Read the following statements and select the correct option.
Statement 1 : All biomolecules have a turn over.
Statement 2 : One type of biomolecule changes into some other type of biomolecule.

Options

A. Both statements 1 and 2 are correct.
B. Statement 1 is correct but statement 2 is incorrect.
C. Statement 1 is incorrect but statement 2 is correct.
D. Both statements 1 and 2 are incorrect.

Answer

To solve the question regarding the two statements about biomolecules, let's analyze each statement step by step.

### Step 1: Understand Statement 1
**Statement 1:** "All biomolecules have a turnover."

- **Explanation:** The term "turnover" refers to the rate at which substrate molecules are converted into products by enzymes. This means that biomolecules are constantly being broken down and rebuilt in the body. For example, carbohydrates are metabolized to produce energy, and proteins are broken down into amino acids. This process is essential for maintaining cellular functions and overall metabolism.

### Step 2: Understand Statement 2
**Statement 2:** "One type of biomolecule changes into some other type of biomolecule."

- **Explanation:** This statement indicates that biomolecules can be interconverted. For instance, carbohydrates can be converted into energy (ATP), lipids can be broken down into fatty acids and glycerol, and proteins can be converted into amino acids. This transformation is facilitated by various enzymes and is a part of metabolic processes such as catabolism (breaking down) and anabolism (building up).

### Step 3: Evaluate the Statements
- Both statements are true based on the explanations provided.
- Statement 1 is correct because all biomolecules undergo turnover as they are metabolized.
- Statement 2 is also correct because biomolecules can change from one type to another through metabolic processes.

### Conclusion
Given that both statements are correct, the correct option is:
- **Both statements 1 and 2 are correct.**

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