Module 1

Question 1

The purpose of transport

Answer 1

To move substances in and out of the cell either actively or passively

Question 2

Diffusion

Answer 2

The movement of a substance from an area of high to low concentration

Question 3

Facilitated diffusion

Answer 3

Channel proteins helping large substances cross the cell membrane

Question 4

Osmosis

Answer 4

A form of diffusion involving water and a semi permeable membrane. Moves from low to high solute concentration

Question 5

Active transport

Answer 5

Pumps solutes against a concentration gradient through ATP

Question 6

Endocytosis

Answer 6

Cell takes in materials via the cell membrane

Question 7

Exocytosis

Answer 7

Cell moves materials out via the cell membrane. Through intracellular vesicles fusing with the membrane

Question 8

Prokaryotes

Answer 8

Small, low complexity cells which do not have membrane bound organelles

Question 9

Example: Prokaryote

Answer 9

Bacteria and archea

Question 10

Eukaryotes

Answer 10

Large, compartmentalised multicellular organisms.

Question 11

Example: Eukaryotes

Answer 11

Animals, plants and fungi

Question 12

Cell membrane

Answer 12

A semi permeable organelle forming a barrier around the cell

Question 13

SA:V ratio

Answer 13

As a cell grows, the volume increases faster than the surface area