BIOL 1201 Chapter : Biology Chapter 1-5
Document Summary
Negative (inhibition) and positive (stimulation) feedback regulations. Tells cell when to stop or start making things when needed. Making observations and coming to a conclusion. Make observation then test to find if true. General and can lead to testable hypothesis. Supported by a large body of evidence. Question we come up with that we can test. Mass number sum of protons plus neutrons. Potential energy energy that matter has because of location. Chemical behavior determined by distribution of electrons. Next shells (valence shells) carry up to 8 electrons. When outer electron shells are not full, they react. Form covalent bonds with other similar molecules to fill outer shell. Simple attraction that comes from the attraction of positive and negative. Don"t share electrons, give electrons to each other. Hydrogen atom covalently bonded to one electronegative atom is also attracted to another electronegative atom. Polar covalent bonds in water molecules result in hydrogen bonding.
