Active Transport

Question 1

What does active transport use to move molecules and ions across the plasma membrane, what way does it move

Answer 1

Energy (usually against the concentration gradient)

Question 2

How are carrier proteins used in active transport

Answer 2

A molecule attached to the carrier protein and changes shape and this moves the molecule across the cell membrane

Question 3

What are the main differences between active transport and facilitated diffusion

Answer 3

•Active transport moves solutes from a low to high concentration, opposite for facilitated diffusion
•Active transport requires energy

Question 4

Where does active transport get energy