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Nucleotide: Quiz


Question 1: A nucleotide is composed of a nucleobase (nitrogenous base), a five-carbon sugar (either ribose or 2'-deoxyribose), and one to three ________ groups.
PhosphorusPhosphateAdenosine triphosphatePhosphate homeostasis

Question 2: In addition, nucleotides play central roles in ________.
Amino acidLipid metabolism3-hydroxy-3-methylglutaryl-CoA lyaseMetabolism

Question 3: PRPS1 is the ________ that activates R5P, which is primarily formed by the pentose phosphate pathway, to PRPP by reacting it with ATP.
EnzymeCofactor (biochemistry)Enzyme inhibitorProtein

Question 4: ________ uses uracil in place of thymine.
Non-coding RNASmall interfering RNADNARNA

Question 5: In ________, the purine bases are adenine and guanine, while the pyrimidines are thymine and cytosine.

Question 6: Nucleotides are molecules that, when joined together, make up the structural units of RNA and ________.


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