When a glucose molecule loses a hydrogen atom as the result of an oxidation-reduction reaction, the molecule becomes _____
A) hydrolyzed
B) hydrogenated
C) oxidized
D) reduced
E) an oxidizing agent
Answer: C
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Freshwater fishes deal with the osmotic stress of living in hypoosmotic conditions in part by ____
a. active transport of ions into the body through the gills b. excreting nitrogenous wastes through their kidneys as urea c. active transport of ions out of the body by chloride cells d. excreting excess salt through the actions of specialized salt glands in their heads e. maintaining high levels of urea and trimethylamine oxide in body fluids
A couple in which the woman is homozygous dominant and the man has hemophilia A will produce:a
carrier daughters and affected sons. b. affected daughters and affected sons. c. carrier daughters and normal sons. d. normal daughters and normal sons. e. offspring of unknown genotype for this gene.
When RNA-dependent RNA polymerase is synthesizing mRNA it is functioning as a ________.
A. helicase B. replicase C. transcriptase D. ligase
In the description of homeostasis, the term dynamic constancy refers to
A) a disregarded theory that suggested there were no external energy requirements to maintain cell homeostasis. B) a constant movement toward equilibrium. C) the direct interaction of each positive feedback system with its corresponding negative feedback system. D) the use of ATP to initiate a cascade effect. E) the fact that even though physical and chemical changes do occur, conditions are kept within a range.