Other organelles (not membrane bound)

Question 1

What is the role of ribosomes?

Answer 1

Site of protein synthesis

Question 2

What is the role of the cellulose cell wall?

Answer 2

Provides strength to plant cells to prevent bursting due to osmosis

Question 3

What is the cytoskeleton and what does it do?

Answer 3

It is a network of protein monofilaments.
- gives strength to cell
- maintains cell shape
-allows movement of vesicles and holds order organelles in place
-forms flagella which move cells
-forms cilia which can move substances over the cell surface

(Cilia and flagella are extensions of the cytoskeleton)

Question 4

What is the role of centrioles?

Answer 4

They work with the cytoskeleton to form and organise spindle fibres (they move chromosomes during mitosis)