Week 1 in Review

Building Blocks of Life

Water

Week 2: Chapter 4—Carbon

The proton, electron and neutron create the building blocks of an organized molecule.Proton = IdentityNeutrons = IsotopesElectrons = Reactivity, Bonding

Basic Organization is the molecule which has:Intramolecular Bonds: Covalent, IonicIntermolecular Bonds: van der Waals,

Hydrogen

The most important elements of life are C, H, O, N, P, SWhich are arranged by inter & intramolecular

forcesIn the presence of water…the building blocks

of life are formed—amino acids.Why is water so important?

Regulates Temperature in organism/environment

Universal Solvent for Metabolic PurposesCohesive/Adhesive Properties for structure and

transportStructure as a solid—”Ice Floats”

Water dissociates into a H+ and – OH ion.Acid is a measurement of H+ in a solution.Base is when more – OH in a solution.Measurement of pH scale. 0-14

Each step has a difference of 10x of H+ ions.Example

pH of 0 has the highest amount of H+ pH of 14 has the lowest amount of H+ The difference between a pH of 0 and 1 is 10x.The difference between a pH of 0 and 2 is 100x (10

x 10)

Buffers regulate pH by adding or removing H+ to the solution.

Can form diverse molecules—4 valence e-

Building Block of DNA, Carbohydrates, Fats, Proteins

Organic = C

Isomer = same molecular formula, different structure = different functions