A G protein is
A. a type of water-soluble hormone.
B. a second messenger activated by a steroid hormone.
C. a molecule that binds a guanine nucleotide and helps transduce a signal inside a target cell.
D. a receptor for a water-soluble hormone that causes arachidonic acid to be extracted from a phospholipid.
E. an enzyme that catalyzes the conversion of ATP into cyclic AMP.
C
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The Achilles and plantaris tendons insert onto the calcaneus.
Answer the following statement true (T) or false (F)
This disorder increases with age and is relatively common, with 50 percent of men between the ages of 40 and 70 having some degree of this disorder
A) Erectile dysfunction B) Melanoma C) Prostatitis D) Incontinence
If the results of ufo-epi treatment of humans included pupil dilation, localized sweating, high blood pressure, and high blood glucose, which conclusion would be indicated?
An alien retrieved alive from a crashed UFO has had a thorough medical examination. A hormone with a distinct but similar structure to epinephrine has been isolated, and named ufo-epi. A) It acts on muscarinic receptors. B) It acts on beta adrenergic receptors. C) It acts on alpha adrenergic receptors. D) It acts on AMPA receptors. E) It acts at the neuromuscular junction.
Which ganglia are associated with the parasympathetic division of the autonomic nervous system?
A. Basal B. Paravertebral C. Collateral D. Terminal