Quiz No:11

Questions No:1

In which of the following plants, a vacuolated, sterile columella is present?

[A] In sporangium of Rhizopus

[B] Cleiostothecium of Penicillium

[C] Basidium of Agaricus

[D] Yeast ascus

Questions No:2

The hyphae of Rhizopus which help in spreading of the mycelium on bread are known as

[A] zygophores

[B] sporangiophores

[C] stoloniferous hyphae

[D] rhizoidal hyphae

Questions No:3

The negatively geotrophic and unbranched hyphae in Rhizopus are known as

[A] sporangiophores

[B] zygophores

[C] stoloniferous

[D] rhizoidal hyphae

Questions No:4

As regards the mode of nutrition is concerned, Bread mold is considered to be a

[A] parasite

[B] saprophyte

[C] shows mutualism

[D] epiphyte

Questions No:5

One of the following units helps the Rhizopus for perennation

[A] chlamydospores

[B] ascospores

[C] sporangiospores

[D] oidia

Questions No:6

In Penicillium species having branched condiophores, the ultimate branches bearing tufts of flasl shaped sterigmata of the phialides are called

[A] metulae

[B] conidiophores

[C] rami

[D] none of these

Questions No:7

The Drosophila of plant kingdom is

[A] Aspergillus

[B] Neurospora

[C] Saccharomyces

[D] Sardaria

Questions No:8

In mushrooms and puffballs, edible part represents

[A] mycelium

[B] ascocarp

[C] basidiocarp

[D] rhizomorph

Questions No:9

Dikaryotization (n + n) in Agaricus is brought about by

[A] clamp connections

[B] somatogamy between two hyphae of different strain

[C] both correct

[D] basidiospores

Questions No:10

The gills of a mushroom/gills fungi

[A] help in respiration

[B] help in nutrition

[C] bear spores which help in reproduction

[D] help in enhancing buoyancy

Questions No:11

Asexual spores in ascomycetes are called

[A] ascospores

[B] conidia

[C] zoospores

[D] sporangiospores

Questions No:12

The umbrella shaped structure of the basidiocarp of Agaricus is known as

[A] stipe

[B] gill

[C] hymenium

[D] pileus

Questions No:13

Fermentation to produce alcohol by yeast (Saccharomyces) is due to

[A] amylase

[B] invertase

[C] zymase

[D] galactase

Questions No:14

Yeasts differ from bacteria in being

[A] unicellular

[B] eukaryotic

[C] prokaryotic

[D] akaryotic

Questions No:15

The non mycelial unicellular ascomycetes having no fruiting bodies are known as

[A] Yeasts

[B] Blue molds

[C] Lichens

[D] Mushrooms

Questions No:16

The algal partner of the lichen thallus is known as

[A] mycobiont

[B] phycobiont

[C] basidiobiont

[D] lichenobiont

Questions No:17

Most of the lichens are composed of

[A] blue green algae and ascomycetes

[B] green algae and ascomycetes

[C] green algae and basidiomycetes

[D] blue green algae and basidiomycetes

Questions No:18

Lichens are indicators of

[A] water pollution

[B] air pollution

[C] soil pollution

[D] all of these

Questions No:19

Lichens are ecologically important as they

[A] purify air

[B] are pioneers of ecological succession on barren rocks (Lithosere)

[C] are symbionts of algae and fungi

[D] are associated with mycorrhizal roots

Questions No:20

Lichens are found in

[A] xerophytic habitat

[B] mesophytic habitat

[C] aquatic habitat

[D] all of the above

Questions No:21

White rust of crucifers is due to

[A] Albugo Candida (=Cystopus candidus)

[B] Cercospora personata

[C] Phytophthora infestans

[D] Pythium debaryanum

Questions No:22

Deadliest mushroom is

[A] Pleurotus

[B] Amanita

[C] Volvariella

[D] Agaricus