Movement In And Out Of Cells

Question 1

Examples of materials which go in and out of cells

Answer 1

Water, carbon dioxide and oxygen through diffusion

Question 2

What does the cell membrane do in terms of letting things pass through it?

Answer 2

It allows small, uncharged particles through but its selective for all other molecules and this makes the internal environment of the cell different from the outside.

Question 3

Describe the concentration gradient and what it includes

Answer 3

Simple diffusion, facilitated diffusion, osmosis, active transport, endocytosis and exocytosis.

Question 4

What can the word vesicle or vacuole be used as a reference for?

Answer 4

Endocytosis

Question 5

What can exocytosis and endocytosis be described as?

Answer 5

Active processes, but the term active transport is reserved for transport through a protein pump/protein through the cell membrane against the concentration gradient