...Topic 1 Basic Molecules of Cells Chapter 3 The Molecules of Cells PowerPoint Lectures for Campbell Biology: Concepts & Connections, Seventh Edition Reece, Taylor, Simon, and Dickey © 2012 Pearson Education, Inc. Lecture by Edward J. Zalisko Learning outcomes: 1. Explain how a cell can make a variety of large molecules from a small set of molecules 2. Define monosaccharides, disaccharides, and polysaccharides and explain their functions 3. Define lipids, phospholipids, and steroids and explain their functions 4. Describe the chemical structure of proteins and their importance to cells 5. Describe the chemical structure of nucleic acids and how they relate to inheritance Copyright © 2012 Pearson Education, Inc. Rearrange these in the correct order: INTRODUCTION TO ORGANIC COMPOUNDS © 2012 Pearson Education, Inc. 3.1 Life’s molecular diversity is based on the properties of carbon Carbon-based molecules are called organic compounds. Methane (CH4) is one of the simplest organic compounds. – Four covalent bonds link four hydrogen atoms to the carbon atom. – Each of the four lines in the formula for methane represents a pair of shared electrons. © 2012 Pearson Education, Inc. Three representatives of methane (CH4) Structural formula Ball-and-stick model Space-filling model The four single bonds of carbon point to the corners of a tetrahedron. Different bond angles and shapes occur when carbon atoms form...
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...Organ is a structure that contains at least two different types of tissues that work together for a common purpose. -Organ system is a group of organs arranged in such a way that they perform functions that they would not otherwise be able to perform if they were by themselves. -Organism is an individual being that contains all of the above mentioned. Without these an organism would not be able to function properly. 2. List and define the characteristics of life and provide an example in your life that demonstrates the characteristic. -There are 7 characteristics of life and they are as follows: Organization is when single cell organisms have a specific make up to be self sufficient. It starts with an organism which is complex. Humans are classified as multicellular because they are composed of many different types of cells. A tissue is defined as a group of similar cells that perform a particular function. An organ is made up of many tissues, and organ systems are a group of organs that perform a common function. One example of life is humans. When acquiring materials and energy, living things take in energy and use it for maintenance and growth. Humans eat plants and animals they raise for food to gain materials and energy as well as vitamins. Reproducing occurs when a new individual organism is produced and formed. This process needs to happen for species not to become extinct. There are two types of reproduction asexual and sexual. Asexual reproduction is producing...
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...course. Prepare any specific questions that you may have. Again, this is an independent review and you will be expected to know these concepts for future use and assessment. This introductory material will not be covered in detail during class time. Chapter 1: Introduction: Themes in the Study of Life 1. Explain the importance of a biological hierarchy in terms of biological organization. 2. Why must scientists study the interactions of organisms with each other and the environment? 3. Comment on the relationship between structure and function in biology. 4. How specifically is the cell life’s basic unit of structure and function? 5. What is the significance of DNA to organisms? 6. Explain the basic concept of a biological feedback system. How does it work? 7. Explain briefly how life’s vast organisms are classified. Give the basic ideas. Make sure to include domains in your discussion. 8. Explain Darwin’s mechanism of evolutionary adaptation called natural selection. 9. Explain why “editing” is an appropriate metaphor for how natural selection acts on a population’s heritable variations. 10. Why do “science” and “inquiry” fit so...
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...------------------------------------------------- Overview[edit] Nutritional science investigates the metabolic and physiological responses of the body to diet. With advances in the fields of molecular biology, biochemistry, genetics, the study of nutrition is increasingly concerned with metabolism and metabolic pathways: the sequences of biochemical steps through which substances in living things change from one form to another. The human body contains chemical compounds, such as water, carbohydrates (sugar, starch, and fiber), amino acids (in proteins), fatty acids (in lipids), and nucleic acids (DNA and RNA). These compounds in turn consist of elements such as carbon, hydrogen, oxygen, nitrogen, phosphorus, calcium, iron, zinc, magnesium, manganese, and so on. All of these chemical compounds and elements occur in various forms and combinations (e.g. hormones, vitamins, phospholipids, hydroxyapatite), both in the human body and in the plant and animal organisms that humans eat. The human body consists of elements and compounds ingested, digested, absorbed, and circulated through the bloodstream to feed the cells of the body. Except in the unborn fetus, the digestive system is the first system involved in obtaining nutrition. In a typical adult, about seven liters of digestive juices enter the digestive tract.[citation needed] These break chemical bonds in ingested molecules, and modulate their conformations and energy states. Though some molecules are absorbed into the bloodstream...
