active and bulk transport

Question 1

what type of transport is active and bulk transport?

Answer 1

energy is required

Question 2

what is active transport?

Answer 2

the movement of substances against their concentration gradient- moving from an area of low concentration to high concentration

Question 3

name and explain an example of active transport

Answer 3

sodium potassium pump
cells have a high concentration of K+ on the inside and a high concentration of Na+ on the outside
Na+ and K+ ions are moved against the concentration gradient with the help of specific membrane protein and the use of energy
3 Na+ move out and 2 K+ move in

Question 4

what is involved in bulk transport?

Answer 4

vesicle- bubble like sac used to store and transport substances in and out of the cell

Question 5

what are the two types of bulk transport?

Answer 5

endocytosis

exocytosis

Question 6

what is endocytosis?

Answer 6

substances move from outside of the cell to inside of the cell

Question 7

what are the three parts of endocytosis?

Answer 7

phagocytosis
pinocytosis
receptor-mediated endocytosis

Question 8

what is phagocytosis?

Answer 8

intake of a large drop of fluid and larger (undissolved) particles

Question 9

what is pinocytosis?

Answer 9

intake of substances that attach to receptors (proteins) on the surface of the membrane

Question 10

what is receptor-mediated endocytosis?

Answer 10

intake of substances that attach to receptors (proteins) on the surface of the membrane

Question 11

what is exocytosis?

Answer 11

release of substances from the inside of the cell to the outside of the cell