Question

In C4 plants, the first stable product of photosynthesis is:

A Phosphoenolpyruvate Correct Answer Incorrect Answer
B Oxaloacetate Correct Answer Incorrect Answer
C Phosphoglyceric acid Correct Answer Incorrect Answer
D Ribulose Correct Answer Incorrect Answer

Solution

In C4 plants, the first stable product of photosynthesis is Oxaloacetate.  C4 plants have a unique carbon fixation mechanism that allows them to minimize photorespiration and improve water-use efficiency in hot and dry environments. In these plants, carbon dioxide is first fixed into a four-carbon compound called oxaloacetate, which is then converted to malate or aspartate.

Practice Next

Relevant for Exams:

×
×