Consider the following statements regarding starch and sucrose synthesis during day time and select

Question

Consider the following statements regarding starch and sucrose synthesis during day time and select the correct ones.\ (i) Triose phosphate is confined to chloroplast and is utilised for the synthesis of starch only.\ (ii) Triose phosphate is translocated to cytosol from chloroplast.\ (iii) Triose phosphate is utilised for the synthesis of both starch and sucrose.\ (iv) Triose phosphate is translocated from cytosol to chloroplast.\

Professor PC Thomas Classes · Answer

(b) : Glyceraldehyde-3-phosphate (G3P) or 3-phosphoglyceraldehyde (PGAL), also known as triose phosphate, is a chemical compound that occurs as an intermediate in several central metabolic pathways of all organisms. It is an intermediate in photosynthesis. A part of triose phosphate is translocated to cytosol from chloroplast and is utilised for the synthesis of glucose, sucrose, starch, etc.