Movement in and out of cells Flashcards
1
Q
What are the three types of movement in the cell?
A
Diffusion
Osmosis
Active transport
1
Q
What is diffusion?
A
Diffusion is the random movement of particles from a region of high concentration to a region of low concentration.
2
Q
How does diffusion move?
A
Down the concentration gradient!
3
Q
Where does osmosis occur?
A
In water
4
Q
What is osmosis?
A
Osmosis is the movement of particles from region of high-water to region of low-water across a partially-permeable membrane
5
Q
What is a polar substance?
A
A polar substance is a molecule with charge
6
Q
What is active transport?
A
Active transport is the movement of substances from an area of low concentration to high concentration
7
Q
What does active transport need?
A
It needs energy
8
Q
How is some energy lost during respiration
A
Through heat
