5.6.8 Uses of Triose Phosphate

Question 1

What is used to reduce glycerate-3-phosphate to triose phosphate (phosphorylated 3C sugar)?

Answer 1

Energy from ATP and hydrogen from reduced NADP (products of LDR)

Question 2

What is one sixth of the triose phosphate used to produce?

Answer 2

Useful organic molecules needed by the plant:
- TP can condense to become hexose phosphates (6C) - which can be used to produce starch, sucrose, or cellulose
- TP can be converted to glycerol while glycerate-3-phosphate can be converted to fatty acids. These molcules join together to form lipids for cell membranes
- Triose phosphates can be used in the production of amino acids for protein synthesis

Question 3

What can five sixths of the triose phosphate molecules be used for?

Answer 3

To regenerate ribulose biphosphate (RuBP). This process requires ATP