Biology · Plant Physiology
Sucrose-phosphate synthase (SPS) is a key enzyme in the biosynthesis of sucrose in plants. Following are certain statements regarding SPS: A. Uridine-diphosphate glucose and fructose-6-phosphate are the substrates for SPS. B. SPS directly converts its substrate into sucrose. C. Phosphorylation activates while dephosphorylation inactivates SPS. D. SPS converts its substrate into sucrose-6-phosphate which is then converted to sucrose by the action of sucrose-phosphate phosphatase. E. Glucose 6-phosphate activates while Pi inactivates SPS. Which one of the following options represents the combination of all correct statements?
- 1A, D and E✓
- 2B, C and D
- 3A, B and E
- 4A, C and D
Correct answer
A, D and E
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