Membrane Transport

Question 1

Primary active transport

Answer 1

ATP consumed directly

Question 2

ATPase examples

Answer 2

Na/K pump/ATPase - 3 Na out, 2 K in
Ca ATPase
H/K ATPase

Question 3

Secondary active transport

Answer 3

Cotransport - symport (Na & glucose) or antiport (Na & H)
Often involve Na+, moving downhill
Indirectly uses ATP because of Na/K ATPase

Question 4

Glucose transport

Answer 4

Facilitated thru GLUT transporter
Secondary active vis SGLT (Na/glucose symport)

Question 5

Factors impacting simple diffusion

Answer 5

Membrane permeability
Area
Temperature
Viscosity
Radius of molecue
Thickness of membrane

Question 6

Facilitated diffusion

Answer 6

Uses carrier protein, limited number of bindings sites thus becomes saturated (unlike simple diffusion which is linear)