Advanced Science Primary 5 Systems

A plant was placed in red-colored water for two hours. When the stem was cut crosswise, which part appeared red and what is its function?

A The entire stem; to transport minerals.
B The inner tubes; to transport water.
C The leaves; to perform photosynthesis.
D The outer layer; to transport food.
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Worked Solution

Step 1: Red water represents the transport of water and mineral salts. Step [2-9]: In a plant, water is transported by the xylem (water-carrying tubes). Step [2-9]: Xylem tubes are located in the inner part of the stem.

Correct answer: The inner tubes; to transport water.

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