Foundation Science Primary 5 Systems

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

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

Step 1: Plants have two types of transport tubes in their stems: water-carrying (xylem) and food-carrying (phloem). Step 2: Water is absorbed by the roots. Step 3: The water-carrying tubes transport this water and dissolved mineral salts 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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