Standard Science Primary 5 Systems

What is the main function of the water-carrying tubes (xylem) in a plant?

A To absorb sunlight for photosynthesis.
B To transport water and mineral salts from the roots to all parts of the plant.
C To transport food from the leaves to all parts of the plant.
D To exchange gases with the surroundings.
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Worked Solution

Step 1: Recall the two main transport tubes in a plant stem. Step 2: Food-carrying tubes transport food made in the leaves. Step 3: Water-carrying tubes transport water and mineral salts absorbed by the roots upwards to the rest of the plant.

Correct answer: To transport water and mineral salts from the roots to all parts of the plant.

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