The reaction phosphoenolpyruvate + ADP ? pyruvate + ATP (? G = -7.5 kcal/mole)
A. is not spontaneous.
B. involves the transfer of a phosphate to phosphoenolpyruvate.
C. involves the transfer of energy from ATP to phosphoenolpyruvate.
D. is an endergonic reaction.
E. is an exergonic reaction.
E. is an exergonic reaction.
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The human genome is different for every individual
A. true B. false
Which of the following are typically osmoconformers?
a. freshwater teleost fishes b. sharks c. birds d. marine teleost fishes e. freshwater invertebrates
Microtubules and microfilaments are similar with respect to each of the following except
A) inherent polarity of the structure. B) localization similar to that of intermediate filaments in cells. C) association with motor proteins. D) plus and minus ends for polymerization. E) both are polymers of subunits.
When a muscle is stimulated prior to full relaxation of a previous contraction and the second stimulus is added to the first contraction, this phenomenon is referred to as ________
A) summation B) twitch C) fatigue D) tetanus