What happens in oxidation-reduction (redox) reactions?
A) Atoms are exchanged.
B) Energy is used since these are endergonic reactions.
C) Electron exchange occurs.
D) Larger molecules are built from smaller subunits.
Answer: C
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A low platelet count is referred to as __________.
Fill in the blank(s) with the appropriate word(s).
A functional syncytium
a. is a pair of antagonistic muscles causing a joint to move in opposite directions b. is able to contract as a unit because action potentials move between adjacent cells through gap junctions c. is a functional junction between a smooth muscle fiber and an autonomic nerve ending d. is all of the above e. is none of the above
What detects changes inside and around the body?
A) nerves B) sensory receptors C) effectors D) action potentials
Hydrochloric acid is a:
A) hydrogen ion acceptor. B) proton acceptor. C) hydrogen ion donor. D) hydroxide ion donor.