Biomolecules. Energetics in biology. Biomolecules inside the cell
|
|
- Britton Simpson
- 5 years ago
- Views:
Transcription
1 Biomolecules Energetics in biology Biomolecules inside the cell
2 Energetics in biology The production of energy, its storage, and its use are central to the economy of the cell. Energy may be defined as the ability to do work, a concept applicable to automobile engines and electric power plants in our physical world and to cellular engines in the biological world. The energy associated with chemical bonds can be harnessed to support chemical work and the physical movements of cells. Several Forms of Energy Are Important in Biological Systems Kinetic energy is the energy of movement, the motion of molecules, for example. Potential energy, or stored energy, is particularly important in the study of biological or chemical systems. Thermal Radiant Mechanical Electric Chemical potential energy Concentration gradient Electric potential
3 Thermodynamic principles Open and closed systems We will review the first and second laws of thermodynamics focusing on their relationship to energy flow in living organisms.
4 The first law of thermodynamics states that the total energy of a system plus its environment remains constant. Cells Can Transform One Type of Energy into Another: In photosynthesis, the radiant energy of light is transformed into the chemical potential energy of the covalent bonds between the atoms in a sucrose or starch molecule. In muscles and nerves, chemical potential energy stored in covalent bonds is transformed, respectively, into the kinetic energy of muscle contraction and the electric energy of nerve transmission. In all cells, potential energy, released by breaking certain chemical bonds, is used to generate potential energy in the form of concentration and electric potential gradients. Similarly, energy stored in chemical concentration gradients or electric potential gradients is used to synthesize chemical bonds or to transport molecules from one side of a membrane to another to generate a concentration gradient. This latter process occurs during the transport of nutrients such as glucose into certain cells and transport of many waste products out of cells. The standard unit of energy for biochemists is calorie (1 joule calories).
5 The second law of thermodynamics states that a system and its surroundings always proceed to a state of maximum disorder or maximum entropy, a state in which all available energy has been expended and no work can be performed. Many biological reactions lead to an increase in order, and thus a decrease in entropy (S < 0). An obvious example is the reaction that links amino acids together to form a protein. A solution of protein molecules has a lower entropy than does a solution of the same amino acids unlinked, because the free movement of any amino acid in a protein is restricted when it is bound into a long chain. reactants products All systems change in such a way that free energy [G] is minimized. In the conversion of complex foods such as glucose [C6(H2O)6] to simpler products such as CO2 and H2O, energy conversions, allowed by the first law of thermodynamics, take place.
6 The free energy of a chemical system can be defined as G= H -TS, where H is the bond energy, or enthalpy, of the system; T is its temperature in degrees Kelvin (K); and S is the entropy, a measure of its randomness or disorder. If temperature remains constant, a reaction proceeds spontaneously only if the free-energy change G in the following equation is negative:
7 An Unfavorable Chemical Reaction Can Proceed If It Is Coupled with an Energetically Favorable Reaction Many processes in cells are energetically unfavorable (G > 0) and will not proceed spontaneously. Examples include the synthesis of DNA from nucleotides and transport of a substance across the plasma membrane from a lower to a higher concentration. Cells can carry out an energyrequiring reaction (G1 > 0) by coupling it to an energy-releasing reaction (G2 < 0) if the sum of the two reactions has a net negative G. Energetically unfavorable reactions in cells often are coupled to the hydrolysis of ATP, as we discuss next.
