Active Transport

Question 1

What is Active Transport?

Answer 1

The movement of molecules across a cell membrane, from a region of lower concentration to a region of higher concentration, and requiring energy from cellular respiration.

Question 2

The process of active transport requires energy from the cell. What is the term for this?

Answer 2

It is an Active Process.

Question 3

Where does active transport always take place? What does it require?

Answer 3

Active transport always takes place across a membrane, and it requires special proteins that sit in the membrane and transfer the molecule from one side to the other.

Question 4

Where does the energy for active transport come from?

Answer 4

Cellular Respiration

This is a process that happens mainly in the mitochondria, when they break down glucose to release energy.

This process is responsible for all the energy that the cell uses. This energy is stored in little molecules called ATP. They take the energy from the mitochondria to the different parts of the cell that need it.

Question 5

How do root hair cells use active transport?

Answer 5

Root hair cells use active transport to absorb mineral ions, and are adapted for that role by having a large surface area and lots of mitochondria.