Movement Of Molecules

Question 1

Diffusion

Answer 1

The spreading of gasses widely. #When you spray deodorant in the air and it disperses in the air.

Question 2

Simple Diffusion

Answer 2

When small, non-polar (lipid soluble not soluble in water) molecules passes through a lipid bilayer.

Question 3

State the major fluid compartments in the body

Answer 3

1- Intracellular Fluid Compartments (ICF): Found in Cells.

2- Extracellular Fluid Compartment (ECF): Plasma and Interstitial Fluid (IF) (the fluid between the tissues).

Question 4

Facilitated Diffusion

Answer 4

Spontaneous passive transport of molecules through a membrane via integral proteins.

Question 5

Osmosis

Answer 5

When molecules pass from a less concentrated solution to a more concentrated one through a semi-permeable membrane.

Question 6

Active Transport

Answer 6

The movement of molecules or ions across a cell membrane into a region of higher concentration. Assisted by enzymes and requires energy.

Question 7

Endocytosis

Answer 7

When molecules are taken in by a cell through its membrane forming a vacuole around it.

Question 8

Exocytosis

Answer 8

When a cell throws waste material out of itself through a vacuole fusing with the cell membrane.

Question 9

Concentration Gradient

Answer 9

Is how fast the molecules diffuse across the membrane.