Flashcards
Biology 1404
Flashcards do conjunto (26)
- 1elementsubstance that cannot be broken down by chemical reactions
- 2which elements are living organisms made of?carbon, hydrogen, oxygen, and nitrogen
- 3Atom structureproton, neutron, electron
- 4protonpositively charged
- 5neutronneutral/ no charge
- 6electronnegatively charged
- 7ioncharged atom
- 8atomic mass# of protons
- 9atomic numbertotal # of protons and neutrons
- 10isotopesdifferent atomic forms of the same element
- 11how do we use radioisotopes?age life, metabolism tracers
- 12orbitalsenergy levels, 2,8,8....
- 13what do atoms do when they have unfilled orbitals?bond
- 14moleculesgroup of atoms bonded together to take part in a reaction
- 15compoundssubstance consisting of 2 or more elements
- 16ionic bondwhen a electronegative atom takes a electron from anther atom.
- 17polar covalent bondunequally shared electerons
- 18nonpolar covalent bondsequally shared electrons
- 19hydrogen bondbonds between hydrogen and electronegative atom
- 20Van der Waals interactionswhen electrons are not symetrically distributed
- 21characteristics of watercohesion, constant temp, and polar solvent
- 22hydrophobicdislikes water
- 23hydrophilicloves water
- 24acidmore h+
- 25basicmore oh-
- 26buffersmaintian constant pH.
Informações
- Descrição
- 1st semmester, freshman biology : chapter 1-4
- Criado por
- kirkham.brittany
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