Glycolysis is best defined as a catabolic reaction based upon the
conversion of glucose into carbon dioxide and water
formation of sugar
conversion of glucose into two molecules of pyruvic acid
conversion of pyruvic acid into carbon dioxide and water
The Correct Answer is C
A. conversion of glucose into carbon dioxide and water: This describes the complete process of cellular respiration, including the Krebs cycle and electron transport chain, not glycolysis.
B. formation of sugar: Glycolysis does not form sugar; it breaks down glucose molecules into smaller intermediates to release energy.
C. conversion of glucose into two molecules of pyruvic acid: Glycolysis involves the breakdown of one glucose molecule (6 carbons) into two pyruvic acid molecules (3 carbons each). This catabolic process releases a small amount of ATP and NADH.
D. conversion of pyruvic acid into carbon dioxide and water: This occurs during the later stages of cellular respiration, specifically the Krebs cycle and oxidative phosphorylation, rather than during glycolysis itself.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. TCG:DNA contains thymine (T) instead of uracil (U), and transcription involves RNA pairing, not direct DNA-tRNA pairing. TCG in DNA does not directly base-pair with tRNA during translation.
B. AUG:AUG is a codon on mRNA that codes for methionine and serves as the start codon. tRNA with an AGC anticodon would not pair with AUG.
C. UGA:UGA is a stop codon on mRNA. An AGC anticodon cannot base-pair with a stop codon, as stop codons do not correspond to tRNA anticodons.
D. UCG:The tRNA anticodon AGC is complementary to the mRNA codon UCG. Base pairing occurs via A-U and G-C hydrogen bonds, allowing proper amino acid incorporation during translation.
Correct Answer is A
Explanation
A. axillary and pubic areas:Apocrine glands are concentrated in the axillae, areolae, and pubic regions. They become active during puberty and release a thicker secretion that can produce body odor when decomposed by bacteria.
B. soles of the feet:The soles contain numerous eccrine sweat glands, which function in thermoregulation, but apocrine glands are not typically found here.
C. palms of the hands:Like the soles, the palms are rich in eccrine sweat glands for cooling, but they lack apocrine glands.
D. both A and B:Apocrine glands are not present in the soles of the feet, only in axillary and pubic regions.
E. both B and C:Neither the soles nor the palms contain apocrine glands; they only have eccrine sweat glands.
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