Standard Science Primary 5 Systems

A plant's food-carrying tubes (phloem) were removed from a section of the stem. After a week, a swelling was observed above the removed section. This is because __________.

A food made by leaves could not be transported to the roots
B minerals could not reach the flowers
C the plant could not absorb sunlight
D water could not reach the leaves
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Worked Solution

Step 1: Phloem carries food from leaves to other parts. Step 2: If removed, food accumulates above the cut. Step 3: This accumulation causes the stem to swell.

Correct answer: food made by leaves could not be transported to the roots

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