Each NADH produced in the cytoplasm by
glycolysis yields how many molecules of ATP if it
is used in electron transfer phosphorylation in
liver, heart, or kidney cells?
a. 2
b. 3
c. 4
d. 6
e. either 2 or 3
Answer: b
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Based on the phylogenetic tree shown, to which of the following groups listed below is a bird most closely related?
A. turtle and snake B. human C. snake only D. frog E. turtle only
The interior of a neuron is more negative than the outside due to the presence of:
A. proteins. B. hydroxyl (OH–) groups. C. chloride ions. D. both proteins and chloride ions.
Which lineage includes living members that are sharks, skates, and rays?
a. Sarcopterygii b. Actinopterygii c. Petromyzontoidea d. Chondrichthyes
Stanley Miller's experiments were significant because he demonstrated that _____.
A. the behavior of any molecule containing a carbon atom was fundamentally the same B. under certain circumstances the theory of vitalism was valid C. a variety of simple organic compounds could be spontaneously synthesized from components in Earth's primitive atmosphere D. lightning discharges could produce the molecules previously presumed to have originated in volcanic outgassings E. urea could be synthesized from entirely naturally occurring salts