Standard Science Primary 5 Systems

Alexa coated the underside of all leaves of a plant with a layer of oil. What would likely happen to the plant after some time?

A It will absorb more water.
B It will wilt and die.
C It will produce more flowers.
D It will grow faster.
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Worked Solution

Step 1: Stomata are tiny openings found mostly on the underside of leaves. Step 2: They are responsible for gaseous exchange (CO2/O2) and transpiration. Step 3: Oil blocks these openings, preventing the plant from 'breathing' and making food. Step 4: The plant will eventually die.

Correct answer: It will wilt and die.

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