(A) Cellulose is natural polymer.
(R) Cellulose is obtained from plants.

Options

A. Hydrogen bonding
B. `beta` (1 , 4) glycosidic linkage
C. Cell wall material
D. Vegetable matter

Answer

To analyze the assertion (A) and reason (R) regarding cellulose, we can break down the information step by step.

### Step 1: Understanding the Assertion (A)
- **Assertion (A)** states that "Cellulose is a natural polymer."
- A polymer is a large molecule composed of repeating structural units (monomers). In the case of cellulose, the monomer is glucose.
- Cellulose is indeed classified as a natural polymer because it is found in nature and is made up of many glucose units linked together.

### Step 2: Understanding the Reason (R)
- **Reason (R)** states that "Cellulose is obtained from plants."
- Cellulose is primarily found in the cell walls of plants, making it a critical component of plant structure.
- It is synthesized by plants through photosynthesis and is not found in animals or fungi in significant amounts.

### Step 3: Connecting Assertion and Reason
- The assertion that cellulose is a natural polymer is true, and the reason that it is obtained from plants is also true.
- The reason provides a valid explanation for the assertion because cellulose's natural polymer status is directly related to its origin in plants.

### Conclusion
Both the assertion (A) and the reason (R) are true, and the reason correctly explains the assertion. Therefore, the answer to the question is that both statements are correct.

### Final Answer
Both (A) and (R) are true, and (R) is the correct explanation of (A).

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