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...Review Biology Test #1 Chapter 3: Water and life • Polar covalent bonds in water result in Hydrogen bonding between the molecules. These bonds give water its special properties • In presence of water, ionic bonds are weak and covalent bonds are strong. Without water, ionic bonds are stronger. • Each water molecule can make 4 hydrogen bonds. • Water properties: 1. Polarity 2. Surface tension 3. Cohesion 4. Adhesion 5. Capilarity 6. High specific heat 7. Heat bank 8. Heat of vaporization allows evaporation cooling. 9. Abundant and versatile solvent 10. Solid is less dense than liquid 11. It is a reactant and a product in many biological reactions (Photosynthesis, dehydration reaction, hydrolysis…) 12. It can ionize into H3O+ and OH- • When substances dissolve in water, water molecules form hydration shells by breaking their attractions to other water molecules and attracting to the solvate particles. • The dissociation of water molecules into Hydronium and hydroxide ions is a reversible reaction that occurs in a state of equilibrium (pure water). • The concentration of each ion in pure water is 10-7 M. [OH-][H3O+] = 10-14 M. This way, whenever we know the concentration of one ion, we can calculate the concentration of the other. • Adding acids and bases can change these concentrations of ions in water • When acids dissolve in water, they donate H+, increasing the concentration of hydrogen ions. This results in an acidic solution • When bases dissolve in water...
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...Substances found in plant foods that are not essential nutrients but may have health-promoting properties are phytochemicals 2 Which is NOT an example of moderation in your diet and lifestyle? Going back for seconds on all dinner items, rather than just the item you like best 3 All of the following are macronutrients except vitamins 4 All of the following are macronutrients lipids carbohydrates protein 5 Which of the following statements about proteins is false? Proteins are made of amino acids, vitamins, and minerals. 6 following statements about proteins are true Proteins differ based on the combinations of amino acids used in each type of protein. Proteins are composed of amino acids. Dietary protein from animal sources better matches the amino acid needs of humans compared to dietary protein derived from plants sources. 7 If you know you are going to order dessert at dinner tonight, which of these choices would illustrate the concept of balancing your choices? Choosing a salad with fat-free salad dressing for lunch 8 With the exception of _______, all the classes of nutrients are involved in forming and maintaining the body’s structure. vitamins 9 Gram per gram, ______ provide the most kcalories. lipids 10 A deficient intake of _______ is known to produce osteoporosis. calcium 11 Some nutrient deficiencies occur quickly, whereas others take more time to develop. Which of the following nutrient deficiencies are listed in the order...
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...Biology Units 3 &4 Notes -Chapter 1- The Chemical Nature of Cells | |Protein |Carbohydrates |Fats |Nucleic acid | |Monomer |Amino acids |Monosaccharaide |Fatty acids, glycerol |Nucleotide | |Example |2o Amino acids |Glucose, Fructose, Ribose |Triglycerides |Adenine, Cytosine, Guanine | | | | |Steroids, Phospholipids |&Thymine/ Uracil | |Diagram | | | | | | | | | | | | | | | | | | | | | | | |Bonding (how units combine – |1st structure-strong covalent |Strong covalent glycoside |Rarely ever forms polymer |covalent bonds b/w sugar | |polymers ...
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...AS Biology Unit 1 page 1 AQA AS Biology Unit 1 Contents Specification Biological Molecules Chemical bonds Carbohydrates Lipids Proteins Biochemical Tests Enzymes Eukaryotic Cells Prokaryotic Cells Cell Fractionation Microscopy The Cell Membrane Movement across Cell Membranes Exchange The Gas Exchange System Lung Diseases The Heart Coronary Heart Disease The Digestive System Cholera Lifestyle and Disease Defence against Disease Immunisation Monoclonal Antibodies 1 – Mathematical Requirements 2– The Unit 1 Exam 2 4 6 8 10 16 17 24 28 30 31 35 37 44 46 50 54 58 60 67 68 72 80 81 83 86 Cells Human Physiology Disease Appendices These notes may be used freely by A level biology students and teachers, and they may be copied and edited. Please do not use these materials for commercial purposes. I would be interested to hear of any comments and corrections. Neil C Millar (nmillar@ntlworld.co.uk) Head of Biology, Heckmondwike Grammar School High Street, Heckmondwike, WF16 0AH July 2011 HGS Biology A-level notes NCM/7/11 AS Biology Unit 1 page 2 Biology Unit 1 Specification Biochemistry Biological Molecules Biological molecules such as carbohydrates and proteins are often polymers and are based on a small number of chemical elements. • Proteins have a variety of functions within all living organisms. The general structure of an amino acid. Condensation and the formation of peptide bonds linking together amino acids to form polypeptides. The relationship...
