Which of the following is never catabolized for energy, even in cells dying of starvation?
A) DNA
B) proteins
C) rRNA
D) tRNA
E) mRNA
A) DNA
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During the time when the action potential moves through the sarcolemma a muscle twitch is in
A) contraction phase. B) relaxation phase. C) stimulus phase. D) latent period. E) isotonic period.
Blood type is an example of a trait that demonstrates
A. polygenic dominance. B. sex-linked recessiveness. C. incomplete dominance. D. strict Mendelian inheritance. E. codominant inheritance.
Which of the following is the correct order for the phases of deglutition?
A. Pharyngeal, voluntary, esophageal B. Voluntary, pharyngeal, esophageal C. Esophageal, pharyngeal, voluntary D. Voluntary, esophageal, pharyngeal
The class of glycoproteins which bind to components in the extracellular matrix, thereby acting as adhesion molecules between cells and the matrix are called ________.
A. glycocalyces B. desmosomes C. aquaporins D. integrins