Question

Assertion : Bacterial cell wall is more complex than plant cell wall.
Reason : Bacterial cell wall contains proteins and oligosaccharides.

• A. Both Assertion and Reason are correct and Reason is the
  correct explanation of Assertion.
• B. Both Assertion and Reason are correct, but Reason is not
  the correct explanation of Assertion.
• C. Assertion is correct but Reason is incorrect.
• D. Assertion is incorrect but Reason is correct.

Answer 1

The correct option is A

Both Assertion and Reason are correct and Reason is the
correct explanation of Assertion.

Option (a):

Assertion statement:

1. Cell wall is a tough, rigid layer that surrounds some types of cells.
2. Plants, bacteria, fungi, algae and some archaea have cell wall.
3. The major function of the cell wall is to provide rigidity and mechanical support.

Reason statement:

1. Bacterial cell wall is more complex than plant cell wall. In bacteria, peptidoglycan forms the cell wall.
2. Peptidoglycan is a complex molecule composed of alternating units of N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM) cross-linked by short peptides.

Final answer: (a) Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.