Question

Choose the wrong statement.
(a) Yeast is unicellular and useful in fermentation.
(b) Penicillium is multicellular and produces antibiotics.
(c) Neurospora is used in the study of biochemical genetics.
(d) Morels and truffles are poisonous mushrooms.

Answer 1

Hint: These are like mushrooms and are not easily available and belong to Ascomycetes.

Complete answer:
Morels and truffles are poisonous. The correct statement is morels and truffles are edible and are considered as delicacies because they are not easily available as mushrooms. Morels and truffles are rich sources of iron and protein.
Ascomycetes are a class of Kingdom Fungi differentiated based on the mycelium, mode of spore formation and fruiting bodies. They are commonly known as sac-fungi because the sexual spores (Ascospores) produced by the fungi are present in a sac-like structure called ascus.
Ascomycetes are generally multicellular with yeast as an exception which is unicellular. Fungi are known to have varied functions in the system. Some fungi are used to produce antibiotics, which are used to control diseases in humans and animals. Penicillin antibiotic is derived from a common fungi Penicillium. Neurospora is used extensively in biochemical and genetic work.

So, the correct answer is 'Morels and truffles are poisonous mushrooms'.

Note:
Several important features of Ascomycetes-
- Mycelium of Ascomycetes is branched and separated.
- Asexual spores are conidia produced exogenously on conidiophores.
- Sexual spores called ascospores are produced endogenously in sacs like asci and are arranged in different types of fruiting bodies called ascocarps.
- Example: Aspergillus, Claviceps, Neurospora