Newly synthesized membrane lipids are found in both halves of membrane bilayers because they are
a. synthesized on both surfaces.
b. removed and transported to these locations by lipid transport proteins.
c. synthesized on one surface and flip spontaneously to the other surface.
d. synthesized on one surface and flipped to the other surface by proteins called flippases.
Answer: d. synthesized on one surface and flipped to the other surface by proteins called flippases.
You might also like to view...
The technique for releasing hatchery-reared juvenile salmon into the wild, as seen here, is called:
1.backing down
2.tumble culture
3.raft culture
4.ocean ranching
Which two of the following are both inflammatory diseases of the nervous system?
a. epilepsy and concussion b. multiple sclerosis and meningitis c. meningitis and encephalitis d. Alzheimer's and encephalitis e. Parkinson's and Alzheimer's
Some people eat more because they have larger ___________ responses to the sight or smell of food.
(a) fasting-phase (b) cephalic-phase (c) absorptive-phase (d) gastric-phase
Which of the following would be an example of sexual selection?
A. a sex ratio of 5 females to 1 male B. females avoid aggressive males C. male deer with poor eyesight are more often killed by accidents D. well-nourished females produce more offspring