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

**Step-by-Step Solution:**

1. **Understanding Algal Cell Walls**: Algae are a diverse group of photosynthetic organisms, and their cell walls have a unique composition compared to other organisms like plants and bacteria.

2. **Identifying Components of Cell Walls**: The primary components of algal cell walls include polysaccharides and glycoproteins. Common polysaccharides found in algal cell walls are cellulose, hemicellulose, and pectin.

3. **Analyzing the Options**:
- Option 1: Cellulose, hemicellulose, and pectins.
- Option 2: Cellulose, galactans, and mannans.
- Option 3: Hemicellulose, pectins, and proteins.
- Option 4: Pectins, cellulose, and proteins.

4. **Evaluating Each Option**:
- **Option 1** is correct as it includes cellulose, hemicellulose, and pectins, which are known components of algal cell walls.
- **Option 2** is incorrect because galactans and mannans are not typically found in algal cell walls.
- **Option 3** is incorrect as proteins are not a primary component of algal cell walls.
- **Option 4** is also incorrect since while pectins and cellulose are present, proteins are not a significant component.

5. **Conclusion**: The correct answer is Option 1: Algal cell walls are made up of cellulose, hemicellulose, and pectins.

---