Light energy is converted into chemical energy through the formation of:
Correct answer: B. ATP an NADPH2
- A. NADPH
- B. ATP an NADPH2
- C. ADP
- D. RuBP
Explanation
During the light-dependent reactions of photosynthesis, light energy is captured and converted into chemical energy in the form of ATP and NADPH. These molecules are essential for the subsequent light-independent reactions (Calvin cycle), where they drive the synthesis of glucose. Option B is correct because it includes both ATP and NADPH, which are the products of the light-dependent reactions. Option A is incorrect because it only mentions NADPH, ignoring the role of ATP. Option C is incorrect because ADP is a precursor to ATP and not a final product of the light-dependent reactions. Option D is incorrect because RuBP is not involved in the light-dependent reactions but rather in the Calvin cycle, where it acts as a carbon dioxide acceptor.
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
The oxidation of which of the following will produce FADH₂?
The wavelengths of light least absorbed by carotenes are
The reaction that occurs in the thylakoid interior space:
Stroma is the ground matrix of:
At which wavelength of light is photosynthesis maximum?
The source of protons within the chloroplasts is