Kingdom Fungi

Question 1

mode of nutrition of fungi

Answer 1

heterotrophic

Question 2

white spots seen on mustard leaves are due to

Answer 2

parasitic fungus

Question 3

which unicellular fungus is used to make bread and beer

Answer 3

yeast

Question 4

wheat rust is caused by

Answer 4

puccinia

Question 5

example of a fungus used to make an antibiotic

Answer 5

penicillium

Question 6

where do fungus prefer to grow? in what kinds of places?

Answer 6

warm and humid

Question 7

are fungi filamentous

Answer 7

yes
except for yeast, it is unicellular

Question 8

bodies of fungi consist of long, slender thread like structures called

Answer 8

hyphae

Question 9

network of hyphae is known as

Answer 9

mycelium

Question 10

what are coenocytic hyphae

Answer 10

continuous hyphae filled with multinucleated cytoplasm
aseptate

Question 11

cell wall of fungi is composed of

Answer 11

chitin and polysaccharides

Question 12

except for coenocytic hyphae, others have ______ or ________ in their hyphae

Answer 12

septae
cross walls

Question 13

fungi which depend on living plants and animals are called

Answer 13

parasites

Question 14

fungi can also live as symbionts - in association with
algae as _______
roots of higher plants are _______

Answer 14

lichens
mycorrhiza

Question 15

all types of reproduction in fungi

Answer 15

vegetative means (fragmentation, fission, budding)
asexual means (spores)
sexual means (oospores, ascospores, basidiospores)

Question 16

asexual reproduction in fungi is by spores called

Answer 16

conidia
sporangiospores
zoospores

Question 17

various spores in fungi during sexual reproduction are produced in distinct structures called

Answer 17

fruiting bodies

Question 18

three steps of sexual reproduction in fungi

Answer 18

plasmogamy
karyogamy
zygotic meiosis

Question 19

what happens in plasmogamy

Answer 19

fusion of protoplasms between two motile or non-motile gametes

Question 20

what happens in karyogamy

Answer 20

fusion of the two nuclei

Question 21

meiosis is performed in zygote to produce what type of spores

Answer 21

haploid

Question 22

in which fungi is there a dikaryophase

Answer 22

ascomycetes
basidiomycetes

Question 23

what happens in dikaryophase

Answer 23

n + n state
dikaryon state
(two different nuclei in same cell)

Question 24

fungi form fruiting bodies in which, which type of division occurs to form which type of spores

Answer 24

meiosis
haploid

Question 25

basis of division of fungi kingdom into classes

Answer 25

morphology of mycelium mode of spore formation fruiting bodies

Question 26

classes under fungi

Answer 26

phycomycetes ascomycetes basidiomycetes deuteromycetes

Question 27

habitat of phycomycetes

Answer 27

aquatic decaying wood in moist and damp places plants as obligate parasites

Question 28

what is an obligate parasite

Answer 28

which cannot survive without exploitation of host

Question 29

how is the mycelium of phycomycetes

Answer 29

aseptate, coenocytic

Question 30

how does asexual reproduction in phycomycetes take place

Answer 30

zoospores (motile) aplanospores (non-motile)

Question 31

the zoospores and aplanospores formed in phycomycetes are endogenously produced in which type of fruiting body

Answer 31

sporangium

Question 32

how is a zygospore formed

Answer 32

fusion of two gametes

Question 33

gametes that are morphologically similar are called

Answer 33

isogamous gametes

Question 34

gametes that are not morphologically similar are called

Answer 34

anisogamous oogamous

Question 35

examples of phycomycetes

Answer 35

mucor rhizopus albugo

Question 36

which fungi is a bread mould

Answer 36

rhizopus

Question 37

parasitic fungi on mustard

Answer 37

albugo

Question 38

which class of fungi is commonly known as sac-fungi

Answer 38

ascomycetes

Question 39

example of a multicellular and a unicellular ascomycete

Answer 39

penicillium yeast (saccharomyces)

Question 40

when fungi grow on dung, they are known as

Answer 40

coprophilus

Question 41

mode of nutrition of ascomycetes

Answer 41

saprophytic decomposers parasitic coprophilus

Question 42

how is the mycelium of ascomycetes

Answer 42

branched and septate

Question 43

asexual spores of ascomycetes are ___________ produced exogenously on the special mycelium called _____________

Answer 43

conidia conidiophores

Question 44

conidia of ascomycetes on germination produce

Answer 44

mycelium

Question 45

sexual spores of ascomycetes are called ________ which are produced endogenously in sac-like ________

Answer 45

ascospores asci

Question 46

asci of ascomycetes are arranged in different types of fruiting bodies called

Answer 46

ascocarps

Question 47

examples of ascomycetes

Answer 47

aspergillus claviceps neurospora morels and truffles penicillium yeast

Question 48

which ascomycetes is used extensively in biochemical and genetic work

Answer 48

neurospora

Question 49

which ascomycetes are edible and are considered as delicacies

Answer 49

morels truffles

Question 50

commonly known forms of basidiomycetes are

Answer 50

mushrooms bracket fungi puffballs

Question 51

habitat of basidiomycetes

Answer 51

soil logs and tree stumps plants as parasites

Question 52

examples of basidiomycetes which live on plants as parasites

Answer 52

rusts smuts

Question 53

how is the mycelium of basidiomycetes

Answer 53

branched and septate

Question 54

what type of reproduction is common in basidiomycetes

Answer 54

vegetative reproduction by fragmentation

Question 55

how are the asexual spores of basidiomycetes

Answer 55

generally not found

Question 56

how is plasmogamy brought about in basidiomycetes when sex organs are absent

Answer 56

fusion of two vegetative / somatic cells of different strains / genotypes

Question 57

in basidiomycetes, after plasmogamy, what is the state of resultant structure that ultimately gives rise to basidium

Answer 57

dikaryotic

Question 58

after plasmogamy, karyogamy and meiosis take place in the basidium to exogenously produce

Answer 58

four basidiospores

Question 59

what are fruiting bodies of basidia called

Answer 59

basidiocarps

Question 60

examples of basidiomycetes

Answer 60

agaricus (mushroom) ustilago (smut) puccinia (rust)

Question 61

what are deuteromycetes commonly known as

Answer 61

imperfect fungi

Question 62

why are deuteromycetes commonly known as imperfect fungi

Answer 62

only asexual or vegetative phases of these fungi are known

Question 63

what was done when sexual (perfect) forms of deuteromycetes was discovered

Answer 63

often moved to ascomycetes and basidiomycetes

Question 64

deuteromycetes reproduce only by asexual spores known as

Answer 64

conidia

Question 65

how is the mycelium of deuteromycetes

Answer 65

branched and septate

Question 66

mode of nutrition of deuteromycetes

Answer 66

saprophytes parasites most of them are decomposers and help in mineral cycling

Question 67

examples of deuteromycetes

Answer 67

alternaria colletotrichum trichoderma