Passive and Active Transport

Question 1

what are the particle theory of matters?

Answer 1

1. all matter consists of extremely small particles
2. all particles of one substance are identical
3. the spaces between particles are very large compared to the size of the particles themselves.
4. the particles in matter attract one another.
5. all particles of matter are constantly in motion

Question 2

Brownian motion

Answer 2

all particles in the universe are in constant and random motion
since the particles are in constant motion they have a tendency to travel towards areas of low concentration

Question 3

what is an example

since the particles are in constant motion they have a tendency to travel towards areas of low concentration

Answer 3

a tea bag in hot water

Question 4

concentration gradients

Answer 4

in the way the particles are travelling down a concentration gradient moving from high concentration to low concentration