C_4 plants are photosynthetically more efficient than C_3 plants because: - Biology MCQ Biology | ExamTest.live

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C_{4} plants are photosynthetically more efficient than C_{3} plants because:

A $They have more chloroplasts$
B $The CO_{2} compensation point is more$
C $CO_{2} generated during photorespiration is recycled through PEP carboxylase$
D $The CO_{2} efflux is not prevented$

Solution & Step-by-step Explanation

C_{4} plants have Kranz anatomy, concentrating chloroplasts in bundle sheath cells and utilizing a mechanism to avoid photorespiration, making them more efficient at high light and temperature.

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C_{4} plants are photosynthetically more efficient than C_{3} plants because:

They have more chloroplasts

The CO_{2} compensation point is more

CO_{2} generated during photorespiration is recycled through PEP carboxylase

The CO_{2} efflux is not prevented

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