Movement of substances into and out of Cells

Question 1

Active Transport

Answer 1

The movement of substances from a more diluted solution to a more concentrated solution (against the concentration) with the use of energy from respiration.

Question 2

Concentration gradient

Answer 2

The difference in concentration between two areas.

Question 3

Diffusion

Answer 3

The spreading out of particles in solution, or particles of a gas, resulting in a net movement from an area of higher concentration to an area of lower concentration (Down the concentration gradient)

Question 4

Osmosis

Answer 4

The diffusion of water molecules from a more dilute solution to a more concentrated solution across a partially permeable membrane

Question 5

Surface Area to Volume Ratio (SA:V)

Answer 5

The size of object compared with the amount of area that contacts the enviornment.