ABSORPTION SPECTRUM| ACTION SPECTRUM| BIOENERGETICS
ELECTRON TRANSPORT CHAIN| ENERGY BUDGET KREBS CYCLE
chapter 11 biology bioenergetics marks:30 Time;1H
THE OPTION THAT IS NOT TRUE ABOUT RESPIRATIONa) Protons return through the membrane by way of a channel protein
b) Proton is pumped across a membrane
c)Proton pumping is associated with the respiratory chain
d)Has no connection with the respiratory chain
Glycolysis is the breakdown of
a) Fructose b) Glucose c) Lactose d) Maltose
IN THE ABSENCE OF MOLECULAR OXYGEN YEAST PRODUCE COMPOUND NAMED
a) Acetyl CoA b) Ethyl alcohol c) Lactate d) Pyruvate
Carbon fixation refers to the initial incorporation of
a) Carbon b) Oxygen c) CO2 d) Hydrogen
The citric acid cycle
a) Takes place in the mitochondrion
b) Produces two molecules of NAD+ for every glucose molecule processed
c) It is same as fermentation
d) Has no connection with the respiratory chain
Which statement about oxidative phosphorylation is not true
a) Its functions can be served equally well by fermentation
b) In eukaryotes, it takes place in mitochondria
c) It is brought about by the chemiosmotic mechanism
d) It is the formation of ATP during the operation of the respiratory chain
PRIOR TO ENTERING THE citric acid cycle, it is decarboxylated, oxidized and combined with coenzyme A forming acetyl CoA, carbon dioxide and one molecule of
a) NADH b) FADH2 c) ATP d) ADP
In the first step of citric acid cycle, acetyl CoA reacts with oxaloacetate to form a) Pyruvate b) Citrate c) NADH d) ATP
Magnesium is an important nutrient ion in green plants as it is an essential component of
a) Cell sap b) Protein c) Chlorophyll d) Glucose
How many molecules of ATP production takes place during the Krebs cycle per glucose molecule is
a)2 b)8 c)30 d)38
SHORT QUESTIONS: each question carry 2 marks (8🗶2) =16
1 SUMMARISE the role of water in photosynthesis.
2 List four features of the leaf which shows that it is capable of photosynthesis effectively
.3. what are TW Engelman and Melvin Calvin famous for?
4.what is the difference between an action spectrum and absorption spectrum?
5.when and why is there no net exchange of gases between the leaves and atmosphere?
6.what is the production of ATP during glycolysis.
7 how is the vitamin A linked with eating of carrot?
8 how does absorption spectrum chlorophyll A differ from that of chlorophyll B
LONG QUESTION about Bioenergetics
COMPARE PHOTOSYNTHESIS WITH RESPIRATION IN PLANTS (4)
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