.Normally, at rest we inhale and exhale ________ times/min.
a) 5-10 b) 15-20 c) 25-35 d) 45-50
316. In Pakistan, there are about _____genera of family Fabaceae.
a) 42 b) 62 c) 72 d) 82
317. Which about the flowers of family Rosaceae is wrong:
a) Bisexual b) Zygomorphic c) Pergynous d) Actinomorphic
318. Which group has gametophyte highly lobed and irregular in the outline?
a) Bryopsida b) Hepaticopsida c) Anthoceropsida d) None of them
319. In animals, coordination is achieved by:
a) Nervous system b) Integumentary system c) Endocrine system d) Both a & c
320.______play important role in body's defenses against disease.
a) Immunoglobulins b) Keratin c) Fibrinogen d) All of them
321. Kelps have stem-like:
a) Blades b) Stipes c) Holdfast d) None of them
322. In lycopsida, the arrangement of leaves is:
a) Spiral b) Opposite c) Alternated) Both a & b
323. Bacteria without any flagella are called:
a) Lophtrichous b) Atrichous c) Peritrichous d) None of them
324. Algae are:
a) Unicellular b) Filamentous c) Multicellular d) All of them
325.In parasitic species of annelids, the digestive system is____________.
a) Well developed b) Poorly developed c) Highly developed d) None of them
326.Conidia are___________spores.
a) Motile b) Non-motile c) Both a & b d) None of them
327. Oral and vagainal thrush is caused by:
a) Aspergillus fumigatus b) Penicillium notatum c) Candida albicans d) None of them
328.Air sac consists of several microscopic single layered structures called:
a) Alveoli b) Bronchi c) Bronchioles d) None of them
329.The word "Athere" meaning:
a) Hardening b) Porridge c) Coexisting d) Both a & c
330. The partly digested food is stored in the:
a) Stomach b) Gizzard c) Crop d) Rectum
331. The oosphere forms the:
a) Gametophyte b) Sporophyte c) Both a & b d) None of them
332.If 'R' group of amino acid is replaced by -CH3
, the resultant product would be:
a) Glycine b) Alanine c) Valine d) None of them
333. The transportation of photosynthate or carbohydrates from mesophyll cells to phloem tissue involves:
a) Active transport b) Passive transport c) Diffusion d) All of them
334.______are mainly used in phage study.
a) T2 b) T4 c) Both a & b d) None of them
335. In germinating seedlings, the conversion of stored fatty acids to carbohydrates is done by the help of:
a) Peroxisomes b) Lysosomes c) Glyoxysomes d) Ribosomes
336. Who said,"Omnis cellula e cellula"?
a) Robert Hooke b) Lorenz Oken c) Rudolph Virchow d) Lamarck
337. The other name of Echinodermata is:
a) Segmented skin animals b) Spinny skinned animals c) Both a & b d) None of them
338. In Polychaeta, the organs of locomotion are:
a) Parapodia b) Medusae c) sycon d) None of them
339. Exposure to _______ light, which is also effective in photosynthesis has been shown to acidify the
environment of the guard cells.
a) Blue b) Red c) Green d) None of them
340.Blood flow speed in capillaries is less than _____per sec.
a) 0.1mm b) 1.0mm c) 0.1m d) 1.0m
341.Tracheophyta have_________plants.
a) Vascular b) Non-vascular c) Both a & b d) All of them
342.Under favorable conditions________germinate and form vegetative cells in bacteria.
a) Cysts b) Mesosomes c) Spores d) None of them
343.NADH in the respiratory chain is oxidized by:
a) NADP Reductase b) Cytochrome enzymes a (c) Coenzymes Q d) None of them
344.%Age of inorganic ions in Bacterial cell is:
a) 1 b) 3 c) 7 d) 9
345. Fumarate is converted to malate when:
a) Water molecule is removed
b) Water molecule is added
c) Carbon dioxide is removed
d) Carbon dioxide is added
346. The products of anaerobic respiration in the yeast are carbon dioxide and:
a) Methyl alcohol b) Ethyl alcohol c) Pyruvate d) None of them
347 How much energy is released when one pi bond of ATP is broken
a) 7300 cal b) 7300 k cal c) 7.3 cal d) 7300 KJ
348.The jelly-like substance between ectoderm and endoderm which in most cases is non-cellular is called:
a) Mesenchyme b) Mesoglea c) Mesoderm d) Both a & b
349.Haem group of Haemoglobin, a protein which transport ____________
a) Carbon dioxide b) Oxygen c) Nitrogen d) None of them
350. Which of these phyla does not belong to sub-kingdom Eumetazoa?
a) Cnidaria b) Animalia c) Parazoa d) All of them
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