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Of the following statements which are no...

Of the following statements which are not relevant to archaebacteria?
A. They live in some of the most harsh habitats
B. They are present in the gut of several ruminant animals
C. They are characterised by the presence of a rigid cellulosic cell wall
D. They include mycoplasma
E. They are also referred to as blue-green algae.

A

A, B and C

B

A, C and E

C

C, D and E

D

A, C and D

Text Solution

AI Generated Solution

The correct Answer is:
To determine which statements are not relevant to archaebacteria, we will analyze each option provided in the question. ### Step-by-Step Solution: 1. **Statement A: They live in some of the most harsh habitats.** - This statement is relevant to archaebacteria. Archaebacteria are known for thriving in extreme environments such as hot springs, salt lakes, and deep-sea vents. 2. **Statement B: They are present in the gut of several ruminant animals.** - This statement is also relevant. Some archaebacteria, specifically methanogens, are indeed found in the digestive tracts of ruminant animals, where they help in the digestion process. 3. **Statement C: They are characterized by the presence of a rigid cellulosic cell wall.** - This statement is **not relevant** to archaebacteria. Archaebacteria do not have a cell wall made of cellulose; instead, they typically have a cell wall composed of proteins or pseudopeptidoglycan. 4. **Statement D: They include mycoplasma.** - This statement is **not relevant**. Mycoplasma are not archaebacteria; they are a group of bacteria that lack a cell wall and belong to a different classification. 5. **Statement E: They are also referred to as blue-green algae.** - This statement is **not relevant**. Blue-green algae are actually cyanobacteria, which are a different group of photosynthetic bacteria, not archaebacteria. ### Conclusion: The statements that are **not relevant** to archaebacteria are: - C. They are characterized by the presence of a rigid cellulosic cell wall. - D. They include mycoplasma. - E. They are also referred to as blue-green algae. ### Final Answer: C, D, and E are the statements that are not relevant to archaebacteria.
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