Zoology XII - Animalia - General Account and Non-chordates including Protozoa 05

Question : 1

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Slipper animalcule is ___________ belongs to group __________of phylum protozoa. Choose the correct option which fills up the blanks in given statement

Options:

	Amoeba, Sarcodina
	Paramoecium, flagellata
	Entamoeba, ciliata
	Paramoecium, ciliata

Solution :

Paramoecium has cilia as locomotary structures.

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Question : 2

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Nuclear dimorphism is a character of

Options:

	Paramoecium
	Plasmodium vivax
	Amoeba proteus
	Trypanosoma

Solution :

Macronucleus and micronucleus are present in Paramoecium, so it show nuclear dimorphism.

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Question : 3

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Paramoecium feeds through

Options:

	Cytopyge
	Oral groove
	Buccal cavity
	Cytopharynx

Solution :

Ingestion of food in Paramoecium takes place through oral groove/peristome.

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Question : 4

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Mode of nutrition in Paramoecium is

Options:

	Saprozoic
	Saprophytic
	Holophytic
	Holozoic

Solution :

Paramoecium has holozoic mode of nutrition and food is bacteria.

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Question : 5

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In Paramoecium, trichocysts are present below the plasma lemma in ectoplasm and help in

Options:

	Reproduction
	Digestion
	Respiration
	Protection

Solution :

Trichocysts help in anchorage and protection

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Question : 6

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Which of the following statement is correct w.r.t. contractile vacuole in Paramoecium?

Options:

	Anterior contractile vacuole works faster than posterior
	Both contractile vacuoles work at same time
	Contractile vacuoles work alternately
	Only one contractile vacuole is present in Paramoecium

Solution :

Contractile vacuoles work alternately and posterior contractile vacuole works faster than anterior.

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Question : 7

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Protozoans reproduce by various method. Which of the following protozoan reproduce both by binary fission and conjugation?

Options:

	Balantidium
	Paramoecium
	Amoeba
	Both (b) & (c)

Solution :

Paramoecium reproduce asexually by binary fission while sexually by conjugation.

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Question : 8

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In the body of Paramoecium, the elimination of undigested residual matter takes place through the

Options:

	Anus
	Gullet
	Cytostome
	Cytopyge

Solution :

Cytopyge/cell anus which remove/ eliminate the undigested residual matter out of the body of Paramoecium.

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Question : 9

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Which of the following ciliate cause dysentery?

Options:

	Entamoeba histolytica
	Paramoecium caudatum
	Balantidium coli
	Giardia

Solution :

Giardia (flagellate) and Entamoeba (sarcodine) also cause dysentery.

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Question : 10

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Given below is a diagram of a protozoan

Identify the protozoan and choose the incorrect statement w.r.t the given protozoan.

Options:

	Presence of large number of cilia on whole body surface
	Unicellular organism and has a macronucleus for trophic function and micronucleus for reproduction
	Contain contractile vacuole for osmoregulation
	Fresh water inhabitant and use pseudopodia for capturing of prey

Solution :

Pseudopodia are the characteristic feature
of Amoeba.