The enzymes for thet condensation of trioses during Calvin cycle is

Options

A. Hexokinases
B. Carboxydismutase
C. Aldolase
D. Oxysome

Answer

**Step-by-Step Solution:**

1. **Understanding the Calvin Cycle**: The Calvin cycle is a series of biochemical reactions that take place in the stroma of chloroplasts during photosynthesis. It is also known as the light-independent reactions or dark reactions. The primary function of the Calvin cycle is to convert carbon dioxide (CO2) into glucose.

2. **Identifying the Role of Enzymes**: Within the Calvin cycle, various enzymes facilitate different reactions. One important reaction involves the condensation of trioses, which are three-carbon sugars produced during the cycle.

3. **Analyzing the Options**: The question provides four options for the enzyme responsible for the condensation of trioses:
- **Hexokinase**: This enzyme is involved in the phosphorylation of hexoses (six-carbon sugars) to form hexose phosphates.
- **Carboxydismutase**: This enzyme is involved in the fixation of CO2 in plants.
- **Aldolase**: This enzyme catalyzes the condensation of trioses, specifically converting dihydroxyacetone phosphate (DHAP) and glyceraldehyde-3-phosphate (G3P) into fructose-1,6-bisphosphate.
- **Oxyzo**: This option seems to be a misnomer or incorrect term, as there is no widely recognized enzyme by this name related to the Calvin cycle.

4. **Identifying the Correct Answer**: Given the role of aldolase in the condensation of trioses during the Calvin cycle, the correct answer to the question is **aldolase**.

5. **Conclusion**: Therefore, the enzyme responsible for the condensation of trioses during the Calvin cycle is **aldolase**.

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