Chapter 3 Flashcards
Carbon
4 valence electrons - 4 bonding sites
Hydro Carbon
Molecule made only if hydrogen and carbon
Methane
CH4
Butane
C4H10
Isomer
Same formula different shape
Functional groups
Hydroxyl, Amino, Carbonyl, Phosphate, Carboxyl, Methyl
Hydrophilic
Polar- attracts water
Hydrophobic
Non-polar - repels water
Macromolecules
Proteins, Carbohydrates, & Nucleic Acids
Monomers
Amino Acids, Nucleotides, Monosacharides (Glucose)
Dimer
2 monomers
Polymers are ___ of monomers
Chains
Lipids are not technically
polymers
Dehydration synthesis
Water is produced as a byproduct in joining polymers
Hydrolysis
Water is joined in polymers to break
Polymers
Polysaccharide (carb), Protein, Nucleic Acids
Lipids
Not truly a polymer
Carbohydrate
Polysaccharide, Glucose, Fructose (isomers)
Disaccharide
Glucose + Glucose= Maltose
Glucose + Fructose = Sucrose
Polysaccharides
Starch, Glycogen, Cellulose
Starch
Energy storage in plants
Glycogen
Energy storage in animals
Cellulose
Strengthen plant cell walls, most abundant organic compound
Lipids
No monomers, hydrophobic
Fat triglycerides
Saturated & Unsaturated fats
Saturated Fats
Bad fats, no double bonds, max # of H
Unsaturated Fats
Good Fats, double bonds, less than max # of H
Unsaturated fats → Saturated Fats
Hydrogenated Vegetable Oils
Trans Fats
Fats with hydrogen atoms opposite each other
Other Lipids
Phospholipids, Tryglicerides
Phospholipids
Cell walls, 2 fatty acids, glycerol, & phosphate group
Triglycerides
3 fatty acids linked to glycerol
Steroids
4 fused rings
Cholesterol
Sex steroid precursor, cell membrane
Anabolic Steroid
Synthetic testosterone
Amino Acids joined
Dehydration
Proteins disassembled
Hydrolysis
Amino Acids ➡️ ____ bonds
Peptide
Enzymes
Chemical catalysts
Protein functions
4 possible structures
Primary
Amino acid sequence
Secondary
Alpha helix, beta pleated
Alpha Helix
Coiling
Beta Pleated
Sheet - folding
Tertiary
3-D shape, globular
Quaternary
2 or more peptides joined together
Nucleic Acids
DNA, RNA
DNA
Deoxy Ribose
RNA
Ribose
Nucleotides
Phosphate & 5 C sugar backbone linked to nitrogenous base
5 Bases
A, T, C, G, U
DNA base
A→T, C→G
RNA base
U→T, C→G