Question

Which of the following statements is incorrect regarding fungi?

• A. Yeasts have filamentous bodies with long thread-like hyphae.
• B. Morels and truffles are edible delicacies.
• C. Claviceps are a source of many alkaloids and LSD.
• D. Conidia are produced exogenously and ascospores endogenously.

Answer 1

The correct option is A

Yeasts have filamentous bodies with long thread-like hyphae.

The correct option is A.

The explanation for the correct option:

1. Any of the about 144,000 species of animals have been classified as belonging to the kingdom of Fungi, which also includes yeasts, rusts, smuts, mildews, moulds, and mushrooms.
2. In addition, some species resemble mushrooms but do not truly belong to the kingdom of Fungi, such as slime moulds and oomycetes (water moulds).
3. The creation of antibiotics by fungi has a long history, and more recently, a number of their enzymes have been used in detergents and other industrial uses.
4. Fungi are also used as biological pesticides to control weeds, plant diseases, and insect pests.
5. Fungi include, among other things, rusts, yeasts, moulds, stinkhorns, truffles, and mushrooms.

Explanation of incorrect options

Option B

1. Fungi include things like morels and truffles.
2. Both of them are edible and regarded as a delicacy found in watery environments, on plants as an obligatory parasite, and in wet and moist areas.
3. Aseptate and coenocytic mycelium is present.

Option C

1. Lysergic acid diethylamide, or LSD, is a powerful synthetic hallucinogen that may be made from ergot alkaloids.
2. It is also known as lysergide (as ergotamine and ergonovine, principal constituents of ergot, the grain deformity and toxic infection of flour caused by the fungus Claviceps purpurea).
3. Ergot alkaloids are being used as highly potent medications to treat a variety of medical conditions, including uterine atonia, postpartum hemorrhage, migraines, orthostatic circulatory abnormalities, senile cerebral insufficiency, hypertension, hyperprolactinemia, acromegaly, and parkinsonism.

Option D

1. The asexual spores of ascomycetes are conidia generated exogenously on the unique mycelium known as conidiophores.
2. Mycelium is produced by conidia upon germination. Ascospores, which are generated endogenously in sac-like asci, are sexual spores (singular ascus).

Final answer: The incorrect statement regarding fungi is yeasts have filamentous bodies with long thread-like hyphae.