What is the term used to describe the energy needed to get a reaction started?
a) adhesion energy
b) activation energy
c) chemical reaction
d) dissolving
Ans: b) activation energy
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When the anticodon of a tRNA and the codon of an mRNA interact, the two sequences are
A) identical. B) antiparallel. C) parallel. D) not related.
The lactose repressor
A. is transcribed with the structural lac genes. B. is inactivated by binding lactose. C. requires lactose for its transcription. D. is activated by binding lactose.
What do free radicals do?
a. improve the efficiency of aerobic respiration b. act as coenzymes in glycolysis c. damage biological molecules d. removes metals that combine with oxygen gas e. more than one of these
A reaction with a negative value of ?G is referred to as an __________ reaction
a. endergonic b. entropy c. exergonic d. enthalpy e. activation