(2) Bio SL B2.1 - quiz revision Q2

B2.1.6/ Facilitated diffusion is:

Passive movement of particles from high concentration to low concentration through protein channels

B2.1.7/ Active transport is:

The movement of particles from low concentration to high concentration (needs energy)

B2.1.7/ Active transport requires a:

Protein pump

B2.1.7/ Protein pumps move:

Only move particles one way

B2.1.7/ Is active transport specialized?

Yes

B2.1.6/ Is facilitated diffusion specialized?

Yes

B2.1.8/ What makes them selective?

Protein channels, protein pumps, structure of the lipid bilayer

B2.1.9/ Glycoproteins are:

Proteins that are embedded in the membrane

B2.1.9/ What do glycoproteins contain?

Carbohydrate chain that is extended outside

B2.1.9/ What are glycoproteins important for?

Recognition and joining cells together

B2.1.9/ What are glycolipids?

A lipid that is embedded in the hydrophilic tails with a carbohydrate chain extending outside

B2.1.9/ What are glycolipids particular to?

Eukaryotes and recognition