Which of the following statements best describes a characteristic of C4 plants? A) They are able to fix CO₂ at lower CO₂ concentrations and higher oxygen concentrations than C3 plants. B) They have higher rates of photorespiration than C3 plants. C) They use rubisco for carbon fixation, whereas C3 plants do not. D) They produce oxaloacetate, a four-carbon compound, which is then delivered to the citric acid cycle in mitochondria.

Question

Quizplus · Accepted Answer

C4 plants are adapted to fix carbon dioxide at lower concentrations and higher oxygen concentrations more efficiently than C3 plants, thanks to a specialized mechanism that concentrates CO2 around the enzyme rubisco, reducing photorespiration.

Which of the Following Statements Best Describes a Characteristic of C4