4
QuizMultiple Choice

Plant Responses

Question 4 • AISD-Biology B CR (25-26)

Sandra has a houseplant sitting on her kitchen windowsill, where it receives a lot of sunlight.What will most likely be the plant’s pattern of growth?

Answer
A
The cells on the shaded side of the plant will grow longer, causing the opposite side of the plant to grow toward the window.
B
The cells on the shaded side of the plant will shrink, causing the opposite side of the plant to grow toward the window.
C
The cells on the sunny side of the plant will grow longer, causing the shaded side of the plant to grow away from the window.
D
The cells on the sunny side of the plant will shrink, causing the shaded side of the plant to grow away from the window.

Explanation

A plant shoot responds to light by phototropism. Cells on the shaded side elongate more than cells on the sunny side, making the stem bend toward the window, where the light is strongest. Thus, the correct choice is the one describing longer cells on the shaded side and growth toward the window.

AI-written and checked against the verified answer.

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