Praxis 5005 Practice Test Practice Question
Which of the following is a primary function of the leaves of a vascular plan?
Correct Answer: D
Rationale: Leaves play a crucial role in photosynthesis, primarily by taking in carbon dioxide (D). This gas is essential for producing glucose, which fuels the plant's growth and energy needs.
Option A, attracting pollinators, is primarily the function of flowers, not leaves. Option B, providing structural support, is mainly the role of stems and roots, while leaves are designed for maximizing light absorption. Option C incorrectly attributes water intake to leaves; instead, roots are responsible for absorbing water from the soil. Thus, the primary function of leaves is to facilitate gas exchange, particularly carbon dioxide intake for photosynthesis.
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