Please enable JavaScript.
Coggle requires JavaScript to display documents.
Water, Carbon & The Molecular Diversity of Life - Coggle Diagram
Water, Carbon & The Molecular Diversity of Life
Water & Structure and properties
Polar Covalent Bonds
Oxygen Electronegativity > Hydrogen
Partial Charges
Unequal shared Electrons
Hydrogen Bonds
Weak intermolecular attraction
Causes water cohesion
Four Emergent Properties
4 Emergent Properties
Adhesion = Capillary action
High Specific Heat = Temp. moderation
Cohesion = Surface tension
Expansion upon freeze = ice density < water
Acids, bases & pH
Hydrogen Ions (H+)
Forms hydronium in water
Acids
Donate H+
pH < 7
Bases
Accept H= or donate OH-
pH > 7
Buffers
Resist changes in pH
Important in blood/homeostasis
Carbon & Organic Chemistry
Carbon's Tetravalence
4 valence electrons
Forms 4 covalent bonds
Can form chains, branches, rings
Organic Compounds
Contain carbon life
Basis of life
Stanely Miller Experiment
Stimulated early Earth
Produced Amino acids
Abiotic formation of organics
Molecular Diversity & Functional Groups
Isomers
Same Formula different structure
Enantiomers
Structural isomers
Cis-trans isomers
Functional Groups
Attach to carbon skeleton
Determine chemical properties
Hydroxyl
Carbonyl
Carboxyl
Amino
Phosphate
Sulfhydryl