Free Biodiversity and Variety of Life MCQs with Answers

391. Unlike plants and like animals, fungi lack:

• A. Cell wall
• B. Cellulose
• C. Chitin
• D. Definite nuclei

Explanation: Answer is "Cellulose"Explanation: Cellulose is found in the cell wall of plants and algae, fungi have chitinous cell wall. Animals cell lack cellulose as a structure component

392. Fungi resemble arthropods unlike the rest of the animals concerning:

• A. Heterotrophic mode of nutrition
• B. Absence of chloroplast
• C. Presence of exoskeleton
• D. The chemical found in external covering of the body

Explanation: Answer is "The chemical found in external covering of the body"Explanation: Fungi have chitinous cell wall as external covering and insects have chitinous exoskeleton as external covering.

393. It has been estimated by mycologists that fungi and animals probably arose from:

• A. Different ancestors
• B. Common ancestors
• C. Ingestive heterotrophs
• D. Absorptive heterotrophs

Explanation: Answer is "Common ancestors"Explanation: As both animals and fungi are heterotrophs and both have chitin as a structural component.

394. Mention some unique characteristic of the fungi:

• A. Absorptive heterotrophic mode of nutrition
• B. Occurrence of chitin
• C. Capability of reproduction
• D. Nuclear mitosis

Explanation: Answer is "Nuclear mitosis"Explanation: Nuclear mitosis is a unique feature of fungi as no other group of organisms carries out nuclear mitosis.

395. The body of fungus consists of:

• A. Mycelium
• B. Hyphae
• C. Fruiting body
• D. Rhizoids

Explanation: Answer is "Hyphae"Explanation: Hyphae are the structural units of fungi except yeast.

396. It is more resistant to decay than cellulose and lignin:

• A. Glycogen
• B. Amylose
• C. Chitin
• D. Amylopectin

Explanation: Answer is "Chitin"Explanation: Chitin in more resistant to decay than cellulose and lignin.

397. The resting spore of fungi is called:

• A. Ascospore
• B. Basidiospore
• C. Conidium
• D. Zygospore

Explanation: Answer is "Zygospore"Explanation: Zygospore formed in zygomycota is a resistant body which can withstand the unfavorable conditions and upon arrival of favorable conditions starts germination.

398. Non-motile asexual spores produced uncovered on hyphal tips are called:

• A. Teliospores
• B. Basidiospores
• C. Zygospores
• D. Conidia

Explanation: Answer is "Conidia"Explanation: Conidia are also called naked spores as they lack any sporangial cover.

399. The appearance of mold on Jams and jellies indicates the fungal resistance against:

• A. Extreme pH
• B. Immense osmotic pressure
• C. Decomposition
• D. Desiccation

Explanation: Answer is "Immense osmotic pressure"Explanation: Jams and jellies are hyperosmotic media with saturation level of sugar and to grow in such medium requires immense osmotic resistance.

400. The fruiting body of a mushroom is called:

• A. Ascocarp
• B. Basidiocarp
• C. Mycelium
• D. Thalamus

Explanation: Answer is "Basidiocarp" Explanation: As mushroom (Agaricus) belongs to basidiomycota its fruiting body is called basidiocarp which bear basidia and basidiospores.