8 Hydrolysis of ATP Releases Substantial Free Energy and Drives Many Cellular Processes In almost all organisms, adenosine triphosphate, or ATP, is the most important molecule for capturing, transiently storing, and subsequently transferring energy to perform work (e.g., biosynthesis, mechanical motion). The useful energy in an ATP molecule is contained in phosphoanhydride bonds, which are covalent bonds formed from the condensation of two molecules of phosphate by the loss of water: An ATP molecule has two key phosphoanhydride bonds. Hydrolysis of a phosphoanhydride bond (~) in each of the following reactions has a highly negative Gº of about 7.3 kcal/mol: (ATP Is Generated During Photosynthesis and Respiration)
9 Biomolecules inside the cell Cells contain four major families of small organic molecules: Sugars, Fatty acids, Amino acids, and Nucleotide
10 Bond type
11 Sugars: Sugars provide an energy source for cells and are the subunits of polysaccharides. H H HO C C C O OH H The molecules made from sugars, are also called carbohydrates. I (CH 2 O) n or H - C - OH I H C OH H C OH CH 2 OH D-glucose C 6 H 12 O 6 Monosaccharides - simple sugars with multiple OH groups. Based on number of carbons (3, 4, 5, 6), a monosaccharide is a triose, tetrose, pentose or hexose. Disaccharides - 2 monosaccharides covalently linked. Oligosaccharides - a few monosaccharides covalently linked. Polysaccharides - polymers consisting of chains of monosaccharide or disaccharide units.
12 Fatty acids: Fatty acids, the simplest lipids, consist of a hydrocarbon chain with a carboxylic acid at one end. an 16-C fatty acid: CH 3 (CH 2 ) 14 -COO - Non-polar polar Fatty acids are components of cell membranes as well as a source of energy and are stored in the form of triacylglycerols.
13 Bipolarity Cell membrane
14 Amino acids: Amino acids are the subunits of proteins Every amino acid has a similar basic structure NH 3 CHRCOOH Except for glycine (R = H), all amino acids have at least one asymmetric carbon atom and exists as two stereoisomers (D or L) Only L form exists in proteins
15 20 common amino acids
16 Peptide band
17 Protein structures Organization levels determining protein structure Level of structure Basis of Structure Bonds involved Primary Amino acid sequence Covalent bonds Secondary Tertiary Quaternary Folding into a helix, b sheet or random coil 3D folding of a single polypeptide Association of 2 or more folded subunits Hydrogen bonds Hydrogen and disulfide bonds, electrostatic and hydrophobic interactions Same as tertiary
18 Protein structure Primary structure Carbon Nitrogen Secondary structure Tertiary structure Quaternary structure
19 Protein function
20 Functions of membrane proteins: Outside Plasma membrane Inside Transporter Enzyme activity Cell surface receptor Cell surface identity marker Cell adhesion Attachment to the cytoskeleton
21 Nucleotids: Nucleotids are the subunits of DNA and RNA A nucleotide is made of 3 components: A Pentose sugar A Phosphate group A Nitogenous base In DNA the four bases are: Thymine (T) Adenine (A) Cytosine (C) Guanine (G) In RNA the four bases are: Uracil (U) Adenine (A) Cytosine (C) Guanine (G) Deoxyribonucleic acid (DNA) Ribonucleic acid (RNA)
22
23 Chemical structures of the principal bases in nucleic acids: Five different nucleotides are used to build nucleic acids
24 DNA STRUCTURE hydrogen bonded nucleotides on opposite helices DNA helices are antiparallel carbons on sugar define ends... 5' and 3' pyrimidines bond with purines T A C G
25 RNA structure mrna Ribonucleic acid (RNA). RNA is a single strand of nucleotides that relays instructions from genes to ribosomes, guiding the chemical reactions in the synthesis of amino acids into protein. trna rrna
26 Adenosine tri phosphate (ATP)
27 Energy transfer
28 Summary
29 Macromolecules
Ch 3: Chemistry of Life. Chemistry Water Macromolecules Enzymes
