What is the permeability barrier that joins the plasma membranes of adjacent cells to form a tight seal?
A. Desmosomes
B. Tight junction
C. Hemidesmosomes
D. Adhesion belt
E. Gap junction
Answer: B
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Cholesterol
A. must be obtained from plants. B. can be manufactured by most tissues. C. is a hormone. D. is necessary for blood clotting. E. has no constructive function in the body.
Match the phrase to either the sympathetic or parasympathetic division of the autonomic nervous system.Functions at rest
A. Sympathetic B. Parasympathetic
Which part of the inner ear houses two portions of the membranous labyrinth known as the utricle and saccule?
A) tympanic membrane B) cochlea C) semicircular canals D) vestibule
All of the following are examples of catabolic reactions EXCEPT
A. trypsin in the stomach digesting large proteins into smaller ones. B. synthesizing the enzyme maltase from amino acids. C. amylase in saliva breaking down starch into simple sugars. D. the release of energy by converting ATP into ADP during a metabolic reaction.