The trioses which are intermediate in respiration and photosynthesis are_______________?
Correct answer: C. Both of these
- A. Glyceraldehydes
- B. Dihydroxy acetone
- C. Both of these
- D. None of these
Explanation
Glyceraldehyde-3-phosphate and dihydroxyacetone phosphate are three-carbon intermediates found in pathways of both photosynthesis and respiration, so both listed trioses qualify. The likely mistake is choosing glyceraldehydes alone by remembering only glyceraldehyde-3-phosphate and overlooking dihydroxyacetone phosphate.
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