Active Transport, Osmosis, Diffution

Question 1

What protein uses active transport?

Answer 1

Carrier protein it changes shape for large molecules to go through.

Question 2

Definition of diffusion.

Answer 2

Movement of molecules from a high concentration to a lower concentration.

Question 3

Factors effecting diffusion? 3

Answer 3

Temperature
Surface area
Diffusion path

Question 4

Define osmosis? Alevel

Answer 4

Movement of water down a water potential gradient (less negative wp to more positive wp)

Question 5

Define active transport?

Answer 5

Movement of particles from a region of lower concentration to a region a higher concentration.

Question 6

1. What is the first process of active transport using carrier proteins?

Answer 6

1. Molecules bind to receptors of carrier proteins

Question 7

2. What is the second process of active transport using carrier proteins? (A)

Answer 7

2. ATP binds to Inside of carrier protein and hydrolysed into phosphate and ADP (releasing energy)

Question 8

3. What is the third process of active transport using carrier proteins? (P)

Answer 8

3. Phosphate and ADP causes protein to change shape. Allowing molecule to go to other side.

Question 9

4. What is the fourth process of active transport using carrier proteins? (Released)

Answer 9

4. Phosphate is released and binds to ADP to form ATP.

Question 10

5. What is the last process of active transport using carrier proteins?

Answer 10

The carrier protein returns to original shape.

Question 11

What is bulk transport?

Answer 11

process by which large substances (or bulk amounts of smaller substances) enter the cell without crossing the membrane.

Question 12

What is the transport of phagocytosis?

Answer 12

Solid

Question 13

What is the transport of pinocytosis?

Answer 13

Liquid