Plasma membrane phospholipids

A. are arranged in a single layer.
B. have polar (charged) tails.
C. are 95% cholesterol.
D. have tails that face the exterior of the membrane.
E. have a hydrophilic head and hydrophobic tails.


Answer: E

Anatomy & Physiology

You might also like to view...

What is the function of the serous membranes?

What will be an ideal response?

Anatomy & Physiology

Without the positive selection process in lymphocyte maturation ________

A) NK cells would be non-functional B) monocytes would not be able to migrate into infected tissue and differentiate into macrophages C) T-cells would not be able to properly bind to APC's and therefore not be activated by them D) autoimmune diseases would be likely to result

Anatomy & Physiology

If a human cell is placed into solution X, containing water and a nonpenetrating solute, then

a. water will diffuse into solution X until the cytosol and solution X are isotonic. b. water will diffuse across the membrane until a state of equilibrium is established. c. water will diffuse into the cell until stopped by an opposing hydrostatic pressure in the cytosol. d. neither the cell nor solution X will experience a net gain of water. e. it is not possible to predict what will happen.

Anatomy & Physiology

What would be the effect of cutting the fallopian tubes at their midpoints?

A. Sperm would not travel from the testes to the epididymides. B. Estrogen would not enter the bloodstream. C. The Wolffian duct system would be disconnected from the rest of the reproduction system. D. Ova would not travel from the ovaries to the uterus. E. Sperm would not travel from the vagina to the uterus.

Anatomy & Physiology