Once the stored ATP is consumed, what
substance will muscles turn to for energy?
a. glucose
b. lactate
c. sugar
d. creatine phosphate
e. myoglobin
D
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HIV studies revealed that it is closely related to
A. smallpox virus. B. ebola virus. C. herpes virus. D. a chimpanzee virus. E. mad cow disease.
What is directly responsible for pumping protons out of the matrix in the mitochondria?
a. protein complexes I, II, III, and IV b. cytochrome c and ubiquinone c. protein complexes I and III d. protein complexes I, III, and IV e. NADH and FADH2
A process common to all living organisms, aerobic and anaerobic, is
glycolysis. fermentation. the Krebs cycle. electron transport chain reactions. pyruvate oxidation.
Neurotransmitters that open Na+ channels and trigger action potentials in receiving cells are called
A) inhibitory. B) excitatory. C) sympathetic. D) parasympathetic.