The release of insulin from pancreatic cells occurs by
A. endocytosis.
B. pinocytosis.
C. phagocytosis.
D. exocytosis.
E. receptor-mediated endocytosis.
D. exocytosis.
Biology & Microbiology
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German measles is caused by the ________ virus.
A. coxsackievirus A B. herpes-zoster C. reovirus D. rubella
Biology & Microbiology
Which type of receptor is a glycine-gated Cl- channel?
A. Adrenergic B. Ionotropic C. Muscarinic D. Nicotinic E. Metabotropic
Biology & Microbiology
A nerve impulse does not vary in intensity with regard to the strength of the stimulus. What do we call this phenomenon?
A) resting membrane potential B) refractory period C) all-or-nothing principle D) graded response
Biology & Microbiology
Regarding megafaunal extinctions, it is assumed that the driving factor was
A. climate change. B. rising sea levels. C. a meteorite. D. the Ice Age. E. Homo sapiens.
Biology & Microbiology