Which of the following are the functions of cytoskeleton?

1. mechanical support

2. motility

3. maintenance of the shape of the cell

4. all of the above

Cytoskeleton is made up of

(1)Proteins

(2)carbohydrates

(3)lipids

(4)All of these

Cilia and flagella are

(1)microtubule

(2)microfilament

(3)intermediate filament

(4)Both A and B

Which of the following is not true about cilia and flagella

(1)Both help in locomotion

(2)cilia is shorter and flagella is longer

(3)Flagella works like Oars

(4)hair-like outgrowths of the cell membrane

How many of the following structures are synthesised by microtubules?

Centrioles, basal body, cilia, flagella, spindle fibres

(1)5

(2)4

(3)3

(4)2

Which of the following is the structural and functional unit of bacterial flagella and cilia

(1)axon

(2)axoneme

(3)flagellin

(4)All of the above

Which of the following is true about axoneme except

(1) It has nine doublets of peripheral microtubules

(2)2 centrally located microtubule

(3)nine radial spokes

(4)central sheath is absent

Cilium and flagellum emerge from centriole-like structure called as

(1)basal body

(2)shaft

(3)basal plate

(4)All of these

Which of the following is true about centrosome

(1)membraneless organelle

(2)contains two centrioles

(3)surrounded by amorphous pericentriolar

(4)All of these

The arrangement of peripheral microtubule in centrioles is

(1)9 as triplets

(2)9 as doublets

(3)9 as singlet

(4)Both A and B