All of the following are true of the plasma membrane, except
A. it is selectively permeable to various substances, controlling which substances can cross the membrane.
B. the glycocalyx provides structural integrity to the plasma membrane.
C. charged or large molecules can sometimes enter a cell via membrane proteins.
D. it is mainly composed of a phospholipid bilayer.
E. transmembrane proteins may function as ion channels, enzymes, or receptors.
Answer: B
You might also like to view...
Before carbohydrates are absorbed, __________ digest disaccharides into monosaccharides.
a) pancreatic enzymes b) amylases c) bile salts d) brush border enzymes
What is a quick-release knot most often used for?
What will be an ideal response?
A "sensation" is any sensory information that reaches the brain
Indicate whether the statement is true or false.
For a blood pressure reading of 125/86, the 86 represents the
A. ventricular diastolic pressure. B. ventricular systolic pressure. C. atrial diastolic pressure. D. atrial systolic pressure.