Question
The diagram shows some of the metabolic processes taking place in a plant cell.
(a) (i) Identify the process Y and state the name of the organelle where it takes place in a plant cell. [1]
Process Y:
Name of the organelle:
(ii) Identify the molecule Z. [1]
(b) State the type of reaction which converts excess monosaccharides to polysaccharides. [1]
(c) The process X uses oxygen and produces ATP. Identify the process X. [1]
(d) Outline the uses of ATP in plant cells. [2]
(e) With reference to the diagram, identify one example of catabolism. [1]
▶️Answer/Explanation
Ans:
a i process Y: photosynthesis organelle: chloroplast Identify Both needed
a ii glycerol /glycerin Identify
b condensation/dehydration/synthesis/anabolic/anabolism State
c aerobic respiration Identify
d
a. used as an energy source
b. supplies/releases energy for biochemical reactions
c. photosynthesis/active transport/other verifiable example of reaction or process Outline
e
a. (letter X) breakdown of monosaccharides/respiration
b. (letter Y) hydrolysis/photolysis in photosynthesis/oxidation of water Identify Answer must come from the diagram