The cell wall of which of these is not made up of cellulose

Options

A. bacteria
B. Hydrilla
C. mango tree
D. lactus

Explanation

To answer the question "The cell wall of which of these is not made up of cellulose?", we can follow these steps:

### Step 1: Understand the Composition of Cell Walls
- Cell walls are protective outer layers found in certain cells, primarily in plants, fungi, and bacteria.
- In plants, the cell wall is primarily made of cellulose, which provides structural support.

### Step 2: Analyze the Given Options
- The options provided are:
1. Bacteria
2. Hydrilla (an aquatic plant)
3. Mango tree (a flowering plant)
4. Cactus (a succulent plant)

### Step 3: Identify the Cell Wall Composition of Each Option
- **Bacteria**: The cell wall of bacteria is made up of peptidoglycan, not cellulose.
- **Hydrilla**: As a plant, its cell wall is made of cellulose.
- **Mango Tree**: As a plant, its cell wall is made of cellulose.
- **Cactus**: As a plant, its cell wall is made of cellulose.

### Step 4: Conclusion
- Among the options, the only one whose cell wall is not made of cellulose is **Bacteria**. Therefore, the correct answer is option A (Bacteria).

### Final Answer
The cell wall of **Bacteria** is not made up of cellulose.

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