Lecture 3: Basic Chemistry cont. Flashcards
Solute
Dissolved by solvent
Solvent
Dissolves substances
Hydrophilic
Water loving
Hydrophobic
Water fearing
Hydrolysis
Chemical reactions that use water to break down molecules
Dehydration reaction
Remove h2o to make larger molecules
pH scale
Measures the concentration of hydrogen and hydroxyl ions
Buffers
Convert strong acid or base into a weaker state
Macromolecules
Chain like molecules made of many similar or repeating units
Monomers
Units of biological molecules
Monosaccharides
Simple sugars
Disaccharide
Double sugars
Dehydration synthesis
Monomers joined by removal of water
Hydrolysis reaction
Monomers released by the addition of water
Polysaccharides
Long, branching chains of linked simple sugars
Triglycerides
Neutral fats with two building blocks: fatty acids and glycerol
Saturated fats
Fatty acid chains with a single covalent bond between carbon atoms
Monounsaturated fats
1 double bond in a fatty acid chain
Polyunsaturated fats
2+ double bonds in the fatty acid chain
Phospholipids
Similar to triglycerides but have two instead of three attached fatty acids
Steroids
Fat molecules formed of four interlocking rings. Cholesterol is the most important steroid molecule.