The call wall of algae is made up of :-
(a) Cellulose (b) Galactans
( c )`CaCO_(3)` (Calcium carbonate ) (d) Hemicellulose
( e ) Shberin (f) Mannans
Choose correct combination:-

Options

A. a, e, d, f
B. a, b, c, d
C. a, b, d, e
D. a, b, c, f

Answer

To determine the correct components of the cell wall of algae from the given options, we can analyze each option step by step:

1. **Cellulose (a)**:
- Cellulose is a polysaccharide that is a major component of the cell walls of many plants and algae. It provides structural support.
- **Conclusion**: Cellulose is present in the cell wall of algae.

2. **Galactans (b)**:
- Galactans are polysaccharides made up of galactose derivatives. They are also found in the cell walls of various algae, contributing to the structure.
- **Conclusion**: Galactans are present in the cell wall of algae.

3. **Calcium Carbonate (c)**:
- Calcium carbonate can be found in the cell walls of certain types of algae, particularly in some red algae and coralline algae, where it provides rigidity.
- **Conclusion**: Calcium carbonate is present in the cell wall of algae.

4. **Hemicellulose (d)**:
- Hemicellulose is a complex carbohydrate that is typically found in the cell walls of higher plants but is not a major component of algal cell walls.
- **Conclusion**: Hemicellulose is not present in the cell wall of algae.

5. **Suberine (e)**:
- Suberine is a waxy substance found in the cell walls of cork cells and is not associated with algal cell walls.
- **Conclusion**: Suberine is not present in the cell wall of algae.

6. **Mannans (f)**:
- Mannans are polysaccharides made up of mannose derivatives. They can also be found in the cell walls of certain algae.
- **Conclusion**: Mannans are present in the cell wall of algae.

### Final Conclusion:
Based on the analysis, the correct components of the cell wall of algae are:
- (a) Cellulose
- (b) Galactans
- (c) Calcium Carbonate
- (f) Mannans

Thus, the correct combination is: **(a), (b), (c), and (f)**.

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