1. The following diagram shows some of the reactions that take place inside a palisade mesophyll cell.
i. Identify substances A, B and C (3M)
A
B
C
ii. Name precisely the process that produces reduced NADP (1M)
iii. Name the type of the reaction that takes place to produce starch from hexose sugars and name the type of bonds formed. (2M)
Reaction
Bond
2. The optimum pH for the activity of rubisco is pH 8 . Explain why the illumination of chloroplast leads to optimum pH conditions for rubisco. (4m)
3. An experiment was carried out into the effect of light of different colours on photosynthesis.
i. Explain the results for the leaf discs illuminated by blue light.( 3m)
ii. Explain why the indicator in the control went yellow. .( 3m)
4. Write a balanced equation that summarises photolysis. (1m)
5. State precisely the location of photosynthetic pigments within a chloroplast. (1m)