Home
Class 12
BIOLOGY
Algae have cell wall made up of...

Algae have cell wall made up of

A

Hemicellulose, pectins and proteins

B

Pectins, cellulose and proteins

C

Cellulose, hemicellulose and pectins

D

Cellulose, galactans and mannans.

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Algae Types**: Algae are classified into three main groups: Chlorophyceae (green algae), Rhodophyceae (red algae), and Pheophyceae (brown algae). Each group has a distinct composition of its cell wall. 2. **Analyzing Chlorophyceae**: In Chlorophyceae, the cell wall consists of two layers. The inner layer is primarily made of cellulose, while the outer layer is composed of pectose. 3. **Analyzing Rhodophyceae**: In Rhodophyceae, the cell wall also has an inner layer made of cellulose, but the outer layer is made of pectins. 4. **Analyzing Pheophyceae**: In Pheophyceae, the cell wall is similar to that of Chlorophyceae, with cellulose being the primary component. 5. **Evaluating the Options**: - **Option 1**: Hemicellulose, pectins, and proteins - Incorrect, as hemicellulose and proteins are not present in algae. - **Option 2**: Pectins, cellulose, and proteins - Incorrect, as proteins are not part of the cell wall. - **Option 3**: Cellulose, hemicellulose, and pectins - Incorrect, as hemicellulose is not present. - **Option 4**: Cellulose, galactans, and mannolans - This is the correct option because cellulose is present in the cell walls of algae, and galactans and mannolans are components found in the cell walls of certain types of algae. 6. **Conclusion**: The correct answer is Option 4: Cellulose, galactans, and mannolans. ---
Promotional Banner

Topper's Solved these Questions

  • KINGDOM PLANTAE OR METAPHYTA

    DINESH PUBLICATION ENGLISH|Exercise CYG|20 Videos

  • KINGDOM MONERA (THE PROKARYOTES)

    DINESH PUBLICATION ENGLISH|Exercise CHECK YOUR GRASP|20 Videos

  • KINGDOM PROTISTA (UNICELLULAR EUKARYOTES)

    DINESH PUBLICATION ENGLISH|Exercise CHECK YOUR GRASP|19 Videos

Similar Questions

Explore conceptually related problems

The cell wall is made up of

Meristematic tissues in plants are 1 Which have their walls made of cellulose 2 Which have intercellular spaces between them 3 Which store reserve food materials 4 Which have their cell walls made up of chitin

Cell wall is made up of

Algae have cells made up of

Consider the following statements :- (i) Bacteria have rigid cell wall made up of cellulose (ii) Bacteria do not reproduce by sexual reproduction. (iii) Ammonia is oxidised to nitrite by the bacteria Nitrosomonas. (iv) Viruses are obligate parasites, cannot be living without host cell. Which of the statements are correct and incorrect ?

Algal cell wall is made of

Gram -ve and +ve bacteria have cell membrane made up of

In the members of green alage the cell wall is double layred outer cell wall is made up of pectose while inner cell wall composed of :-

Assertion : Use of chitinase enzyme is necessary for isolation of DNA from yeast cells but not in case of Spirogyra. Reason : Fungal cell wall is made up of fungal cellulose or chitin.

Cellulose in plant cell wall is made up of