Algae have cell wall made up of :

Options

A. Cellulose, hemicellulose and pectins
B. Cellulose, galactans and mannans
C. Hemicellulose, pectins and proteins
D. Pectins, cellulose and proteins

Answer

To answer the question "Algae have cell wall made up of:", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Composition of Algal Cell Walls**:
- Algae, like plants, have a cell wall that provides structure and protection. The composition of these cell walls can vary among different types of algae.

2. **Identify the Main Components**:
- The primary components of algal cell walls include polysaccharides such as cellulose, hemicellulose, and pectin. Additionally, some algae may contain glycoproteins.

3. **Specific Types of Algae**:
- Different groups of algae may have unique compositions. For example, marine green algae may have specific polysaccharides like mannan and galactans in their cell walls.

4. **Conclusion on Cell Wall Composition**:
- Based on the information, we can conclude that the cell wall of algae is primarily made up of cellulose, hemicellulose, pectin, galactans, and mannan.

5. **Final Answer**:
- Therefore, the correct answer to the question is that algae have cell walls made up of cellulose, hemicellulose, pectin, galactans, and mannan.