Which one of the following is found both in the cells of a mango plant and a monkey.

Options

A. Chloroplast
B. Centrioles
C. Cell wall
D. Cell membrane

Answer

To determine which structure is found in both the cells of a mango plant and a monkey, we will analyze the given options: chloroplast, centriole, cell wall, and cell membrane.

### Step-by-Step Solution:

1. **Identify the Structures**:
- We have four options to consider: chloroplast, centriole, cell wall, and cell membrane.

2. **Analyze Chloroplast**:
- Chloroplasts are organelles responsible for photosynthesis, which is a process that occurs in plant cells.
- Since monkeys (and animals in general) do not perform photosynthesis, chloroplasts are absent in their cells.
- **Conclusion**: Chloroplast is not found in both cells.

3. **Analyze Centriole**:
- Centrioles are structures involved in cell division and are found in animal cells. They help in the formation of cilia and flagella.
- Plant cells do not have centrioles as they do not form cilia.
- **Conclusion**: Centrioles are not found in both cells.

4. **Analyze Cell Wall**:
- The cell wall is a rigid outer layer that provides structure and protection to plant cells.
- Animal cells, including those of monkeys, do not have a cell wall; they only have a cell membrane.
- **Conclusion**: Cell wall is not found in both cells.

5. **Analyze Cell Membrane**:
- The cell membrane is a thin, flexible barrier that surrounds all cells, both plant and animal.
- It is responsible for regulating what enters and exits the cell and is present in both plant cells (like those of the mango plant) and animal cells (like those of the monkey).
- **Conclusion**: Cell membrane is found in both cells.

6. **Final Answer**:
- The structure that is found in both the cells of a mango plant and a monkey is the **cell membrane**.