Movement Of Particles

Question 0

What does diffusion move?

Answer 0

Oxygen
Nutrients
Waste products
(Any moving particle)

Question 1

Diffusion

Answer 1

The net movement of particles from a region of high concentration to an an area of low concentration going down the concentration gradient.

Question 2

Osmosis

Answer 2

The net movement of water particles from an area of high water concentration (dilute) to an area of low water concentration (concentrated) across a relatively partially membrane down the concentration gradient.

Question 3

Active transport

Answer 3

The net movement of particles against a concentration gradient using energy across a partially permeable membrane

Question 4

Examples of active transport

Answer 4

Root hair cells
Sugar low in intestines
Sugar low kidney tubules

Question 5

Isotonic

Answer 5

Same concentration

Cells stay the same, no osmosis

Question 6

Hypotonic

Answer 6

More dilute (more water less solute)
Cell bursts
(Turgid in plant cells)

Question 7

Hypertonic

Answer 7

More concentrated (more solute and less water)
Cell will shrink
(Plasmolysis in plant cells)

Question 8

Turgor

Answer 8

The pressure of water inside the cell

Question 9

Plasmolysis

Answer 9

When all the water has gone from the cell

Question 10

Features of a good exchange surface

Answer 10

Large SA
Short diffusion path
Good transport system