Biology Study Guide for Exam 1
Biology Study Guide for Exam 1 BIOL 107-06
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This 4 page Study Guide was uploaded by Elizabeth Schnarr on Friday September 9, 2016. The Study Guide belongs to BIOL 107-06 at Truman State University taught by Daniela Ostrowski in Fall 2016. Since its upload, it has received 45 views. For similar materials see Introduction to Biology I in Biology at Truman State University.
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Date Created: 09/09/16
Biology Study Guide 1 Lecture 1: Bio 1. What characteristics make something living? An organism is considered alive if it processes info, can replicate, can acquire and use energy, is a product of evolution, and is made up of one or more cells 2. What is taxonomy? Taxonomy is the science of classification 3. What conditions must be met for natural selection to occur? Individuals must differ in traits that are heritable and they must be in a specific environment where the version of traits is more beneficial to the species’ survival. 4. What 3 things makes a hypothesis good? It is testable, falsifiable, and is written as a declarative statement 5. What is artificial selection? This is when humans interfere in order to choose individuals that will produce the most offspring Lecture 2: Chemistry 1. What 4 elements make up 96% of the human body? Carbon, Nitrogen, Oxygen, and Hydrogen 2. What is atomic number and mass number? Atomic number is the number of protons and mass number is the number of protons AND the number of neutrons 3. What are ionic bonds? Ionic bonds are when an atom transfers an electron to another in order to obtain a full valence shell 4. What are covalent bonds? Covalent bonds are when 2 atoms share a pair of electrons 5. How can you find out an atom’s polarity? An atom is nonpolar if the elements have relatively the same electronegativity and polar if they are different Water and Life 1. Water is both a dhesive and cohesive. 2. What does hydrophilic mean? Waterloving 3. What does hydrophobic mean? Waterfearing 4. What does pH measure? It measures acidity 5. What do buffer systems do? They help maintain homeostasis Carbohydrates 1. What is the monomer of Carbs? Monosaccharides 2. What are the isomers? Glucose, Fructose, and Galactose 3. What is the bond that connects components of carbs? Glycosidic linkages 4. What are the 2 major functions of polysaccharides? Storage and structure 5. Name 4 types of polysaccharides. Cellulose, Chitin, Glycogen, and Starch Lipids 1. What are the three types of lipids? Fats, phospholipids, and steroids 2. What are the components of a fat? 3 fatty acids and a glycerol 3. What do the bonds look like in a saturated vs unsaturated fat? Saturated single bonds Unsaturated double bonds 4. What makes something a lipid? A carboncontaining compound that is nonpolar and hydrophobic 5. What is an ester bond? A bond between glycerol and 3 fatty acid tails Proteins 1. What is the monomer? Amino acids 2. What bond connects the components of a protein? Peptide 3. What makes amino acids unique? Nature of Rgroup 4. How many structures are there? 4 5. What helps with the folding of proteins? Chaperones
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