Question

The total carbon dioxide fixation done by the C4 plants is _________

• A. 3%
• B. 13%
• C. 23%
• D. 33%

Answer 1

Answer:

C. 23%

• They are more efficient than C3 plants in the carbon dioxide fixation in the atmosphere.

• They usually grow in higher temperature regions where the activity of the enzyme RuBisCO is high.