Ch 3: Chemistry of Life Chemistry Water Macromolecules Enzymes Chemistry Atom = smallest unit of matter that cannot be broken down by chemical means Element = substances that have similar properties and
More informationChapter 2. Chemical Principles
Chapter 2 Chemical Principles Insert Fig CO 2 The Structure of Atoms Chemistry is the study of interactions between atoms and molecules The atom is the smallest unit of matter that enters into chemical
More information2/25/2013. Electronic Configurations
1 2 3 4 5 Chapter 2 Chemical Principles The Structure of Atoms Chemistry is the study of interactions between atoms and molecules The atom is the smallest unit of matter that enters into chemical reactions
More informationW2. Chemical structures of protein and DNA
W2. Chemical structures of protein and DNA Copyright Kang, Lin-Woo, Ph.D. Professor Department of Biological Sciences Konkuk University Seoul, Korea Lectures prepared by Christine L. Case The Structure
More informationChapter 2 The Chemistry of Biology. Dr. Ramos BIO 370
Chapter 2 The Chemistry of Biology Dr. Ramos BIO 370 2 Atoms, Bonds, and Molecules Matter - all materials that occupy space and have mass Matter is composed of atoms. Atom simplest form of matter not divisible
More informationChemical Principles and Biomolecules (Chapter 2) Lecture Materials for Amy Warenda Czura, Ph.D. Suffolk County Community College Eastern Campus
Chemical Principles and Biomolecules (Chapter 2) Lecture Materials for Amy Warenda Czura, Ph.D. Suffolk County Community College Eastern Campus Primary Source for figures and content: Tortora, G.J. Microbiology
More informationCHEMICAL BONDS. Attraction that holds molecules together Involves valence electrons. Ionic Bonds Covalent Bonds. Involves sharing of.
CHEMICAL BONDS DEFINITION/DESCRIPTION: Attraction that holds molecules together Involves valence electrons TYPES: Ionic Bonds Covalent Bonds Involves sharing of electrons Electronegativities O = 3.5 N
More informationHuman Biology. The Chemistry of Living Things. Concepts and Current Issues. All Matter Consists of Elements Made of Atoms
2 The Chemistry of Living Things PowerPoint Lecture Slide Presentation Robert J. Sullivan, Marist College Michael D. Johnson Human Biology Concepts and Current Issues THIRD EDITION Copyright 2006 Pearson
More informationChapter 2. The Structure of Atoms. The Structure of Atoms. The Structure of Atoms
1 The Structure of Atoms 2 Chapter 2 Chemical Principles Chemistry is the study of interactions between atoms and molecules The atom is the smallest unit of matter that enters into chemical reactions Atoms
More informationCh. 2 BASIC CHEMISTRY. Copyright 2010 Pearson Education, Inc.
Ch. 2 BASIC CHEMISTRY Matter and Composition of Matter Definition: Anything that has mass and occupies space Matter is made up of elements An element cannot be broken down by ordinary chemical means Atoms
More informationthe spatial arrangement of atoms in a molecule and the chemical bonds that hold the atoms together Chemical structure Covalent bond Ionic bond
Chemical structure the spatial arrangement of atoms in a molecule and the chemical bonds that hold the atoms together Covalent bond bond formed by the sharing of valence electrons between atoms Ionic bond
More informationBIOCHEMISTRY GUIDED NOTES - AP BIOLOGY-
BIOCHEMISTRY GUIDED NOTES - AP BIOLOGY- ELEMENTS AND COMPOUNDS - anything that has mass and takes up space. - cannot be broken down to other substances. - substance containing two or more different elements
More informationChapter 2: Chemistry. What does chemistry have to do with biology? Vocabulary BIO 105
Chapter 2: Chemistry What does chemistry have to do with biology? BIO 105 Vocabulary 1. Matter anything that takes up space and has mass Atoms are the smallest units of matter that can participate in chemical
More informationThe biomolecules of terrestrial life
