TNPSC SA Zoology Paper 2010

TNPSC Scientific Assistant Zoology Paper 2010

Nutrition in Euglena is
(a) Holophytic
(b) Saprophytic
(c) Mixotrophic
(d) None of these

Ceratium belongs to the class
(a) Phytomastigophorea
(b) Zoomastigophorea
(c) Ciliata
(d) Rhizopodea

Consider the following statements
Assertion (A) – Paramecium is called slipper animalcule.
Reason (R) – It moves forward with pointed end.
Now select your answer according to the coding scheme given below –
(a) Both (A) and (R) are true and (R) is the correct explanation of (A)
(b) Both (A) and (R) are true but (R) is not the correct explanation of (A)
(c) (A) is true, but (R) is false
(d) (A) is false, but (R) is true.

Which one of the following is correctly mathced?
(a) Hyparammina – Nodosariod
(b) Textularia – Elphidium
(c) Cyclamina – Cyclic
(d) Discospirulina – Textularid

Trophozoite of Entamoeba reproduces by
(a) budding
(b) binary fission
(c) multiple fission
(d) None of these

Consider the following statements
I- A microspheric form in Elphidium reproduces asexually by multiple fission
II- A megalospheric form reproduces sexually be isogametes.
of these statements
(a) (I) is false, but (II) is true
(b) Both are false
(c) (II) is false, but (I) is true
(d) Both are true

Choose the wrong statement regarding neuromotorium
(a) It is small bilobed mass
(b) Endoplasmic fibrils radiate from it
(c) Located on the anterior margin of cytostome
(d) Coordinates the feeding movement of oral cilia

Shell of Arcella has an aperture on the ventral side called
(a) Pylome
(b) Chromidia
(c) Osculum
(d) Plakea

If the shell of Foraminifera is opaque white like porcelain and is not perforate, the type of shell is called
(a) Vitreous
(b) Arenaceous
(c) Porcellanous
(d) Porcellanate

Anisogamy is the fusion of
(a) two young individuals
(b) two similar gametes
(c) two dissimilar gametes
(d) two mature individuals