In Calvin cycel, G-3-P reacts with

Options

A. DHAP, E-4-P, X-5-P
B. DHAP, Fructose 1,6 Bisphosphate, Ribose-5-Phosphate
C. `CO_(2)`, RuBp, DHAP
D. DHAP, Fructose - 6 - phosphate, Sedoheptulose - 7-phosphate

Answer

### Step-by-Step Solution:

1. **Understanding the Calvin Cycle**: The Calvin cycle is a series of biochemical reactions that occur in the chloroplasts of photosynthetic organisms. It is responsible for fixing carbon dioxide and synthesizing glucose.

2. **Identifying G3P**: G3P, or Glyceraldehyde 3-phosphate, is a three-carbon sugar that is produced during the Calvin cycle. It plays a crucial role in both the synthesis of glucose and the regeneration of ribulose bisphosphate (RUBP).

3. **Function of G3P**: G3P exits the Calvin cycle and serves two primary functions:
- It contributes to the synthesis of glucose.
- It helps regenerate RUBP, which is essential for the continuation of the Calvin cycle.

4. **Reactions Involving G3P**: In the context of the Calvin cycle, G3P reacts with other molecules to facilitate the regeneration of RUBP. The key molecules that G3P interacts with include:
- **Dihydroxyacetone phosphate (DHAP)**: This molecule is involved in the reduction phase of the Calvin cycle.
- **Fructose 6-phosphate (F6P)**: This molecule is also involved in the regeneration of RUBP.
- **Sedoheptulose 7-phosphate (SH7P)**: Similar to F6P, it plays a role in RUBP regeneration.

5. **Conclusion**: Therefore, G3P primarily reacts with DHAP, F6P, and SH7P in the Calvin cycle to help regenerate RUBP, which is crucial for the cycle to continue.

### Final Answer:
In the Calvin cycle, G3P reacts with Dihydroxyacetone phosphate (DHAP), Fructose 6-phosphate (F6P), and Sedoheptulose 7-phosphate (SH7P) to regenerate RUBP.

---