Which one of the following is the most common energy "currency" for a cell?

A. ATP
B. DNA
C. glucose
D. protein
E. NADH


Answer Key: A

Biology & Microbiology

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On the outer surface of the plasma membrane there are marker molecules that identify the cell type. Often these molecules are  

A.  ATP. B.  amino acids. C.  nucleotides. D.  carbohydrate chains. E.  inorganic ions.

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In female mammals, germ cells

A. are not produced until puberty. B. are arrested in meiosis I until puberty. C. develop into fully mature gametes before birth. D. are arrested in meiosis II until puberty.E. are arrested in mitosis until puberty.

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The majority of DNA in a cell that has undergone differentiation is _____

a. transcribed b. translated c. turned off d. mutated e. hydrolyzed

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Langerhan Cells play an important role in the induction of the adaptive immune system by presenting the antigen to the adaptive immune system's cells.

a. true b. false

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