Question

The imperfect fungi which are decomposers of litter and help in mineral cycling belong to

• A. Phycomycetes
• B. Ascomycetes
• C. Deuteromycetes
• D. Basidiomycetes.

Answer 1

The Correct Option is C

The question asks about the group of fungi known as imperfect fungi, which play a role as decomposers and contribute to mineral cycling. Let's analyze the options and identify why 'Deuteromycetes' is the correct answer.

1. Phycomycetes: These fungi are primarily aquatic and include algae-like fungi. They are not classified as imperfect fungi because they typically undergo sexual reproduction. Therefore, they do not fit the criteria of decomposers of litter in the context of 'imperfect fungi.'
2. Ascomycetes: These fungi are more commonly known for their ability to form spores within sac-like structures called asci. Ascomycetes include many plant pathogens as well as fungi associated with lichens. Though they can decompose organic matter, they are not specifically categorized as 'imperfect fungi.'
3. Deuteromycetes: Also known as 'imperfect fungi,' this group is defined by the absence of a known sexual reproduction phase. They are predominantly decomposers and have a significant role in breaking down organic matter, which contributes to mineral cycling. This makes them the correct answer to the question.
4. Basidiomycetes: These are fungi that typically produce spores on basidia. While they include many decomposers like mushrooms, they are not classified under 'imperfect fungi' since they have a sexual reproductive phase.

Therefore, the correct answer is Deuteromycetes because they are recognized as imperfect fungi that decompose organic litter and aid in mineral cycling.