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...NINTH EDITION Burton’s MICROBIOLOGY FOR THE HEALTH SCIENCES Paul G. Engelkirk, PhD, MT(ASCP), SM(AAM) Biomedical Educational Services (Biomed Ed) Belton, Texas Adjunct Faculty, Biology Department Temple College, Temple, TX Janet Duben-Engelkirk, EdD, MT(ASCP) Biomedical Educational Services (Biomed Ed) Belton, Texas Adjunct Faculty, Biotechnology Department Temple College, Temple, TX Acquisitions Editor: David B. Troy Product Manager: John Larkin Managing Editor: Laura S. Horowitz, Hearthside Publishing Services Marketing Manager: Allison Powell Designer: Steve Druding Compositor: Maryland Composition/Absolute Service Inc. Ninth Edition Copyright © 2011 Lippincott Williams & Wilkins, a Wolters Kluwer business © 2007 Lippincott Williams & Wilkins, © 2004 Lippincott Williams & Wilkins, © 2000 Lippincott Williams & Wilkins, © 1996 Lippincott-Raven, © 1992, 1988, 1983, 1979 JB Lippincott Co. 351 West Camden Street Baltimore, MD 21201 Printed in the People’s Republic of China All rights reserved. This book is protected by copyright. No part of this book may be reproduced or transmitted in any form or by any means, including as photocopies or scanned-in or other electronic copies, or utilized by any information storage and retrieval system without written permission from the copyright owner, except for brief quotations embodied in critical articles and reviews. Materials appearing in this book prepared by individuals as part of their official duties as U.S. government employees...
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...Introduction to Biochemistry Water Amino Acids and the Primary Structures of Proteins Proteins: Three-Dimensional Structure and Function Properties of Enzymes Mechanisms of Enzymes Coenzymes and Vitamins Carbohydrates Lipids and Membranes Introduction to Metabolism Glycolysis Gluconeogenesis, The Pentose Phosphate Pathway, and Glycogen Metabolism The Citric Acid Cycle Electron Transport and Oxidative Phosphorylation Photosynthesis Lipid Metabolism Amino Acid Metabolism Nucleotide Metabolism Nucleic Acids DNA Replication, Repair, and Recombination Transcription and RNA Processing Protein Synthesis Recombinant DNA Technology 1 10 27 46 65 85 104 119 137 153 169 185 199 213 227 241 256 269 284 300 315 330 348 Chapter 1 Introduction to Biochemistry 1) Which elements account for more than 97% of the weight of most organisms? A) C, H, N, Mg, O, S B) C, H, N, O, P, S C) C, H, N D) Fe, C, H, O, P E) Ca2+ , K+ , Na+ , Mg 2+ , ClAnswer: B Page Ref: Section 2 2) Proteins in biological membranes may be A) porous. B) attached to the membrane surface. C) span the membrane. D) All of the above E) B and C only Answer: D Page Ref: Section 3 3) Which statement about cellulose is false? A) It is the most abundant polysaccharide in nature. B) Its monomers are joined by glycosidic bonds. C) It is present in the stems of flowering plants. D) The hydroxyl groups of neighboring cellulose molecules interact to form strong, insoluble ...
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...Advance concept of nursing I Unit 1 Nursing process The nursing process is an organized sequence of problem solving steps used to identify and to manage the health problems of clients .The nursing process is the framework for nursing care in all health care settings.When nursing practice follows the nursing process, clients receive quality care in minimal time with maximal efficiency. The steps of nursing process 1)Assesment 2)Diagnosis 3)Planning 4)Implementation 5)Evaluation Assessment An RN uses a systematic, dynamic way to collect and analyze data about a client, the first step in delivering nursing care. Assessment includes not only physiological data, but also psychological, sociocultural, spiritual, economic, and life-style factors as well. For example, a nurse’s assessment of a hospitalized patient in pain includes not only the physical causes and manifestations of pain, but the patient’s response—an inability to get out of bed, refusal to eat, withdrawal from family members, anger directed at hospital staff, fear, or request for more pain mediation. Diagnosis The nursing diagnosis is the nurse’s clinical judgment about the client’s response to actual or potential health conditions or needs. The diagnosis reflects not only that the patient is in pain, but that the pain has caused other problems such as anxiety, poor nutrition, and conflict within the family, or has the potential to cause complications—for example, respiratory infection is a potential hazard...
