Question

Archaebacteria differ from eubacteria in?

• A. Cell membrane
• B. Cell shape
• C. Mode of reproduction
• D. Mode of nutrition

Answer 1

The correct option is A

Cell membrane

The correct option is A.

Explanation of correct option:

1. Archaebacteria are mainly found in harsh environments such as hot springs, salty, and marshy regions. Example, Halobacterium.
2. Eubacteria (true bacteria) are found all over the earth. Example, cyanobacteria.
3. Archaebacteria are similar to eubacteria in cell shape, mode of reproduction, and nutrition.
4. Archaebacteria differs from eubacteria only in the cell membrane. The membrane lipids present in Archaebacteria are ether-linked, whereas, the eubacteria contain ester-linked membrane lipids.

Final answer: Archaebacteria differ from eubacteria in the cell membrane.