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Biology 12 Chapter 16 - Support and Movements - 10
1.
An ………….. is hardened outer covering to which internal muscles are attached?
Endoskeleton
None
Hydrostatic skeleton
Exoskeleton
2.
Which of the following skeleton is inert and non-living?
None
Endoskeleton
Hydrostatic skeleton
Exoskeleton
3.
From where exoskeleton is secreted?
All of above
Ectoderm
Mesoderm
Endoderm
4.
Exoskeleton is composed of, how many layers?
Four
Two
Three
One
5.
The outer most layer of exoskeleton is called?
Procuticle
Mesocuticle
Cuticle
Epicuticle
6.
Epicuticle is made up of ………….?
lipoprotein
Chitin
Glycolipid
Glycoprotein
7.
The inner layer of exoskeleton is called?
Epicuticle
Procuticle
Cuticle
Mesocuticle
8.
Procuticle is made up of ………….?
Chitin and protein
Glycoprotein
lipoprotein
Glycolipid
9.
What is the simplest example of an exoskeleton?
Shell of mollusca
Sea anemone
Earthworm
Annelids
10.
Which of the following is the function of exoskeleton in arthropods?
Protects against their enemies
Protects against rough environment
All of these
Protects them from drying
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