Nucleotides

• what are nucleic acids

  polymers
• what monomers make up nucleic acids

  nucleotides
• what are the 3 parts that make up nucleotides

  • a phosphate group
  • a pentose sugar (deoxyribose or ribose)
  • organic nitrogenous base
• what are the 3 parts combined by

  a condensation reaction
• what are the 2 different pentose sugars u can have

  • deoxyribose sugar
  • ribose sugar
• what differs a a deoxyribose to a ribose

  they have different oxygens
• true or false: DNA = deoxyribose

  true
• true or false: RNA + ATP = ribose

  true
• what bases are purine (double ring)

  • A
  • G
  • bigger cause they have 2 rings
• what bases are pyrimidine (single ring)

  • T
  • C
  • U
• how many hydrogen bonds does A and T have

  2
• how many hydrogen bonds does A and U have

  2
• how many hydrogen bonds does C and G have

  3
• what bases differ in DNA and RNA

  • in DNA it's A-T and C-G
  • in RNA it's A-U and C-G
• draw a ribose pentose sugar

  it has 2 OH on the bottom

  
• draw a deoxyribose sugar

  has OH AND H at the bottom

  
• draw a purine skeleton

  2 rings

  
• draw a pyrimidine skeleton

  one ring

  
• whats a phosphodiester bond

  a type of covalent bond that links two nucleotides together to form a nucleic acid, such as DNA or RNA