SAMPLE PAPER BIOLOGY CLASS 1OTH CHAPTER 1 MATRIC

PAPER BIOLOGY CHAPTER FIRST (GASEOUS EXCHANGE) 10THCLASS MARKS:30 TIME:45Min

Concentration of more CO2 production during photosynthesis is the result of	Less photosynthesis during day time	More photosynthesis during night time	More respiration during night time	More respiration during day time
The air goes from pharynx to	Glottis	Trachea	Larynx	Epiglottis
Number of fibrous bands stretched across the larynx	Two	Three	Four	One pair
Length of the wind pipe in human is	12inch	25cm	12cm	25inch
A sac- like structure lined by a single layer of epithelium	Capillaries	Pericardium	Alveoli	Bronchioles
Pressure on the lungs is increased as a result of------------when area of thoracic cavity is ----------------	Expiration Increased	Inhalation Increased	Exhalation Decreased	Inspiration Decreased
The movements associated with gaseous exchange are-----------	Bio chemical	Mechanical	Chemical	external
What part of the blood transport oxygen from lungs to the cells of the body	Cytoplasm of blood cells	WBC	Hemoglobin of RBC	Blood capillaries
Shortness of breath, coughing and weight loss are symbols of-----	Asthma	Bronchitis	Lungs cancer	Emphysema
Poor oxygenation of blood leads to	Pneumonia	Change of skin color	Chest tightness	asthma

SHORT QUESTIONS:

(1) What is the role of the WHO in preventing smoking?

(2) write the names any eight diseases due to smoking?

(3) define passive and acting smoking?

(4) what is the result of passive smoking in passive smokers?

(5) differentiate between breathing and cellular respiration?

(6) trace the path of air from the nasal cavity to the alveoli. \

(7) what is the diaphragm. discuss its in breathing?

(8) compare the symptoms of asthma and bronchitis.

(9) give a comparison between inspired and expired air.

(10) what is trachea what is its role in breathing?

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