Cytoskeleton


 
 
Concept Explanation
 

Cytoskeleton

Cytoskeleton : The cytoskeleton is formed by microtubules and microfilaments.A.    Microtubules are hollow tubules made up of protein units called tubulin. They from Centrioles, flagella and cilia.B.    Microfilaments are thinner filaments. They are solid rods, built from a protein called actin.Function of Cytoskeleton: The cytoskeleton gives structural support to the cell, and helps in cell motility (cell movement, e.g., amoeboid movement).

 

Sample Questions
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Question : 1

Which of the following are correct :

(a) Microfilaments are hollow tubules made up of protein units called tubulin.

(b) Microtubules are thinner filaments built from a protein called actin.

(c) The cytoskeleton gives structural support to the cell.

Right Option : C
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Explanation
Question : 2

Which of the following are correct :

(a) Microtubules are hollow tubules made up of protein units called tubulin.

(b)  Microfilaments are thinner filaments built from a protein called actin.

(c) The cytoskeleton is formed by microtubules and microfilaments.

Right Option : D
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Explanation
Question : 3

The cytoskeleton is formed by ______________________.

Right Option : C
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Explanation
 
 
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