Cytoskeleton

Question 1

Cytoskeleton

Answer 1

Network of fibres necessary for shape and stability of cell and also responsible for cell movement and movement of organelles inside cell

Question 2

Where is the cytoskeleton present in eukaryotic cells only

Answer 2

Present in cytoplasm of all eukaryotic cells

Question 3

What three fibres is the cytoskeleton made up of

Answer 3

Microfilaments
Microtubules
Intermediate filaments

Question 4

Microfilaments

Answer 4

Contractile fibres made of actin responsible for cell movement and contraction of cell

Question 5

Microtubules

Answer 5

Globular tubular proteins form a scaffold that determine shape of cell and also act as tracks for movement of organelles and form spindle fibres that separate chromosomes during cell division

Question 6

Intermediate filaments

Answer 6

Provide mechanical support to cell

Question 7

Centrioles are made out of what

Answer 7

(In most eukaryotic cells apart from flowering plants and fungi)
Comprised of Microtubules

Question 8

Where are centrioles found

Answer 8

Found in pairs forming a centrosome near the nucleus. Pairs are perpendicular to each other and involved in the assembly and organisation of spindle fibres during cell division.

Question 9

What else are made up of cytoskeletal fibres

Answer 9

Flagella and cilia