Chemical synapses are distinctive for all of the following EXCEPT

a. they require the use of ligand-gated ion channels.
b. they require the use of voltage-gated ion channels.
c. they may utilize direct neurotransmitters.
d. they require the use of vesicles.
e. they require proteins.


E

Biology & Microbiology

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a. decreases the size of the lumen of arteries. b. effects the diameter of veins. c. has no effect on the size of the lumen of arteries. d. increases the size of the lumen of arteries. e. presents many clinical symptoms immediately.

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Virus morphology does not include which of the following characteristics?

A. Shape B. Presence or absence of an envelope C. Size D. Host range

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Each NADH that enters the electron transport system results in the production of ________ ATPs.

A. 3 B. 36 C. 38 D. 2 E. 24

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It is believed that eukaryotes evolved their mitochondria from a symbiotic relationship with a free-living aerobic bacteria. 

Answer the following statement true (T) or false (F)

Biology & Microbiology