Assertion : Plasma membrane is a permeable membrane.
Reason : Both solute and solvent can pass through semipermeable membrane.

Options

A. If both Assertion and Reason are true and Reason is correct explanation of Assertions.
B. If both Assertion and Reason are true but Reason is not correct explanation of Assertion.
C. If Assertion is true but Reason is false.
D. If both Assertion and Reason are false.

Answer

To analyze the given assertion and reason, we can break down the statements step by step.

### Step 1: Understand the Assertion
- **Assertion**: "Plasma membrane is a permeable membrane."
- The term "permeable" generally means that a membrane allows all substances to pass through it freely. However, this is not accurate for the plasma membrane.

### Step 2: Clarify the Nature of the Plasma Membrane
- The plasma membrane is actually **selectively permeable**. This means it allows certain molecules to pass through while restricting others. For example, small nonpolar molecules can easily pass through, while larger or polar molecules cannot.

### Step 3: Understand the Reason
- **Reason**: "Both solute and solvent can pass through a semipermeable membrane."
- A semipermeable membrane allows only certain substances to pass through. Typically, it allows solvent molecules (like water) to pass while restricting solute molecules (like salts or sugars).

### Step 4: Evaluate the Truth of Each Statement
- The assertion that the plasma membrane is a permeable membrane is **false** because it is selectively permeable.
- The reason that both solute and solvent can pass through a semipermeable membrane is also **false** because only solvent can pass through, not solute.

### Step 5: Conclusion
- Since both the assertion and the reason are false, the correct conclusion is that both statements are incorrect.

### Final Answer
- Both assertion and reason are false.

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