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CONTENTS

Wednesday, August 18, 2010

V.V.V.IMPORTANT SHORT ANSWER QUESTIONS FOR QUARTERLY

THE STRUCTURE OF THE MATURE PROGLATID OF TAPE WORM
1.In tape worm the mature proglatid consists of male and female reproductive systems
2.In male reproductive system the following organs are present :-
a)Testes which are scattered in parenchyma
b)Vas efferens
c)Vas differens
d)Copulatory structure called cirrus
e)Genital atrium
3.In female reproductive system following organs are present:-
a)A large bilobed ovary
b)An isthmus which connects the two lobes of the ovary
c)Oviduct which opens into ootype
d)Ootype which is surrounded by mehlisglands
e)Vitelline gland
f)Vagina
g)Uterus
4.Excretory canals and nervecords are present
5.Flamecells open into excretory canals
THE STRUCTURE OF MICROFILARIA LARVA
1.Microfilaria larva is the infective stage of Wuchereria to mosquito
2.It is surrounded by cuticle
3.The larval surface is covered by flattened epidermal cells
4.An oral stylet is present at anterior end
5.The other important parts of microfilaria are :-
a)Nerve ring
b)Excretory pore
c)Rennete cell
d)Four large germinal cells
e)Future analpore
f)A darkly stained innercellmass
g)Somatic cellmas
DIFFEREN TYPES OF FLAGELLA IN PROTOZOANS
There are five different types of flagellae in protozoans ,they are :-
1.Stichonematic : One row of lateral appendages are present Eg : Euglena
2.Pantonematic : Two or more rows of lateral appendages are present Eg : Monas
3.Acronematic : Lateral appengages are absent , a terminal filament is present
Eg : Chlamidomonas
4.Pantacronematic : Two or more rows of lateral appendages andterminalfilament are present Eg : Urceolus
5.Anematic : Lateral appendages and terminal filament are absent
Eg : Chilomonas

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