Exemplar exam questions – Chapter 8, Cell respiration and ...
Cambridge Biology for the IB Diploma
Exemplar exam questions ? Chapter 8, Cell respiration and photosynthesis
Multiple choice questions
One mark is given for each correct answer.
1 Which of these accumulates in the intermembrane space of a mitochondrion during electron transport?
A oxygen B electrons C hydrogen ions (protons) D ATP
Answer is C.
2 The action spectrum and absorption spectrum of photosynthetic pigments are similar because:
A the amount of energy absorbed by the pigments is the activation energy needed for photosynthesis.
B wavelengths of light absorbed by the pigments are the ones used in photosynthesis. C photosynthetic pigments have the same requirements as enzymes used in photosynthesis. D photosynthesis occurs when the whole spectrum is absorbed.
Answer is B.
3 What are required to convert carbon dioxide into organic molecules during photosynthesis?
A light and hydrogen from photolysis B light and oxygen from photolysis C ATP and oxygen from photolysis D ATP and hydrogen from photolysis
Answer is D.
4 Which of these molecules is produced during glycolysis?
A glycogen B glucose C carbon dioxide D ATP
Answer is D.
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Cambridge Biology for the IB Diploma
5 The light-dependent reactions of photosynthesis are essential to:
A convert ATP to ADP B fix carbon C split water molecules D convert pyruvate into acetyl CoA
Answer is C.
6 The products of aerobic respiration in a mammalian cell are:
A water, ATP and oxygen B water, ATP and carbon dioxide C lactate and ATP D ethanol and ATP
Answer is B.
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