Question

Consider the following statements Assertion (A): Phycomycetes are commonly called as sac fungi. Reason (R): In Phycomycetes zoospores or aplanospores are produced endogenously in sporangium. The correct answer is

• A. Both (A) and (R) are true, (R) is the correct explanation of (A)
• B. Both (A) and (R) are true, (R) is not the correct explanation of (A)
• C. (A) is true, but (R) is false
• D. (A) is false, but (R) is true

Hint:

Ascomycetes are called sac fungi because ascospores are produced inside asci. Phycomycetes reproduce through spores formed in sporangia.

Answer 1

The Correct Option is D

Concept: Fungi are classified into different groups based on their reproductive structures and life cycles. Phycomycetes and Ascomycetes are two distinct classes of fungi and should not be confused.

Step 1: Analyse the assertion. The assertion states that Phycomycetes are called sac fungi. This statement is incorrect. Sac fungi are actually Ascomycetes because sexual spores called ascospores are produced inside sac-like structures known as asci. Therefore Assertion (A) is false.

Step 2: Analyse the reason. Phycomycetes reproduce asexually by producing:
• Zoospores (motile spores)
• Aplanospores (non-motile spores) These spores are produced inside sporangia. Hence the reason is true.

Step 3: Determine the correct option. Assertion is false. Reason is true. Therefore option (D) is correct.