Question

In the light-independent reaction of photosynthesis, the carbon in carbon dioxide becomes carbon in triose phosphate. Describe how. (5)

a) Carbon dioxide directly transforms into triose phosphate.
b) Carbon dioxide is converted to glucose first, and then to triose phosphate.
c) Carbon dioxide is incorporated into a 3-carbon compound during the Calvin cycle.
d) Carbon dioxide is converted into oxygen, and then oxygen turns into triose phosphate.

Answer 1

The carbon in carbon dioxide is converted to carbon in triose phosphate through the light-independent reactions of photosynthesis, also known as the Calvin cycle.

Step-by-step explanation:

The carbon in carbon dioxide becomes carbon in triose phosphate through the light-independent reactions of photosynthesis, also known as the Calvin cycle. During this process, an enzyme called RuBisCO catalyzes a reaction between carbon dioxide and a compound called RuBP. After several cycles, a three-carbon molecule called G3P is produced. Some G3P molecules leave the cycle to become part of carbohydrate molecules, while the remaining G3P molecules are used to regenerate RuBP for more reactions with carbon dioxide.