Functional groups in biomolecules Groups of atoms that are responsible for the chemical properties of biomolecules The biomolecules of terrestrial life Planets and Astrobiology (2017-2018) G. Vladilo 1
More informationChemical Principles. PowerPoint Lecture Presentations prepared by Bradley W. Christian, McLennan Community College C H A P T E R
PowerPoint Lecture Presentations prepared by Bradley W. Christian, McLennan Community College C H A P T E R 2 Chemical Principles The Structure of Atoms Learning Objective 2-1 Describe the structure of
More informationThere are two types of polysaccharides in cell: glycogen and starch Starch and glycogen are polysaccharides that function to store energy Glycogen Glucose obtained from primary sources either remains soluble
More information2: CHEMICAL COMPOSITION OF THE BODY
1 2: CHEMICAL COMPOSITION OF THE BODY Although most students of human physiology have had at least some chemistry, this chapter serves very well as a review and as a glossary of chemical terms. In particular,
More informationNature of matter. Chemical bond is a force that joins atoms
Nature of matter Atom the smallest unit of matter that cannot be broken down by chemical means The subatomic particles of an atom consist of protons, neutrons and electrons Element is a pure substance
More information`1AP Biology Study Guide Chapter 2 v Atomic structure is the basis of life s chemistry Ø Living and non- living things are composed of atoms Ø
`1AP Biology Study Guide Chapter 2 v Atomic structure is the basis of life s chemistry Ø Living and non- living things are composed of atoms Ø Element pure substance only one kind of atom Ø Living things
More informationUnit 1: Chemistry - Guided Notes
Scientific Method Notes: Unit 1: Chemistry - Guided Notes 1 Common Elements in Biology: Atoms are made up of: 1. 2. 3. In order to be stable, an atom of an element needs a full valence shell of electrons.
More informationChapter 2. Lecture Outline. See separate PowerPoint slides for all figures and tables pre-inserted into PowerPoint without notes.
All rights reserved. Authorized only for instructor use in the classroom. No reproduction or further distribution permitted without the prior written consent of McGraw-Hill Education. Chapter 2 Lecture
More informationTeacher Instructions
Teacher Instructions To print handouts for students Go to File print, change Print what: to handouts, change # per page if desired to enlarge slides on page Change Print range to slides and type in slide
More informationMULTIPLE CHOICE. Circle the one alternative that best completes the statement or answers the question.
Summer Work Quiz - Molecules and Chemistry Name MULTIPLE CHOICE. Circle the one alternative that best completes the statement or answers the question. 1) The four most common elements in living organisms
More informationBio10 Cell and Molecular Lecture Notes SRJC
Basic Chemistry Atoms Smallest particles that retain properties of an element Made up of subatomic particles: Protons (+) Electrons (-) Neutrons (no charge) Isotopes Atoms of an element with different
More informationChapter 002 The Chemistry of Biology
Chapter 002 The Chemistry of Biology Multiple Choice Questions 1. Anything that occupies space and has mass is called A. Atomic B. Living C. Matter D. Energy E. Space 2. The electrons of an atom are A.
More informationChapter 2: Chemical Basis of Life
Chapter 2: Chemical Basis of Life Chemistry is the scientific study of the composition of matter and how composition changes. In order to understand human physiological processes, it is important to understand
More informationFoundations in Microbiology Seventh Edition
Lecture PowerPoint to accompany Foundations in Microbiology Seventh Edition Talaro Chapter 2 The Chemistry of Biology Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
More informationChemistry Basics. Matter anything that occupies space and has mass Energy the ability to do work. Chemical Electrical Mechanical Radiant. Slide 2.
