1 Which of the following lipids is negatively charged a PC b

1. Which of the following lipids is negatively charged?

a. PC

b. PS

c. PE

d. SPH

(i believe the answer is D but not sure)

7. Which of the following is not an example of an active transporter?

a) Na+ coupled glucose transporter

b) NaK pump

c) K+ channel

d) ATP-driven Ca2+ pump

8. The dynamics of lipid bilayers depend on

a) Temperature.

b) Lipid chemistry.

c) Bilayer composition.

d) All of the above.

9. In FRAP experiments, a faster fluorescence recovery implies a

a) Higher diffusion rate.

b) Lower diffusion rate.

c) Higher flip-flop rate.

d) Lower flip-flop rate.

1)PS is negatively charged lipid.(b)

Phospholipid contain a negatively charged phosphate group and glycerol,It is hydrophilic

7) K+ channel is not an active transporter.(c)

8)All of the above.(d)

Dynamics of lipid bilayers depend on

Temperature, Lipid chemistry, Bilayer composition.

9 )Higher diffusion rate.(a)

Fluorescence recovery after photobleaching (FRAP) is a method for determining the kinetics of diffusion through tissue or cells.