UNIT 2: key area 1 b) membrane proteins

Question 1

explain how the cell membrane helps manage these pathways

Answer 1

enzymes are vital proteins needed in metabolic pathways
proteins within the membrane act as:
- pumps - pumps ions in and out of cells by active transport
- pores - allows ions of a certain size to pass through the membrane using passive transport

Question 2

what does a pump do ?

Answer 2

pumps allow ions in and out of cells by using active transport

Question 3

what do pores do ?

Answer 3

allow ions of a specific size to pass through the membrane by using passive transport

Question 4

what is vital for proteins in metabolic pathways?

Answer 4

enzymes