The citric acid cycle:
a. occurs in the mitochondria
b. produces pyruvic acid as an end product
c. occurs in the cytoplasm
d. both B and C above
a. occurs in the mitochondria
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The basis of neural integration is
A) spontaneous activity in pacemaker neurons. B) command signals from central pattern generators. C) addition of postsynaptic potentials overlapping in time and space. D) the area under the curve of postsynaptic potentials overlapping in time and space.
The advantage of shivering over other forms of muscle activity (like running) as a means of thermogenesis is
a. shivering increases ATP use and heat production without increasing heat loss due to convection. b. with shivering all the energy expended is released as heat since no work is done. c. shivering increases ATP use and heat production without increasing heat loss due to conduction. d. shivering increases ATP use and heat production without increasing heat loss by either convection or conduction. e. all of these.
Regarding kidney function, in reabsorption,
A) solutes enter the tubular fluid after exiting the peritubular fluid and crossing the tubular epithelium. B) water and solutes are transported from the tubular fluid, across the tubular, epithelium, and into the peritubular fluid. C) blood pressure forces water and solutes across the membranes of the glomerular capillaries and into the capsular space.
Which bone bears the greater and lesser cornua?
A. Incus B. Hyoid C. Stapes D. Maxilla E. Mandible