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4

In the life-history of Ascaris lumbricoides in human host the juvenile stage hatches out from the egg in

A. intestine

B. stomach

C. hydrocoel

D. pseudocoel

Correct Answer :

A. intestine


Related Questions

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4

In the life cycle of Ascaris, the rhabditi form larvae are liberated in the

A. lungs before migrating to small intestine

B. human excreta

C. Soil

D. upper part of small intestine

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During growth, the Ascaris undergoes moulting in the body of host for

A. two times

B. four times

C. five times

D. six times

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The intermediate host in the life cycle of Ascaris is

A. cattle

B. man

C. a fresh water fish

D. none of these

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4

The period of incubation in Ascaris outside the human body is

A. 4 to 8 days

B. 8 to 14 days

C. 15 to 30 days

D. more than 30 days

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4

In the life-history of Ascaris lumbricoides in human host the juvenile stage hatches out from the egg in

A. intestine

B. stomach

C. hydrocoel

D. pseudocoel

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4

Number of testis in male Ascaris is

A. one

B. one pair

C. two pairs

D. three pairs

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4

Which of the larvae of Ascaris is most pathogenous in the host ?

A. First in embryosphere

B. Second in embryosphere

C. Third in liver

D. Fourth in lungs

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4

The body cavity of Ascaris is a pseudo-coel because

A. it contains large cells termed pseudo-coelocytes

B. it is bounded externally by muscle layer and internally by intestines

C. it has very little parenchyma

D. it is filled with pseudocoelomic fluid

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4

Which is not a typical character of class Nematoda ?

A. Syncytial epidermis

B. Pseudocoel

C. Non-living cuticle

D. Only parasitic animals and plants

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4

The shape of fertilised egg of Ascaris, leaving the alimentary canal of man is

A. elliptical with wavy surface

B. rounded with wavy surface

C. elliptical with smooth surface

D. not fixed, and varies considerably

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4

Ascaris is found as endoparasite in

A. blood of man

B. intestine of man

C. muscles of pig

D. body cavity of man

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4

Which disease is caused by a nematode ?

A. Amoebiasis

B. Filariasis

C. Poliomyelitis

D. Leprosy

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4

The cuticle has spines in

A. Fasciola

B. Taenia

C. Ascaris

D. Dracunculus

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4

Chenopodium oil is successfully used for expulsion of

A. tapeworms

B. liver flukes

C. flat worms

D. roundworms

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Which of the following has no alternate host?

A. Fasciola hepatica

B. Ascaris lumbricoides

C. Plasmodium vivax

D. Tapeworm

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4

A gravid proglottid has

A. both male and female reproductive organs

B. only male reproductive organs

C. only female reproductive organs

D. branched uterus filled with completed eggs

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4

The life span of Ascaris is

A. more than 30 days

B. six months

C. nine months

D. about an year

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4

The female genital pore in Ascaris is situated on the ventral side

A. about 1/3 behind from the anterior end

B. middle part of the body

C. about 1/3 ahead of the posterior end

D. terminal at the posterior end

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4

In Ascaris mark the correct statement:

A. The testis is monoarchic, telogenic and the sperms are amoeboid

B. The testis is monoarchic, telogenic and the sperms are flagellated

C. The coelom in haemocoel

D. The gonads are metagonic and eggs are centrolecithal

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4

Pineal setae arise from

A. vulva of female Ascaris

B. roof of diencephalon

C. cloaca of an amphibian

D. cloaca of male roundworm

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4

Which of the following is almost devoid of external features ?

A. Liver fluke

B. Tapeworm

C. Blood fluke

D. Nematode worms

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4

The dorsal and ventral lines in Ascaris contain

A. nerve cords

B. nerves

C. excretory canals

D. oviducts

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The female Ascaris can be distinguished from the male by

A. curved posterior part

B. straight posterior part

C. pinearl setae

D. shorter in size

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Sense organs of Ascaris are

A. epidermal cords

B. spicules

C. papillae and amphids

D. circumcentric ring

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Lips of Ascaris are

A. cartilaginous

B. homy

C. bony

D. denticulate

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Ascaris lumbricoides is a worm of class Nematoda of the Phylum

A. platyhelminthes

B. annelida

C. arthropoda

D. aschelminthes

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In Ascaris only the anterior part of the testis is functionable. Such a gonad is known as

A. monarchic

B. didelphic

C. telogenic

D. metagonic

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In order to counter act the host's digestive juices, Ascaris produces

A. a hormone

B. an antienzyme

C. enterokinase

D. hydrochloric acid

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The infective stage in the life cycle of Ascaris is

A. fertilized egg

B. cyst

C. second larva

D. third larva

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The lateral epidermal chords of Ascaris eneolse in it

A. nerve cords

B. blood vessels

C. excretory ducts

D. reproductive ducts