Prepare for NEET with Botany-specific practice questions. Covering all major Botany chapters, this is perfect for your NEET Biology needs.
A taxonomist is studying a newly discovered organism. They find it to be eukaryotic, multicellular, heterotrophic, with chitinous cell walls and exhibiting absorptive nutrition. Based solely on these characteristics, to which of the following taxonomic groups could the organism most precisely be assigned?
Kingdom Fungi
Phylum Basidiomycota
Domain Eukarya
Class Ascomycetes
Which of the following features is NOT characteristic of the members of the kingdom Fungi?
Heterotrophic mode of nutrition
Presence of chlorophyll a and b
Cell wall made of chitin
Reproduction by spores
Which of the following features distinguishes fungi from plants?
Presence of cell wall
Eukaryotic cell structure
Heterotrophic mode of nutrition
Reproduction by spores
Which specific characteristic of fungal cell walls makes them resistant to degradation by common bacterial enzymes like lysozyme?
Presence of cellulose
Presence of chitin
Presence of peptidoglycan
Presence of lignin
Certain fungi exhibit a unique phenomenon called heterokaryosis. Which statement BEST describes its significance?
It represents a diploid stage in the fungal life cycle, crucial for sexual reproduction.
It results in the formation of dikaryotic hyphae, ensuring genetic uniformity within the mycelium.
It allows for the coexistence of genetically different nuclei within a single mycelium, potentially leading to novel genetic combinations.
It triggers the formation of resistant spores, aiding in survival under unfavorable conditions.
The symbiotic association between a fungus and the roots of a higher plant is known as mycorrhiza. Which of the following is NOT a benefit conferred by the fungus to the plant in this association?
Increased absorption of water and minerals
Protection against certain soil pathogens
Enhanced tolerance to drought and salinity
Nitrogen fixation from the atmosphere
Members of the fungal class Phycomycetes are unique among fungi in several ways. Which of the following features is NOT characteristic of Phycomycetes?
Presence of coenocytic hyphae
Production of zoospores with flagella
Formation of asci containing ascospores
A tendency to thrive in aquatic or moist environments
Consider the following statements about fungal nutrition:
I. All fungi are heterotrophic.
II. Some fungi are saprophytic, while others are parasitic.
III. Fungi can digest complex organic compounds like cellulose and lignin.
IV. Fungi exclusively absorb nutrients through phagocytosis.
Which of the above statements are CORRECT?
I and II only
II and III only
I, II, and III only
I, II, III, and IV
The fungal cell membrane contains ergosterol, a sterol unique to fungi. Many antifungal drugs target ergosterol. Why is this a viable strategy for antifungal therapy?
Ergosterol is essential for fungal cell wall synthesis, and its inhibition weakens the cell wall.
Targeting ergosterol disrupts fungal cell membrane integrity without significantly affecting human cells, which contain cholesterol.
Ergosterol is a key enzyme in fungal metabolic pathways, and its inhibition disrupts essential cellular processes.
Ergosterol is involved in fungal reproduction, and its inhibition prevents fungal growth and spread.
Which of the following is NOT a characteristic feature of Fungi?
Heterotrophic nutrition
Cell wall made of chitin
Reproduction by spores
Autotrophic nutrition
