Osmosis

Question 1

Osmosis

Answer 1

It is the movement of water from a dilute to a more concentrated solute solution through a partially permeable membrane that allows water to pass through. Transport of water from high to low concentration, down a concentration gradient.

Question 2

Turgid

Answer 2

A plant cell fully inflated by the water.

Question 3

Diffusion

Answer 3

Diffusion takes place when particles can move from a higher concentration to a lower concentration.

Question 4

Partially permeable membrane

Answer 4

A membrane that lets some particles through.

Question 5

Concentration

Answer 5

Sugar dissolved in water is an example of a solution. Sugar is the solute and water is the solvent.

Question 6

Concentation 1

Answer 6

Concentration is a measurement of how much solute is dissolved in a given volume of solvent. If a solution contains a lot of dissolved solute, we say it is concentrated. If it contains little solute, it is dilute.

Question 7

Concentration 2

Answer 7

Particles will move from an area of HIGH concentration to an area of LOW concentration.

Question 8

Rates of diffusion

Answer 8

Factors that increase the rate of diffusion include:

1. Concentration gradient: The bigger the difference in concentration, the faster diffusion will be.

Question 9

Rates of diffusion 1

Answer 9

2. Temperature: The warmer the fluid, the faster diffusion will be.

Question 10

Rates of diffusion 2

Answer 10

3. The surface area of the exchange surface: When the surface area is larger, diffusion will be faster.

Question 11

Rates of diffusion 3

Answer 11

4. The distance the molecules must diffuse: If the molecules have to travel a shorter distance, diffusion will be faster.

Question 12

Isotonic

Answer 12

If the concentration of solutes in the solution outside the cell is the same as the internal concentration, the solution is istonic to the cell. Isotonic=2 solutions, same concentration.

Question 13

Hypertonic

Answer 13

If the concentration of solutes in the solution outside the cell is higher than the internal concentration, the solution is hypertonic to the cell. Hypertonic=2 solutions, the stronger one is hypertonic.

Question 14

Plasmolysis

Answer 14

If more water is lost by osmosis, the vacuole and cytoplasm shrink, and eventually the cell membrane pulls away from the cell wall, this is called plasmolysis. Water loss from plant cell, the vacuole shrinks, and membrane pulls away from cell wall.

Question 15

Crenation

Answer 15

Shrinking an animal cell by osmosis