Assume that you have an illuminated suspension of Chlorella cells carrying out p

Question

Assume that you have an illuminated suspension of Chlorella cells carrying out photosynthesis in the presence of 0.1% carbon dioxide and 20% oxygen. What will be the short-term effects of the following changes in conditions on the levels of 3-phosphoglycerate (PGA) and ribulose-1,5-bisphosphate (RuBP)? Carbon dioxide concentration is suddenly reduced 1000-fold. PGA down, RuBP up PGA up, RuBP down PGA up, RuBP unchanged PGA unchanged, RuBP up Light is restricted to green wavelengths (510-550 nm) PGA down, RuBP up PGA up, RuBP down PGA up, RuBP unchanged PGA unchanged, RuBP up

Explanation / Answer

ANSWER:

1) carbon dioxide concentration is suddenly reduced 1000-fold is PGA down,RUBP up

2) light is restricted to green wavelengths (510-550 nm) PGA up,RUBP down

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