NEET UG Botany MCQ-18

Question No:1

Which of the following is not pathogenic?

(A) Yeast
(B) Albugo
(C) Alternaria
(D) Ustilago

Question No:2

Which of the following is a heteroecious fungus?

(A) Ustilago
(B) Puccinia
(C) Albugo
(D) Phytophthora

Question No:3

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

Question No:4

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

Question No:5

The negatively geotropic and unbranched hyphae in Rhizopus are known as

(A) sporangiophores
(B) zygophores
(C) stoloniferous
(D) rhizoidal hyphae

Question No:6

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

(A) parasite
(B) saprophyte
(C) shows mutualism
(D) epiphyte

Question No:7

One of the following units of mycelium helps the Rhizopus for perennation

(A) chlamydospores
(B) ascospores
(C) sporangiospores
(D) oidia

Question No:8

The generic name Penicillium’ is given due to

(A) presence of septate mycelium
(B) presence of uninucleated cells
(C) presence of brush like asexual structures called penicillus
(D) presence of fruiting body known as colletotrichum.

Question No:9

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

(A) metulae
(B) conidiophores
(C) rami
(D) none of these

Question No:10

The Drosophila of plant kingdom is

(A) Aspergillus
(B) Neurospora
(C) Saccharomyces
(D) Sardaria

Question No:11

In mushrooms and puffballs, edible part represents

(A) mycelium
(B) ascocarp
(C) basidiocarp
(D) rhizomorph

Question No:12

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

(A) clamp connections
(B) somatogamy between two hyphae of different strains
(C) both correct
(D) basidiospores

Question No:13

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

Question No:14

Asexual spores in ascomycetes are called

(A) ascospores
(B) conidia
(C) zoospores
(D) sporangiospores

Question No:15

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

(A) stipe
(B) gill
(C) hymenium
(D) pileus

Question No:16

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

(A) amylase
(B) invertase
(C) zymase
(D) galactase

Question No:17

Yeasts differ from bacteria in being

(A) unicellular
(B) eukaryotic
(C) prokaryotic
(D) akaryotic

Question No:18

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

(A) Yeasts
(B) Blue molds
(C) Lichens
(D) Mushrooms

Question No:19

The fusion between daughter cells or sister cells in yeast is called

(A) pseudogamy
(B) adelphogamy
(C) pedogamy
(D) gemmation

Question No:20

The algal partner of the lichen thallus is known as

(A) mycobiont
(B) phycobiont
(C) basidiobiont
(D) lichenobiont