In Contrast to C₃ Plants, C₄ Plants Have Which Structure

question 60

Multiple Choice

In contrast to C₃ plants, C₄ plants have which structure that keeps the CO₂ concentration high where the Calvin cycle operates?

• A) Well-differentiated mesophyll cells and bundle sheath tissue with a waxy coating
• B) A waxy coating around the xylem
• C) Spongy mesophyll cells
• D) Stomata in the lower and upper epidermis

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