Thermogenin is
a. found in certain mitochondria
b. found in brown fat
c. an uncoupling protein
d. disconnects the electron transport system from ATP synthesis
e. all of the above
E
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Which is characteristic of cross bridges?
a. they are a component of thick filaments. b. they are comprised of actin c. they have an troponin binding site. d. they attach to Z lines e. they allow shortening of the muscle proteins
Why does a high fever cause death?
A. High fever clots the blood B. High fever denatures critical enzymes C. High fever drastically changes blood pH D. High fever short circuits the heart
Under which of the following conditions do cell volumes not change and the osmolarity in both extracellular and intracellular fluids remain the same?
A) hypovolemia B) osmotic equilibrium C) hypervolemia D) hypotonicity E) hypertonicity
Sweat cools the body by
A) radiation. B) evaporation. C) conduction. D) convection.