Standard Science Primary 5 Systems

Most stomata are found on the underside of leaves. What is the primary reason for this?

A To reduce water loss through transpiration.
B To trap insects.
C To absorb more sunlight.
D To protect the plant from rain.
Show Worked Solution

Worked Solution

Step 1: Stomata allow gas exchange but also allow water vapour to escape. Step 2: The underside of the leaf is cooler and less exposed to direct sunlight. Step 3: This helps the plant conserve water.

Correct answer: To reduce water loss through transpiration.

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

Start Free Trial — 7 Days Free