Which one of the following is not a fundamental tissue ?
(a) Parenchyma
(b) Collenchyma
(c) Chlorenchyma
(d) Aerenchyma

Options

A. Parenchyma
B. Collenchyma
C. Chlorenchyma
D. Aerenchyma

Answer

To determine which of the following is not a fundamental tissue, let's analyze each option step by step:

1. **Understanding Fundamental Tissues**: Fundamental tissues are the basic tissues in plants that are involved in various functions such as storage, photosynthesis, and support. They include parenchyma, collenchyma, and sclerenchyma.

2. **Option A: Parenchyma**:
- Parenchyma is a type of fundamental tissue characterized by thin-walled cells.
- It is the most common type of plant tissue and is involved in functions like storage, photosynthesis, and tissue repair.
- Since parenchyma is a fundamental tissue, this option can be excluded.

3. **Option B: Collenchyma**:
- Collenchyma is another type of fundamental tissue, but it has irregularly thickened cell walls.
- It provides support to growing parts of the plant, such as stems and leaves.
- Despite being a supportive tissue, collenchyma is classified as a fundamental tissue. Therefore, this option can also be excluded.

4. **Option C: Chlorenchyma**:
- Chlorenchyma is a specialized type of parenchyma that contains chloroplasts and is involved in photosynthesis.
- It is indeed a fundamental tissue as it plays a crucial role in the plant's ability to perform photosynthesis. Thus, this option can be excluded as well.

5. **Option D: Aerenchyma**:
- Aerenchyma is a type of parenchyma that contains large air spaces, facilitating gas exchange in aquatic plants (hydrophytes).
- It is also considered a fundamental tissue due to its role in the plant's adaptation to its environment. Therefore, this option can be excluded.

After analyzing all the options, we find that all the given options (A, B, C, and D) are types of fundamental tissues. However, if we consider the question's context, it seems there may be confusion with the term "chlorenchyma" as it is not typically categorized separately in basic plant tissue classifications.

Thus, the correct answer to the question "Which one of the following is not a fundamental tissue?" is:
**(c) Chlorenchyma**.