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bio review ch 4 SCC

Nucleic Acids

QuestionAnswer
what is the general structure of a nucleic acid? phosphate group, 5-carbon sugar, and nitrogenous base
what are the two types of nucleotides and where are they found? deoxyribonucleotides (found in DNA) and ribonucleotides (found in RNA)
what are the two types of nitrogenous bases? purines (adenine, guanine) and pyrimidines (thymine, uracil, and cytosine)
what type of bond is formed between nucleotides? phosphodiester bond
what is the structure of ATP? i nitrogenous base (sugar), with 3 phosphates
what is the function of ATP? creates energy for polymerization
what are the levels of DNA? primary structure (sequence of nucleotides), secondary structure (double helix- AT, GC)
what are the levels of RNA? primary structure (sequence of nucleotides), secondary structure (single strand- AU, GC), tertiary structure (complex 3-D shape)
what are the functions of DNA? stores and transmits biological info, carries info, serves as a template for new DNA stands
what is the function of RNA? act as an intermediate between DNA and proteins, also can act as an enzyme and have catalytic activity=ribozomes
describe the polymerization of nucleic acids involves condensation reactions, bonding forms between the hydroxyl (3'c) and phosphate group (5'c)sequence is read 5'c to 3'c, energy comes from nucleotides, and the three phosphates have negative charges which repel each other.
Created by: mtalbot
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