biomolecules form = function review inquiry activity from previous class
TRANSCRIPT
BiomoleculesForm = Function Review inquiry activity from previous
class.
BIOMOLECULESMACROMOLECULESmade by polymerization-large
compounds built by joining smaller ones together.
Smaller units (subunits) are called monomers.
4 major molecules important to life. Carbohydrates, lipids, nucleic
acids and proteins.
BIO BUILDING BLOCKS
CARBOHYDRATES 1:2:1 RATIO
1 Carbon: 2 Hydrogen: 1 Oxygen Example: the sugar glucose - C6H12O6
Monomer – Monosaccharide Polymer - Polysaccharide Main source of energy for living things Also has structural purpose for living things.
1. Plant cells have cell walls made of cellulose
2. Animal cells store excess sugars as glycogen
CARBOHYDRATES
CARBOHYDRATES
CARBOHYDRATES
CarbohydratePolymer
Monomer(subunit)
LIPIDS Made of Carbon and Hydrogen NOT soluble in water (hydrophobic)
doesn’t mix with water Used to store energy, as chemical
messengers (hormones, steroids) Part of the cell membrane (phospholipids). Saturated-Solid at room temperature.
No double bonds Unsaturated-liquid at room temperature.
Double bonds between Carbons.
LIPIDS
Phospholipids – cell membrane component
Phospholipids: fatty acids bound to glycerol, a phosphate group replaces one fatty acid.
Phosphate group is hydrophilic—”water loving head”
“Water fearing tails” are fatty acid chains—hydrophobic
LipidCell walls
PROTEINS
Composed of Nitrogen, Carbon, Hydrogen, and Oxygen.
Monomers are called amino acidsControl rate of reactionsFunction in transport and formation of
bone and muscle cells.Folded shape is important in enzyme
recognition process.
ProteinsMonomers
Polymers
PROTEINS –amino acids
NUCLEIC ACIDSComposed of Hydrogen, Oxygen,
Nitrogen, Carbon and Phosphorus.Subunits (monomers) are called
nucleotides. Store and transmit hereditary
information.Ex. DNA , RNA
NUCLEIC ACIDS - nucleotides
Nucleic Acids
Monomer
Polymer
NUCLEIC ACIDS
RNA—ribose DNA—deoxyribose
Video Review over Biomolecules
http://youtu.be/PYH63o10iTE
http://youtu.be/n9eWhSbjSFI
Dehydration Synthesishttps://www.youtube.com/watch?v=ZMTeqZLXBSo
Difference in using energy fast or slow:
Fast Chemical Reaction:
http://www.youtube.com/watch?v=V9dhtre_HgUSlow Chemical Reaction:
http://www.youtube.com/watch?v=l-mK3RUtZGs