Cell Biology Day 6

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Author:
Jacqui
ID:
305411
Filename:
Cell Biology Day 6
Updated:
2015-07-19 15:57:51
Tags:
Biology
Folders:
Biology
Description:
cell biology, week 2
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  1. Adenine
    (A) a nitrogenous base of the purine family, found in nucleotides.
  2. Monomer
    The subunit that serves as the building block of a polymer.
  3. Anti-parallel
    Term used to describe how the two strands of DNA in a double helix run in opposite directions (whilst one is 5’ to 3’, the other is 3’ to 5’).
  4. Nitrogenous base
    Includes purines and pyrimidines such as adenine, cytosone, guanine, thymine and uracil that are components of nucleotides.
  5. Base pairing
    Term used to describe the association, by hydrogen bonding, between nitrogenous bases (A with G and C with T or U) in a DNA or RNA molecule.
  6. Nucleoside
    An organic molecule consisting of a nitrogenous base joined to a five-carbon sugar.
  7. Building block principle
    Describes how the large complex molecules found in living systems are quite simple in their basic construction, being polymers made of a chain of monomeric ‘building blocks’.
  8. Nucleotide
    The building block of a nucleic acid, consisting of a five-carbon sugar covalently bonded to a nitrogenous base and a phosphate group.
  9. Covalent bond
    A type of strong chemical bond in which two atoms share one pair of valence electrons.
  10. Pentose
    A five-carbon sugar such as is found in nucleotides.

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