Class 11 Biology · Chapter 6 · Test 3
Bioenergetics Part 3
34 MCQs This set covers cellular respiration, anaerobic respiration including alcoholic and lactic acid fermentation, and the steps of glycolysis. It also covers substrate-level phosphorylation, pyruvic acid oxidation and the Krebs cycle.
33 questions · 25 min · 33 marks
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Sample questions
The first 5 of 33. Try each one, then tap to see the answer.
Question 1
Cellular respiration breaks down glucose to release
- AUsable energy
- BLight
- COxygen
- DWater only
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Answer: A
Glucose and oxygen give CO2 and water and energy.
Question 2
Glucose is known as the respiratory
- AFuel
- BPigment
- CEnzyme
- DProduct
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Answer: A
Almost all cells use glucose as energy source.
Question 3
Glucose has more stored energy than CO2 and H2O because it has many
- AC-H bonds
- BPeptide bonds
- CIonic bonds
- DDisulphide bonds
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Answer: A
CO2 and H2O have no such bonds.
Question 4
Respiration in the absence of oxygen is called
- AAnaerobic respiration
- BAerobic respiration
- CPhotorespiration
- DBreathing
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Answer: A
It is also called fermentation.
Question 5
The exchange of CO2 and O2 between organism and environment is called
- AExternal respiration
- BCellular respiration
- CFermentation
- DGlycolysis
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Answer: A
It is also called breathing.
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