Biology SI Notes - Chapter One Review Homeostasis Maintaining a living system within an acceptable range Cell Most basic structure in a living

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Chapter One Review Homeostasis: Maintaining a living system within an acceptable range. Cell: Most basic structure in a living organism. Cell Theory: All cells come from pre-existing cells. Prokaryotes and Eukaryotes: Pro doesn’t have mitochondria or cell membrane. Order of Taxonomy: Kingdom, Phylum, Class, Order, Family, Genus, Species Noll Hypothesis: No change between two variables. Alternate Hypothesis: Change between one variable and another. Chapter Two Valence vs. Valence Electrons: Valence are how many electrons you need while Valence Electrons are the electrons you already have. HONC 1234: Numbers are valence. No P = No Amino Acid Octet Rule: Need 8 electrons in outer shell to be complete. (Think Noble Gases) Covalent Bond: Share electrons Ionic Bond: Transfer of electrons Hydrogen Bond: Between molecules Polar Covalent Bond: Occurs between two atoms where one atom pulls the electrons closer to itself due to a higher Electronegativity. Electronegativity: Ability of an atom to pull electrons from another atom. Non-Polar Bond: Two atoms have equal sharing of electrons due to same Electronegativity. Cation: Positively charged ion Anion: Negatively charged ion Isotope: Same number of protons but a different number of neutrons Chapter Three Make sure you read the Van Der Waal’s Interactions in books. Cohesion: When two of the same thing stick together (water molecules) Adhesion: When two different things stick together (water and plastic) Surface Tension: How much energy is required to break the surface of a liquid. Specific Heat: Is the amount of energy required to change one gram of a substance by one degree Celsius. Heat Vaporization: Amount of energy required to go from liquid to gas. Water is different than other liquids because it expands while other liquids contract. pH=4 What is poH? 10 [H+]=.000001 What is the pOH? pH=6 pOH=8 pH was 4 yesterday and 7 today. What is change in [H+] and [OH-]? [H+]= Decreasing 1 X 10^3 [OH-]= Increasing 1 X 10^-3 OH- = Hydroxide H+ = Hydronium Chapter Four Isomer: Same formula different shape of organic molecules. Example is L-Dopa
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Geometric Isomer: Is a rounded double bond Structural Isomer: Single bond Enanitomer: Identical forms, but do not line up. (Hand thing) Read about medicine on page 67. Chapter Five Hydrolysis: Using water to take something apart Condensation Synthesis: Removing water to put something together Lipids: Carbon and Hydrogen Carbohydrates: CHO in a 2:1 ration Saturated is solid at room temperature while unsaturated is liquid at room temperature Proteins: CHO and N Building blocks of proteins are amino acids 20 essentials amino acids. Need to eat 9 of them. Produce 11 of them. Heart is the first thing attacked when there is a lack of amino acids. Basic Structure of Amino Acid: R group (gives each amino acid an identity)
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This note was uploaded on 06/07/2011 for the course BSC 2010c taught by Professor Janewaterman,pamelathomas during the Spring '07 term at University of Central Florida.

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Biology SI Notes - Chapter One Review Homeostasis Maintaining a living system within an acceptable range Cell Most basic structure in a living

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