Cht 4&5: Organic Flashcards
4 classes of organic compounds
Carbs: sugar
Lipids: fats
Proteins: everything
Nucleus acids: genes
Carbs
Monosaccharides: simple sugars
Disaccharides: two monos linked with covalent bond
Polysaccharides: many monos
Polysaccharides
Starch: food storage in plants
Glycogen: food storage in animals
Cellulose: plants
Chitin: animals
Lipids
Cannot be dissolved in water.
Long term energy, insulates, protects organs.
Glycerol.
Triglycerides
3fatty acid chains attached to 1 glycerol
Saturated and unsaturated fats
Lipids
Saturated fats
Carbons are filled with hydrogen, making them solid at room temp. Butter
Bad fats
Single bonds
Lipids
Unsaturated fats
Carbons are not totally filled with hydrogen making them liquid at room temp. Double bond
Good fat
Lipid
Phospholipid
Only two fatty acid chains (hydrophobic tails) attached to a phosphate group (hydrophilic head)
Phospholipid bilayer or micelle
When in water the hydrophobic tails cluster to form a circular
Lipids
Steroids
Consist of 4 fused rings
Cholesterol
Lipid
Proteins
Everything.
Amino acids.
Peptide bonds.
Complexity of proteins
Nucleic acids
Building blocks of genes. DNA. RNA Provides info to build cells Copy themselves to pass info Polymer and monomers Nucleotides
3 components of nucleotides
Pentose sugar
Nitrogenous bases: AGCT, AGCU
Phosphate groups