Cell transport: diffusion

Question 1

– All molecules are constantly in motion
– Molecules in solution move randomly
– Random motion causes mixing
– Concentration is the amount of solute in a solvent
– Concentration gradient
▪More solute in one part of a solvent than another

Answer 1

diffusion

Question 2

The amount of solute in a solevnt

Answer 2

concentration

Question 3

More solute in one part of a solvent than in another

Answer 3

concentration gradient

Question 4

all molecules are ____in motion

Answer 4

constantly

Question 5

molecules in solution move

Answer 5

randomly

Question 6

Factors Influencing Diffusion

Answer 6

• Distance the particle has to move
  Molecule size
  – Molecule Size
  ▪Smaller is faster

– Temperature’
▪More heat, faster motion

– Concentration gradient
▪The difference between high and low concentrations

Electrical forces
▪Opposites attract, like charges repel

Question 7

Molecule size

Answer 7

smaller is faster

Question 8

more heat, faster motion

Answer 8

temperature

Question 9

the difference between high and low concentrations

Answer 9

concentration gradient

Question 10

Electrical forces

Answer 10

opposites attract, like charges repel