Which of the following describes conditions in a photosynthesizing cell, exposed to high light intensity and low carbon dioxide concentration?
Correct answer: A. Option A
- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation
In a photosynthesizing cell exposed to high light intensity and low carbon dioxide concentration, the rate of photosynthesis may be limited by the availability of carbon dioxide. The concentration of CO2 acceptor (RuBP) may increase as the available CO2 is used up in the Calvin cycle. The concentration of ATP may increase as the light-dependent reactions continue to produce ATP in response to high light intensity. However, an increase in ATP concentration alone is unlikely to have a significant effect on the rate of photosynthesis. The concentration of G3P (PGA) may decrease as the available carbon dioxide is used up in the Calvin cycle, leading to a decrease in the rate of carbon fixation.
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
High concentration of NADH inhibits:
Both NADH and FADH2 are formed during:
Which statement is not true about the non-cyclic electron pathway?
Which of the following is a molecule formed in a metabolic pathway by the equal splitting of a phosphorylated hexose into two halves?
What is the function of molecular oxygen in cellular respiration?
Photophosphorylation is a synthesis of: