Which of the following correctly describes a graded potential?
A) it has a depolarization, repolarization and hyperpolarization phase
B) it can have amplitudes of various sizes
C) it is initiated by voltage changes in the membrane
D) it travels long distances
B
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How many ATP would be formed from an 18-carbon fatty acid?
A. 60 B. 32 C. 90 D. 122
Although small quantities of lipids are normally stored in the liver, most of the synthesized triglycerides are bound to __________.
a. hepatocytes in the liver b. transport proteins c. glucose molecules d. adipocytes
During an asthma attack, the patient usually finds it most difficult to
A) expand the lungs. B) inhale. C) contract the respiratory muscles. D) exhale.
Atropine is sometimes used to dilate the pupil for an eye examination. Which receptor would atropine block?
A) Muscarinic receptor B) Alpha 2 adrenergic receptor C) Beta receptor D) Nicotinic receptor E) Alpha 1 adrenergic receptor