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Biological Classification > Kingdom Protista > Flashcards

Kingdom Protista Flashcards

1
Q

unicellular eukaryotes are placed under which kingdom

A

protista

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2
Q

which kingdom does not have well defined boundaries

A

protista

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3
Q

habitat of protista

A

aquatic

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4
Q

do all protists have flagella or cilia

A

no
some do

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5
Q

how do protists reproduce

A

sexually as well as asexually

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6
Q

how do protists reproduce sexually

A

by a process which involves cell fusion and zygote formation

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7
Q

chrysophytes include

A

diatoms and golden algae

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8
Q

golden algae are also called

A

desmids

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9
Q

what are diatoms

A

photosynthetic algae

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10
Q

habitat of chrysophytes

A

fresh water and marine

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11
Q

those chrysophytes which float passively in water are called

A

planktons

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12
Q

structure of cell wall in diatoms

A

two thin overlapping shells like lid and base of a soap box
contains silica, hence indestructable

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13
Q

cell wall deposits of diatoms are called

A

diatomaceous earth

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14
Q

being gritty in nature, diatoms are used for

A

polishing, filtration of oils and syrups

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15
Q

cheief producers of the ocean

A

diatoms

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16
Q

habitat of dinoflagellates

A

marine

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17
Q

mode of nutrition of dinoflagellates

A

photosynthetic

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18
Q

colour of dinoflagellates

A

yellow
green
brown
blue
red
(depends on their main pigment)

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19
Q

structure of cell wall of dinoflagellates

A

has still cellulosic plates on outer surface

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20
Q

number of flagella in dinoflagellates

A

two
one is longitudinal
other is transverse which lies in a furrow between wall plates

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21
Q

example of a red dinoflagellate

A

Gonyaulax

22
Q

what are red tides

A

red dinoflagellates multiply so rapidly, they make the sea appear red
toxins are released which may kill other marine animals

23
Q

euglenoids habitat

A

fresh water organisms (stagnant water)

24
Q

what do euglenoids have instead of cell wall

A

a protein rich layer called pellicle which makes their body flexible

25
Q

do euglenoids have flagella

A

a long and a short one

26
Q

mode of nutrition of euglena

A

photosynthetic in presence of sunlight
heterotropic when deprived on sunlight by preying on smaller organisms

27
Q

what is identical in euglenoids and higher plants

A

pigments

28
Q

example of a euglenoid

A

euglena viridus

29
Q

mode of nutrition of slime moulds

A

saprophytic

30
Q

where are slime moulds usually found

A

among twigs and leaves

31
Q

how do slime moulds move

A

their body moves along decaying twigs and leaves engulfing organic material

32
Q

under suitable conditions, slime moulds form an aggregation called ___________ which may grow and spread over several feet

A

plasmodium

33
Q

in slime mould, during unfavourable conditions, plasmodium differentiates and forms

A

fruiting bodies which bear spores at their tips

34
Q

do these spores of slime moulds have true cell wall

A

yes

35
Q

do spores of slime mould survive in adverse conditions

A

yes, they are extremely resistant and survive for many years

36
Q

spores of slime moulds are dispersed by

A

air currents

37
Q

mode of nutrition of protozoans

A

heterotrophs ( predators / parasites )

38
Q

which protists are believed to be primitive relatives of animals

A

protozoans

39
Q

four major groups of protozoans

A

amoeboid
flagellated
ciliated
sporozoans

40
Q

where do amoeboid protozoans live

A

fresh water, sea water, moist soil

41
Q

how do amoeboid protozoans move and capture their prey

A

by putting out pseudopodia as in amoeba

42
Q

what do marine forms of amoeboid protozoans have

A

silica shells on their surface

43
Q

some of the marine forms of amoeboid protozoans such as ____________ are parasites

A

entamoeba

44
Q

are flagellated protozoans free-living or parasitic

A

either

45
Q

parasitic forms of flagellated protozoans cause diseases such as

A

sleeping sickness

46
Q

which flagellated protozoan causes sleeping sickness

A

trypanosoma

47
Q

habitat of ciliated protozoans

A

aquatic

48
Q

cavity of ciliated protozoans which opens to outside of the cell is called

A

gullet

49
Q

example of a ciliated protozoans

A

paramoecium

50
Q

sporozoans include which organisms

A

that have an infectious spore-like stage in their life cycle

51
Q

most notorious sporozoan

A

plasmodium (malarial parasite)

Biological Classification (6 decks)

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