Chapter 3 Biomolecules pages 53-73. 99% of the mass of most cells is H, O, N, and C These are the smallest elements that can form 1,2,3 and 4 bonds. Required in grams/day Required in milligrams or less/day. Biomolecules are complex, but are made up of simpler components.
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99% of the mass of most cells is H, O, N, and C
These are the smallest elements that can form 1,2,3 and 4 bonds.
Required in grams/day
Required in milligrams
lipids are the most abundant biomolecules
Carbon atoms form 4 tetrahedral single bonds.
Two carbon atoms sharing a single bond can
rotate around the single bond.
are closer and cannot rotate about the
double bond. The carbons and the
atoms bound to them form a plane.
backbones with added functional groups,
referred to as “R” groups
The central carbon (a-carbon) is a chiral center
fitting within an RNA a pocket (grey)
Reactions are catalyzed by enzymes in order to build biomolecules
(anabolism, requires energy) and to degrade biomolecules (catabolism, produces energy).
Figure 1-15 page 12
Terminal phosphoryl (shaded) can then be
reactions to produce a favorable overall reaction .
transferred in an oxidation-reduction
via nucleophilic substitution reactions
sequential electron transfers
are the basic building blocks of biomolecules