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...Molecules, Biodiversity, Food and Health Biological Molecules Biological Molecules (a) describe how hydrogen bonding occurs between water molecules, and relate this, and other properties of water, to the roles of water in living organisms; Water is a polar molecule. This is because the oxygen atom pulls the shared electrons towards it, meaning that water is slightly negatively charged at the oxygen and positively charged at the hydrogen ends, so they can form hydrogen bonds with each other. This are continuing breaking and reforming, so the molecules can move around. Property of water Solvent Importance Metabolic processes in all organisms rely on chemicals being able to react together in solution Examples 70-95% of cytoplasm is water. Dissolved chemicals take part in processes such as respiration and photosynthesis in living organisms Liquid The movement of materials around organisms, both in cells and on a large scale in multicellular organisms requires a liquid transport medium Water molecules stick to each other creating surface tension at the water surface. Cohesion also makes long, thin water columns very strong and difficult to break Blood in animals and the vascular tissue in plants use water as a liquid transport medium Cohesion Freezing Water freezes, forming ice on the surface. Water beneath the surface becomes insulated and less likely to freeze Thermal stability Large bodies of water have fairly...
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...LECTURE NOTES For Nursing Students Human Anatomy and Physiology Nega Assefa Alemaya University Yosief Tsige Jimma University In collaboration with the Ethiopia Public Health Training Initiative, The Carter Center, the Ethiopia Ministry of Health, and the Ethiopia Ministry of Education 2003 Funded under USAID Cooperative Agreement No. 663-A-00-00-0358-00. Produced in collaboration with the Ethiopia Public Health Training Initiative, The Carter Center, the Ethiopia Ministry of Health, and the Ethiopia Ministry of Education. Important Guidelines for Printing and Photocopying Limited permission is granted free of charge to print or photocopy all pages of this publication for educational, not-for-profit use by health care workers, students or faculty. All copies must retain all author credits and copyright notices included in the original document. Under no circumstances is it permissible to sell or distribute on a commercial basis, or to claim authorship of, copies of material reproduced from this publication. ©2003 by Nega Assefa and Yosief Tsige All rights reserved. Except as expressly provided above, no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system, without written permission of the author or authors. This material is intended for educational use only by practicing health care workers or students and faculty...
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...MicroBiology- MLT1 LabPaq / Published by: Hands-On Labs, Inc. sales@labpaq.com / www.LabPaq.com / Toll Free 866.206.0773 A Laboratory Manual of Small-Scale Experiments for the Independent Study of Microbiology 50-0222-MB-01 LabPaq® is a registered trademark of Hands-On Labs, Inc. (HOL). The LabPaq referenced in this manual is produced by Hands-On Labs, Inc. which holds and reserves all copyrights on the intellectual properties associated with the LabPaq’s unique design, assembly, and learning experiences. The laboratory manual included with a LabPaq is intended for the sole use by that LabPaq’s original purchaser and may not be reused without a LabPaq or by others without the specific written consent of HOL. No portion of any LabPaq manual’s materials may be reproduced, transmitted or distributed to others in any manner, nor may be downloaded to any public or privately shared systems or servers without the express written consent of HOL. No changes may be made in any LabPaq materials without the express written consent of HOL. HOL has invested years of research and development into these materials, reserves all rights related to them, and retains the right to impose substantial penalties for any misuse. Published by: Hands-On Labs, Inc. 3880 S. Windermere St. Englewood, CO 80110 Phone: Denver Area: 303-679-6252 Toll-free, Long-distance: 866-206-0773 www.LabPaq.com E-mail: info@LabPaq.com Printed...
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...How to go to your page This eBook set contains two volumes. The main content pages are contiguously numbered: use the Table of Contents to find those page numbers. The front matter pages and indices are labeled with the Volume number and page separated by a colon. For example, to go to page vi of Volume 1, type Vol1:vi in the “page #” box at the top of the screen and click “Go”. To go to page vi of Volume 2, type Vol2:vi in the "page #" box… and so forth. Encyclopedia of Human Body Systems This page intentionally left blank Encyclopedia of Human Body Systems VOLUME 1 Julie McDowell, Editor Copyright 2010 by ABC-CLIO, LLC All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, except for the inclusion of brief quotations in a review, without prior permission in writing from the publisher. Library of Congress Cataloging-in-Publication Data McDowell, Julie. Encyclopedia of human body systems / Julie McDowell. p. cm. Includes bibliographical references and index. ISBN 978–0–313–39175–0 (hard copy : alk. paper) 1. Human physiology—Encyclopedias. I. Title. QP11.M33 2011 612.003—dc22 2010021682 ISBN: 978–0–313–39175–0 EISBN: 978–0–313–39176–7 14 13 12 11 10 1 2 3 4 5 This book is also available on the World Wide Web as an eBook. Visit www.abc-clio.com for details. Greenwood An Imprint of ABC-CLIO, LLC ABC-CLIO, LLC...
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