Transcript Biochemistry ch 2 Notes

AP Bio Ch 2
 The amazon rain forest in South America is a showcase
for the diversity of life on earth. Colorful birds,
insects, and other animals live in a densely-packed
environment of trees, shrubs, vines, and wildflowers
and an excursion along a waterway or a forest path
typically reveals a lush variety of plant life…
 https://www.youtube.com/watch?v=wiOwqDmacJo
 https://www.youtube.com/watch?v=9D05ej8u-gU
 Universe Age:
 13.8 billion years old
 Universe Composition:
 5% ordinary matter & energy
 95% dark matter & energy (still looking for it)
 Matter:
 Anything that has mass & takes up space
 Energy:
 Property of matter which is transferable
Ch 2
 Luciferin (Firefly)
 Caffeine (Coffee Shrub)
 Musimol (Fly Agaric)
 Smallest unit of matter
 Proton: positive
 Neutron: neutral
 Electron: negative
 Electrons:
 hold potential energy
 valence e energy enables matter to become interesting
 https://www.youtube.com/watch?v=Uy0m7jnyv6U
~25 elements are essential to life
 C: building block
 H: provide energy
 N: amino acids
 O: cellular respiration
 P: DNA & energy
 S: protein structure
 Elements combine through chemical bonding
 Covalent: sharing electrons
 Polar (H2O)
 Nonpolar (Lipids, Oils)
 Ionic: transferring electrons
 NaCl
 Hydrogen: weak
 involve H
 Van der Waals: weakest
 give proteins 3D shape
 Process that transforms elements/compounds