Lecture 15 - Solute Transport 1

Question 1

types of transporters across membranes

Answer 1

symporter
antiporter
channels
H+ pump

Question 2

diffusion

Answer 2

movement of individual molecules of a substance from a area of high concentration (high chem potential) to an area of lower concentration (low chem potential)

Question 3

facilitated diffusion

Answer 3

i interacts with a molecule in the membrane too permit is passive diffusion down its chemical potential gradient

Question 4

what is facilitated diffusion limited by

Answer 4

the limited number of proteins as they are saturated at high concentrations

Question 5

steps of facilitated diffusion

Answer 5

1. Initial condition
2. Facilitated diffusion
3. Equilibrium condition
4. Non-equilibrium condition

Question 6

what is glucose permease

Answer 6

glucose transporter

Question 7

where is the plastid glucose transporter located

Answer 7

located in chloroplast inner envelope

Question 8

what does Triose-phosphate/phosphate translocator do

Answer 8

mediates a passive counter-exchange of Pi and Triose phosphate