Practice question
Question
Following are certain statements regarding the interconversion of starch and sucrose at the onset of photosynthesis in plants. A. Triose phosphates are accumulated in the chloroplast and subsequently transported to cytosol. B. Inorganic phosphate (Pi) is transported to chloroplast from cytosol. C. Triose phosphate activates while Pi inhibits the phosphofructokinase-2 enzyme in the cytosol. D. Removal of Pi from cytosol activates sucrose-phosphate synthase enzyme. Which of the above statements are true ? Choose the correct answer from the options given below :
Explanation
Mechanistically, enzyme catalysis and lipid structure involves substrate affinity, transition state stabilization and phospholipid composition govern function. This validates A, B and D only because it reflects catalytic efficiency and membrane organization, a pattern repeatedly demonstrated in biochemistry research.
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