In which the following column I is incorrectly matched with column II ?

Options

A.
B.
C.
D.

Answer

To solve the question regarding the incorrect matching of organisms with their cell wall composition, we will analyze each option step by step.

### Step-by-Step Solution:

1. **Identify the Organisms and Their Cell Wall Composition:**
- **Plants:** The cell wall is primarily composed of **cellulose** and **hemicellulose**.
- **Algae:** The cell wall is mainly made up of **cellulose** (similar to plants) and may also contain **galactans** and other polysaccharides.
- **Bacteria:** The cell wall is composed of **peptidoglycan**, which is distinct from cellulose.
- **Fungi:** The cell wall is made of **chitin**, which is different from the compositions found in plants and algae.

2. **Match Each Organism with Its Cell Wall Composition:**
- **Option 1:** Plants - Cellulose + Hemicellulose (Correct)
- **Option 2:** Algae - Cellulose + Galactans (Correct)
- **Option 3:** Bacteria - Cellulose + Keratin (Incorrect)
- **Option 4:** Fungi - Chitin (Correct)

3. **Identify the Incorrect Match:**
- Upon reviewing the options, **Option 3** is the incorrect match because bacteria do not have cellulose or keratin in their cell walls; instead, they have peptidoglycan.

### Conclusion:
The answer to the question is **Option 3: Bacteria have cellulose + keratin**, which is incorrectly matched.

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