Transport

Question 1

How does co transport work?

Answer 1

Sodium potassium pump actively transports Na into the blood
This lowers the Na concentration in the cell.
Na from the ileum transports into the cell alongside glucose through a cotransporter.
Glucose uses facilitated diffusion to enter the blood.

Question 2

What are the 5 methods of transport?

Answer 2

Co transport
Diffusion
Facilitated diffusion
Osmosis
Active transport

Question 3

What is the water potential of pure water?

Answer 3

0

Question 4

What is diffusion?

Answer 4

The net movement of molecules from an area of high concentration to low concentration

Question 5

What is facilitated diffusion?

Answer 5

Enables large and charged molecules to diffuse in and out of cells with the aid of intrinsic proteins

Question 6

What is osmosis?

Answer 6

The net movement of water molecules from a high water potential to low water potential through a partially permeable membrane.

Question 7

What is active transport?

Answer 7

Movement of molecules from an area of low concentration to high concentration using ATP and carrier proteins

Question 8

What does it mean by isotonic?

Answer 8

Same water potential outside the cell as inside.
No net osmosis

Question 9

What is meant by hypertonic?

Answer 9

There is a lower water potential outside the cell than inside.
Net osmosis out of the cell.

Question 10

What is meant by hypotonic?

Answer 10

There is a higher water potential outside the cell than inside.
Net osmosis into the cell.