Active Transport is the Opposite of Diffusion Flashcards
1
Q
What is active transport?
A
The movement of particles against a conc gradient (from area of lower conc to higher conc) using energy released during respiration
2
Q
What is active transport used to do?
A
Move substances in and out of cells
3
Q
When is active transport used in the digestive system?
A
When there’s a low conc of nutrients in the gut, but a high conc on nutrients in blood
4
Q
What happens when there’s a higher conc of nutrients in the gut?
A
They diffuse naturally into the blood
5
Q
What does active transport need to make it work?
A
Energy from respiration
6
Q
How does active transport help us not starve?
A
It allows nutrients to be taken into blood, despite the conc gradient is the wrong way
