Question

Give a comparative account of the classes of Kingdom Fungi under the following:

(i)  mode of nutrition

(ii)  mode of reproduction

Answer 1

Fungi	Mode of nutrition	Mode of reproduction
(1) Phycomycetes	obligate parasiytes on plants or decaying on wood in moist and damp places	Asexual reproduction by zoospores(motile) or alpanospores (non motile)
(2) Ascomycetes	Saprophytic(yeast) decompoers parasitic or coprophilous(growing on dung)	Asexual spores are conidia produced exogenously on the special mycelium called conidiophores. Sexual spores are called ascospores produced endogenously in sac like asci
(3) Basidomycetes	saprophytes or parasites	Asexual spores not found. vegetative reproduction by fragmentation is is common. sex organs are absent, but plasmogamy is brought by fusion of two vegetative or somatic cells of different strains or genotypes.
(4) Deuteromycertes spores	decomposers mainly,few parasites	Only asexual or vegetative phase of these fungi are known. a. sexual reproduction by production of called conidia