Cell structure

Question 1

plasma membrane

Answer 1

regulates movement of substances in and out of the cell, also involved in cell signalling

Question 2

cell wall

Answer 2

helps the structure of plant cells

Question 3

nucleus

Answer 3

controls the cells activities

Question 4

nucleolus

Answer 4

synthesises ribosomes

Question 5

nuclear envelope

Answer 5

allows substances in and out of the nucleus (e.g RNA)

Question 6

lysosome

Answer 6

contains digestive enzymes and turn toxic substances into digestible compounds

Question 7

ribosome

Answer 7

protein synthesis

Question 8

rough endoplasmic reticulum

Answer 8

folds and processes proteins the ribosomes create

Question 9

smooth endoplasmic reitculum

Answer 9

lipid and carbohydrate synthesis/storage

Question 10

vesicle

Answer 10

moves by the cytoskeleton and transports substances, can perform exocytosis

Question 11

Golgi apparauts

Answer 11

process and packages protiens/ creates lysosomes

Question 12

mitochondrion

Answer 12

site of aertobic respiration where ATP is produced

Question 13

what is the matrix of the mitochondrion

Answer 13

where respiration occurs, there are enzymes in the matrix which assist

Question 14

chloroplast

Answer 14

where photosynthesis occurs

Question 15

centriole

Answer 15

splitting of cell fibres during mitosis

Question 16

cilia

Answer 16

move substances, made up of microtubules in a 9+2 arrangement

Question 17

what is a 9+2 arrangement

Answer 17

9 pairs on the outside with 2 microtubules in the middle

Question 18

flagellum

Answer 18

9+2 arrangement, microtubule contraction allows the tail of the cell to move

Question 19

cytoskeleton

Answer 19

to allow substance movement and maintain cell structure

Question 20

microtubules

Answer 20

used in cilia/flagellum, small tubes, make up spindle fibres

Question 21

microfilaments

Answer 21

aid cytokinesis, cell movement

Question 22

intermediate fibres

Answer 22

mechanical strength