You are an airborne molecule that dissolves in the fluid covering the olfactory epithelium. Which of the following must you do in order to depolarize neurons in the olfactory epithelium?
A. stimulate mitral cells
B. release acetylcholine
C. cause proliferation of basal cells
D. bind to receptor molecules on the olfactory hair membrane
E. lower the threshold of the cell
D
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All but which one of the following compounds is an invertebrate phosphogen?
A) Phosphoarginine B) Phosphocreatine C) Phosphoglycocyamine D) Phospholambricine
Which statement about insulin is correct?
a. It promotes the insertion of additional glucose transporters in the plasma membranes of insulin-dependent cells b. It promotes glycogenesis and inhibits glycogenolysis c. Its secretion is increased in response to a fall in blood glucose concentration d. Both a and b e. Both a and c
The genotype WW is best described as ________.
A. homozygous recessive B. heterozygous dominant C. heterozygous recessive D. homozygous dominant E. homorecessive
Which of the following is a function of synovial fluid?
a. lubricates the joint b. provides nutrients for the articular cartilage c. absorbs shock within the joint d. All of these are correct.