1, 3-Diphosphoglyceric acid is ______ form of PGAL

Options

A. reduced
B. oxidised
C. dehydrated
D. hydrated

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the relationship between 1,3-diphosphoglyceric acid and phosphoglyceraldehyde (PGAL). We need to identify the form of PGAL that corresponds to 1,3-diphosphoglyceric acid.

2. **Analyzing the Options**: The options provided are:
- Reduced
- Oxidized
- Dehydrated
- Hydrated

3. **Evaluating Each Option**:
- **Reduced**: This option suggests that 1,3-diphosphoglyceric acid is a reduced form of PGAL. This is incorrect because 1,3-diphosphoglyceric acid is formed through oxidation.
- **Oxidized**: This option indicates that 1,3-diphosphoglyceric acid is the oxidized form of PGAL. This is correct, as 1,3-diphosphoglyceric acid is indeed derived from the oxidation of PGAL.
- **Dehydrated**: This option implies that 1,3-diphosphoglyceric acid is a dehydrated form of PGAL. This is incorrect because dehydration does not occur in this transformation.
- **Hydrated**: This option suggests that 1,3-diphosphoglyceric acid is a hydrated form of PGAL. This is also incorrect for the same reasons as the dehydrated option.

4. **Conclusion**: After evaluating all the options, the correct answer is that 1,3-diphosphoglyceric acid is the **oxidized** form of phosphoglyceraldehyde (PGAL).

**Final Answer**: 1,3-Diphosphoglyceric acid is the **oxidized** form of PGAL.

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