Multiple Choice
Which of the following is TRUE of phospholipids that flip-flop across the lipid bilayer?
A) The process requires energy.
B) The process occurs spontaneously, requiring no energy.
C) The process requires an enzyme called flippase.
D) The process requires energy and the flippase enzyme.
E) The process occurs spontaneously and requires the flippase enzyme.
Correct Answer:

Verified
Correct Answer:
Verified
Q2: Animal cells are permeable to water and
Q3: The Na<sup>+</sup>/K<sup>+</sup>-ATPase pump is a ligand-gated ion
Q4: Which of the following organisms is likely
Q5: Membrane proteins are attached to or embedded
Q6: The statements about transport of Ca<sup>2+</sup> from
Q8: Which of the following statements is CORRECT
Q9: Animal cells are permeable to water and
Q10: Plant cell membranes contain cholesterol.
Q11: Cellular membranes are<br>A) fluid.<br>B) solely composed of
Q12: Which of the following is NOT a