Biology exam 1 study guide

Biology exam 1 study guide - Biol 1201 Sec 1 Spring 2009...

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Unformatted text preview: Biol 1201 Sec 1 Spring 2009 First Exam Learning Objectives The exam is at 6:00 PM Thursday Feb 5 in Campbell Auditorium. Focus on the material and examples covered in lecture . The exam covers material in Chapters 2 through 6 of the text. The quiz questions (Moodle and in- class) identify topics I think are important for you to know. There will be 52 questions on the exam each worth 2 points. (The maximum score on the test is 104.) Bring your student ID and a number 2 pencil to the exam . ( And perhaps an eraser.) I will provide you with a scantron. Topics: Information from the Introductory Material From Lecture (3 questions) Know the definitions and examples of Endotherm - Endergonic (endothermic)-- require net input of energy (heat) to proceed Ectotherm - An organism that regulates its body temperature largely by exchanging heat with its surroundings, a cold blooded organism Thermophile - Requiring high temperatures for normal development, as certain bacteria Halophile - An organism that requires a salty environment; requiring a salt- rich environment for growth and survival Barophile - a microorganism which grows best (or can only grow) in high- pressure environments , such as deep-sea environments . Piezophile same as barophile Basic Chemistry Elements and Electrons (7 questions) Atomic mass Atomic number Electron shells Valence (versus electrons in the valence shell) know how to calculate this for atoms important in biological systems Ions Know how to calculate the mass of a molecule Chemical Bonds (2 questions) Covalent (polar and nonpolar) Strong bond Sharing of electrons to complete the valence shell Polar covalent bonds unequal sharing of electrons Partial positive and partial negative regions No net charge associated with molecule Nonpolar covalent bond A bond in which a pair of electrons is distributed or shared equally between two atoms Weak (hydrogen and ionic) IONIC BONDS Weak bond Transfer of electron from one atom to another HYDROGEN BONDS Weak (non-covalent) bonds Between partial positive and partial negative charges Pay particular attention to Fig. 2.9, 2.12 through 2.14 and 2.16 Biological Molecules Functional Groups (6 questions) FUNCTIONAL GROUPS Hydroxyl- Alcohols Carbonyl- Aldehydes (terminal carbon) and ketones\ Carboxyl- Acid group (carbon 2 oxygens and a hydrgogen= COOH) Amino-Amines (involves Nitrogen) Sulfhydryl- Thiols Phosphate- Organic Phosphates ( phosphorus and oxygen) Study Table 4.10 - you need to know the function of the groups and must be able to identify the functional groups Polymerization/breakdown reactions (1question) Synthesis of polymers Condensation (dehydration) synthesis - when monomers are covalently linked together one of the products is a water molecule Proceeds with the removal of a water molecule BREAKDOWN OF POLYMER...
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This note was uploaded on 08/22/2010 for the course BIOL 1201 taught by Professor Wishtichusen during the Spring '07 term at LSU.

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Biology exam 1 study guide - Biol 1201 Sec 1 Spring 2009...

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