Select the wrong statements about parenchyma:

Options

A. It forms the major component within organs
B. The cells of the parenchyma are generally non-isodiametric
C. Its cell walls are thin made up of cellulose
D. The parenchyma performs various functions like photosynthesis, storage and secretion

Answer

### Step-by-Step Solution:

1. **Understanding Parenchyma**: Parenchyma is a type of simple permanent tissue in plants. It is characterized by thin-walled cells that are generally alive at maturity. These cells are packed closely together with minimal intercellular spaces.

2. **Identifying Functions of Parenchyma**: The primary functions of parenchyma include storage (of nutrients and water), photosynthesis (in green parenchyma), and providing support as ground tissue in various plant organs.

3. **Analyzing the Composition**: The cell walls of parenchyma are primarily made of cellulose, which contributes to their thin structure.

4. **Evaluating the Statements**:
- **Statement 1**: Parenchyma forms a major component within the organs. (True)
- **Statement 2**: The cells of parenchyma are generally known as isodimetric. (False)
- **Statement 3**: Parenchyma performs various functions like photosynthesis, storage, and secretions. (True)
- **Statement 4**: The cell wall of parenchyma is made up of cellulose. (True)

5. **Identifying the Wrong Statement**: The second statement is incorrect because while parenchyma cells are often similar in size, they are not strictly isodimetric. The term "isodimetric" implies that all cells have exactly the same dimensions, which is not always the case for parenchyma.

### Conclusion:
The wrong statement about parenchyma is **Statement 2**, which claims that the cells of the parenchyma are generally known as isodimetric.

---