Welcome to the Quiz!
This quiz contains 13 questions from a mix of 1 subtopics.
What happens to electrons in pigments when they absorb light energy?
they are oxidised
they are excited
they are lost
they are reduced
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What is the process of splitting water into electrons, protons, and oxygen called?
chemiosmosis
photolysis
photophosphorylation
photoionisation
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What is the movement of protons through ATP synthase called?
photoionisation
photolysis
photophosphorylation
chemiosmosis
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What is the term for the production of ATP using the energy from the movement of protons through ATP synthase?
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Describe the key stages of the light-dependent reaction.
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Which of the following is NOT a key stage in non-cyclic photophosphorylation?
electron transfer along the electron transport chain
reduction of carbon dioxide
absorption of light energy by pigments
photolysis of water
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Where do the electrons from the photolysis of water go?
they replace electrons lost from PSII
they are used to produce ATP
they oxidise NADP
they replace electrons lost from PSI
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What is the by-product of non-cyclic photophosphorylation?
carbon dioxide
water
oxygen
glucose
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Where are protons actively pumped across the thylakoid membrane into during non-cyclic photophosphorylation?
matrix
thylakoid space
stroma
intermembrane space
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Which photosystem is involved in cyclic photophosphorylation?
photosystem I (PSI) only
photosystem II (PSII) only
both PSI and PSII
neither PSI nor PSII
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What happens to electrons in cyclic photophosphorylation after they are passed along the electron transport chain?
they are used to produce oxygen
they are returned to PSI
they are lost from the system
they reduce NADP
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Which of the following is produced in cyclic photophosphorylation?
ATP
oxygen
reduced NADP
carbon dioxide
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What is the process by which ATP is formed using light energy?
photolysis
photophosphorylation
photoionisation
chemiosmosis
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