Standard Science Primary 5 Systems

A ring of bark containing the food-carrying tubes was removed from the stem of a plant. After a week, a swelling was observed ABOVE the ring. Why?

A Water cannot reach the leaves.
B Water cannot reach the roots.
C The plant is growing a new branch.
D Food cannot reach the roots.
Show Worked Solution

Worked Solution

Step 1: Food is made in the leaves and transported downwards. Step 2: Removing the food-carrying tubes stops food from reaching the roots. Step 3: Food accumulates above the cut, causing the stem to swell.

Correct answer: Food cannot reach the roots.

Want more questions like this? Superholic Lab has 10,000+ MOE-aligned questions with full worked solutions.

Start Free Trial — 7 Days Free