Parenchyma cells are concerned with

Options

A. Secretion
B. Support
C. Carry oxygen
D. Storage of surplus food

Answer

### Step-by-Step Solution:

1. **Understanding Parenchyma Cells**:
- Parenchyma cells are a type of plant tissue that are primarily involved in various functions within the plant.

2. **Functions of Parenchyma Cells**:
- The main function of parenchyma cells is to store assimilated food. They act as a food storage tissue in plants.
- They are metabolically active, which means they participate in various biochemical processes.
- Parenchyma cells also facilitate gaseous exchange due to their intercellular spaces.

3. **Location in Plants**:
- Parenchyma cells make up the bulk of various plant parts, including leaves, flowers, and the inner parts of stems and roots.

4. **Additional Functions**:
- Besides storage, parenchyma cells are involved in photosynthesis (especially in leaf parenchyma), gaseous exchange, and sap secretion.

5. **Evaluating the Options**:
- The question provides several functions: secretion, support, carrying oxygen, and storage of surplus food.
- Secretion is primarily associated with epithelial tissues, not parenchyma.
- Carrying oxygen is not a primary function of parenchyma cells.
- Support is also not a main function of parenchyma; it is more associated with collenchyma and sclerenchyma tissues.
- The correct function associated with parenchyma cells is the storage of surplus food.

6. **Conclusion**:
- Therefore, the correct answer is that parenchyma cells are mainly concerned with the storage of surplus food.

### Final Answer:
Parenchyma cells are primarily concerned with the storage of surplus food.

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