10 Questions
Which molecules are essential for the production of ribonucleic acid (RNA) and deoxyribonucleic acid (DNA)?
Nucleotides
What is the primary role of nucleotides in the synthesis of carbohydrates, lipids, and conjugated proteins?
Energy carriers
Which nucleotides function as second messengers in signal transduction pathways?
cAMP and cGMP
What is the significance of nucleotides in cellular metabolism?
Act as energy currency
How can purine and pyrimidine bases be acquired for nucleotide synthesis?
Both salvage pathways and de novo synthesis
What is the composition of nucleotides?
A nitrogenous base, a pentose monosaccharide, and three phosphate groups
Which nitrogen-containing bases are common to both DNA and RNA?
Guanine (G) and Cytosine (C)
How do DNA and RNA differ in their pyrimidine bases?
DNA contains cytosine (C) while RNA contains uracil (U)
What is the major difference between thymine (T) and uracil (U)?
Thymine has a methyl group while uracil does not
What is formed when a pentose sugar is added to a base through a glycosidic bond?
Nucleoside
Discover the importance of ribonucleoside and deoxyribonucleoside phosphates in cell biology. Learn how these nucleotides are essential for RNA and DNA production, protein synthesis, and cell proliferation, as well as their role as carriers of activated intermediates in various cellular processes.
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