Entry Test MCQ :: Support and Movement

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11.

Epinasty is controlled by

A.	Gibberellins	B.	Abscisins
C.	Auxins	D.	Cytokinins

12.

Gibberellins is an example of

A.	Growth inhibitor	B.	Growth stimulator
C.	Growth hormone	D.	None of these

13.

Which of the following animal has a hydrostatic skeleton:

A.	Earthworm.	B.	Round worm.
C.	Tape worm.	D.	Pin worm

14.

In an annelids, the contraction of circular muscle results in:

A.	Lengthening of the body.	B.	Shortening of the body.
C.	Widening of body	D.	Thinning of body

15.

Which of the following statement is incorrect about Molluscans?

A.	They are surrounded by single or double pieces of hard skeleton.	B.	Their shell grows as the animal grows.
C.	They have hydrostatic skeleton.	D.	They move by tube feet

16.

Which one of the following forms the blk of exoskeleton of an arthropod?

A.	Epicuticle.	B.	Procuticle.
C.	Ectocuticle.	D.	None of these

17.

Exoskeleton of a marine snail is composed of

A.	CaPO4	B.	CaCO3
C.	CaSO4	D.	SiO2

18.

Which of the following statement about an arthropod exoskeleton is incorrect?

A.	It permits gaseous exchange.	B.	It contains joints, for the same purpose as present in human skeletal system.
C.	It provides muscle attachment.	D.	Like all the other types of exoskeleton, they lack sensation.

19.

Ecdysone is

A.	An enzyme that digest endocuticle during an arthropodal ecdysis.	B.	A newly formed exoskeleton in authropods
C.	A hormone that regulates moulting in arthropods.	D.	A process that involves moulting.

20.

Endoskeleton is secreted by:

A.	Ectoderm.	B.	Endoderm.
C.	Mesoderm.	D.	All of these