Nucleotide structure

Cards (12)

what is a nucleotide?
monomer of nucleic acid comprising a pentose sugar, a nitrogenous base and a phosphate group
what are nucleic acids?
they are polymers, made of monomers called nucleotides
what is a polynucleotide?
a molecule containing many nucleotides
how long are polynucleotides?
they may be millions of nucleotides long
what are the components of a nucleotide combined by?
by condensation reactions
what are the component of a nucleotide?
a phosphate group (has the same structure in all nucleotides)
a pentose sugar (the pentose is ribose in RNA and deoxyribose in DNA)
an organic base (sometimes called a nitrogenous base)
what are the 2 groups of organic bases?
the pyrimidine bases (thymine, cytosine, uracil)
the purine bases (adenine and guanine)
what are pyrimidine bases?
class of nitrogenous bases including thymine, cytosine and uracil
what are purine bases?
class of nitrogenous bases including adenine and guanine
what is this an image of?
the structure of a nucleotide
what is this an image of?
a pyrimidine skeleton
what is this an image of?
a purine skeleton