Enkephalins and endorphins are
a. neuromodulators.
b. stimulators of brain and nervous activity.
c. inhibitors of pain perception.
d. neuromodulators and stimulators of brain
and nervous activity.
e. neuromodulators and inhibitors of pain
perception.
E
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When mitochondria pass electrons donated by NADH through the electron transport chain to molecular oxygen, a theoretical maximum of ________ molecules of ATP can be made per oxygen molecule reduced.
Fill in the blank(s) with the appropriate word(s).
Fever developed as part of a viral infection is the result of:
A. cytokines. B. histamines. C. the complement system. D. Both cytokines and histamines.
To control the cell cycle:a
the activity of Cdks stays the same throughout the cell cycle. b. cyclins fluctuate during the cell cycle. c. Cdks are active only when they are released from cyclins. d. the anaphase-promoting complex stimulates DNA replication. e. M-Cdk inhibits mitosis.
A normal inhabitant of the vaginal tract that causes "yeast infections" under certain circumstances is Saccharomyces.
Answer the following statement true (T) or false (F)