In photosynthesis, the dark reaction is called so because:
Correct answer: B. It does not require light directly
- A. It takes place only in the dark
- B. It does not require light directly
- C. It occurs during the night only
- D. It involves only dark-colored pigments
Explanation
The dark reaction is called so because it does not need light directly and uses ATP and NADPH from the light reaction to make glucose from carbon dioxide, occurring in both light and dark conditions. a) It takes place only in the dark-Wrong, because it can occur in light as well. c) It occurs during nighttime only-Wrong, because it is not limited to nighttime. d) It involves only dark-colored pigments-Wrong, because no pigments are involved in the dark reaction.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Bioenergetics
Cellular respiration explains how cells release energy from glucose through glycolysis, the link reaction, Krebs cycle and electron transport chain. It includes ATP production, substrate-level and oxidative phosphorylation, aerobic versus anaerobic respiration, and the roles of mitochondria, oxygen and fermentation in energy transfer.
Practise Bioenergetics
1,378 free Bioenergetics MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Bioenergetics questions
Which statement correctly outlines some of the main events in photosynthesis?
The water splitting step of photosynthesis is called:
How is pyruvate produced in anaerobic conditions?
What do the two peaks in the action spectrum represent?
Cytochrome c reduces which coenzyme in the ETC?
In the plants, there are 50 or more thylakoids piled upon each other to form?