ATP

Why does the cell need ATP?

to absorb the maximum amount of nutrients from food, cell energy may be used to pump nutrients across cell membranes

ATP provides energy for this

How do cells get energy from ATP?

When ATP reacts with certain compounds, energy is released

What is active transport?

movement of molecules from an area of lower concentration to an area of high concentration, using carrier proteins & energy from ATP

How does the transport of glucose across the cell membranes take place?

cells from the small intestine absorb the Glucose against the concentration gradient.

The intestinal cells have protein carriers in their cells membrane, and this is used to transport glucose.