Compared to C₃ Plants, C₄ Plants

question 7

Multiple Choice

Compared to C₃ plants, C₄ plants

• A) can continue to fix CO₂ even at relatively low CO₂ concentrations and high oxygen concentrations.
• B) have higher rates of photorespiration.
• C) do not use rubisco for carbon fixation.
• D) grow better under cool, moist conditions.
• E) make a four-carbon compound, oxaloacetate, which is then delivered to the citric acid cycle in mitochondria.

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