BIOLOGY
JAMB 2010 - Question 12
Biology 2010 JAMB Past Questions - Question 12: The movement of material in the xylem and phloem tissues of the plant are represented by the arrows labelled
Use the diagram to answer questions 12 and 13
A:
B:
C:
D:
Correct Answer
C
Explanation
The arrow labelled iV shows the flow of water containing dissolved salts from tries oil to the leaves of plants as a raw material for the synthesis of carbohydrate in the leaves during photosynthesis. The carbohydrate (glucose) is conducted away from the leaves through the phloem etc different parts of the plant. The arrow labelled S shows the diffusion of carbon (IV) oxide Into the leaf while arrow labelled II shows the diffusion of oxygen as a by-product of photosynthesis out of the leaf.
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