Why does diffusion occur?

1
Why does diffusion occur?
2
Kinetic energy causes molecules to constantly
move and collide with each other.
3
What is the movement from an area of high
concentration to an area of low concentration?
4
Diffusion
5
Give the type of particle transport that requires
input of energy from the cell.
6
Active Transport
7
What happens to cells placed in a hypertonic
solution?
8
They shrink due to losing water by osmosis
9
Which parts will be near water because they are
hydrophilic?
10
Part labeled APolar heads of the phospholipids
11
Which parts will repel water because they are
hydrophobic?
12
Part E Non Polar Tails of phospholipids
13
When the concentrations across a cell membrane
are the same Does Osmosis occur?
14
No. Because the cell is at equilibrium in a state
of homeostasis
15
Are cholesterol and phospholipids hydrophobic or
hydrophilic?
16
Hydrophobic.Both are repelled by water.
17
What is osmosis?
18
The diffusion of water
19
What happens to a cell that is placed in a
hypotonic solution?
20
It swells up
21
What structure serves as the cells boundary from
its environmentand regulates which materials
enter and leave the cell?
22
Cell Membrane
23
Large molecules such as hormones are released or
expelled from a cell during?
24
Exocytosis
25
What happens if too much water diffuses into a
cell?
26
It may burst
27
What is an example of passive transport?
28
Diffusion
29
What is passive transport?
30
Cell transport that requires no energy from the
cell
31
What is the movement of molecules down a
concentration gradient across the cell membrane?
32
Diffusion
33
What is the difference in the concentration of
dissolved particles from one location to another
is called?
34
Concentration Gradient