P' protein refers to

Options

A. phloem protein
B. plasma protien
C. platelet protein
D. primary protein

Answer

To answer the question "P' protein refers to," we need to identify which protein is classified as a storage protein from the given options. Let's analyze each option step by step.

### Step-by-Step Solution:

1. **Identify the Options**: The options given are:
- A) Keratin
- B) Collagen
- C) Hemoglobin
- D) Gluten

2. **Analyze Option A: Keratin**:
- Keratin is primarily a structural protein. It is found in hair, nails, and the outer layer of skin. It does not serve as a storage protein.
- **Conclusion**: Keratin is not a storage protein.

3. **Analyze Option B: Collagen**:
- Collagen is a structural protein that provides support and strength to various tissues in the body, including skin, bones, and cartilage. It is not used for storage.
- **Conclusion**: Collagen is not a storage protein.

4. **Analyze Option C: Hemoglobin**:
- Hemoglobin is a protein found in red blood cells that is responsible for transporting oxygen throughout the body. It is involved in transport, not storage.
- **Conclusion**: Hemoglobin is not a storage protein.

5. **Analyze Option D: Gluten**:
- Gluten is a storage protein found in certain grains, particularly those in the grass family, such as wheat. It serves as a source of amino acids for the plant and is classified as a storage protein.
- **Conclusion**: Gluten is a storage protein.

6. **Final Answer**:
- Based on the analysis, the protein that refers to a storage protein is **D) Gluten**.