Chemistry Basics Matter anything that occupies space and has mass Energy the ability to do work Chemical Electrical Mechanical Radiant Slide 2.1 Composition of Matter Elements Fundamental units of matter
More information1/23/2012. Atoms. Atoms Atoms - Electron Shells. Chapter 2 Outline. Planetary Models of Elements Chemical Bonds
Chapter 2 Outline Atoms Chemical Bonds Acids, Bases and the p Scale Organic Molecules Carbohydrates Lipids Proteins Nucleic Acids Are smallest units of the chemical elements Composed of protons, neutrons
More informationChapter 2: The Chemical Basis of Life
Chapter 2: The Chemical Basis of Life I. Basic Chemistry A. Matter, Mass, and Weight 1. All living and nonliving things are composed of 2. represents the amount of matter. 3. is caused by the gravitational
More informationChapter Two: The Chemistry of Biology. The molecules of life make up the structure of cells Chemistry of biological molecule
Chapter Two: The Chemistry of Biology The molecules of life make up the structure of cells Chemistry of biological molecule Atoms and Elements: Atoms: The basic units of all matter, containing three major
More informationChemistry of Life. Chapter 2
Chemistry of Life Chapter 2 Elements Simplest form of matter Made of atoms of one type Cannot be chemically broken down into simpler substances About 117 known elements The Periodic Table of Elements Each
More informationBIOCHEMISTRY 10/9/17 CHEMISTRY OF LIFE. Elements: simplest form of a substance - cannot be broken down any further without changing what it is
BIOCHEMISTRY CHEMISTRY OF LIFE Elements: simplest form of a substance - cannot be broken down any further without changing what it is THE ATOM Just like cells are the basic unit of life, the ATOM is the
More information2) Matter composed of a single type of atom is known as a(n) 2) A) element. B) mineral. C) electron. D) compound. E) molecule.
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which of the following is a particle found in the nucleus of an atom and that has no electrical
More informationFull file at
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which of the following is an uncharged particle found in the nucleus of 1) an atom and which has
More informationFigure ) Letter E represents a nucleic acid building block known as a. Answer: nucleotide Diff: 3 Page Ref: 54
Essentials of Human Anatomy and Physiology, 10e (Marieb) Chapter 2 Basic Chemistry 2.1 Short Answer Figure 2.1 Using Figure 2.1, identify the following: 1) Which letter represents a carbohydrate polymer?
More informationChapter 2. The Chemistry of Life
Chapter 2 The Chemistry of Life Introduction Cells, tissues and organs composed of chemicals Chemical reactions important for function Chemistry is the study of elements, compounds, chemical reactions,
More informationWhat Mad Pursuit (1988, Ch.5) Francis Crick (1916 ) British molecular Biologist 12 BIOLOGY, CH 1
1 Almost all aspects of life are engineered at the molecular level, and without understanding molecules we can only have a very sketchy understanding of life itself. What Mad Pursuit (1988, Ch.5) Francis
More informationUnit 2: Basic Chemistry
Unit 2: Basic Chemistry I. Matter and Energy A. Matter anything that occupies space and has mass (weight) B. Energy the ability to do work 1. Chemical 2. Electrical 3. Mechanical 4. Radiant C. Composition
More informationEVPP 110 Lecture Exam #1 Study Questions Fall 2003 Dr. Largen
EVPP 110 Lecture Exam #1 Study Questions Fall 2003 Dr. Largen These study questions are meant to focus your study of the material for the first exam. The absence here of a topic or point covered in lecture
More informationChemical Basis of Life
Chemical Basis of Life Jan 30 11:42 AM In order to understand digestion and nutrition, we need some basic biochemistry Chemistry studies the composition of matter and its changes as well as the change
More informationFull file at
CHAPTER 2 THE CHEMISTRY OF BIOLOGY Chemistry is introduced in this chapter. Matter, atoms, elements, and molecules are defined. Chemical bonds are discussed in terms of their strength and formation, and
More informationBiology 30 The Chemistry of Living Things
Biology 30 The Chemistry of Living Things Hierarchy of organization: Chemistry: MATTER: Periodic Table: ELEMENT: Ex. oxygen, gold, copper, carbon COMPOUND: Ex. salt (NaCl), H 2 O ELEMENTS ESSENTIAL TO
More informationAP BIOLOGY BIOCHEMISTRY MULTIPLE CHOICE EXAM (RAVEN CHAPTERS 2, 3)
Period Date AP BIOLOGY BIOCHEMISTRY MULTIPLE CHOICE EXAM (RAVEN CHAPTERS 2, 3) 1. Which of the following is an example of a hydrogen bond? (90:09) A. The peptide bond between amino acids in a protein B.
More informationUNIT 2 CHEMISTRY. Atomic Structure: Ionic Bond: Covalent Bond: Hydrogen Bond:
UNIT 2 CHEMISTRY Atomic Structure: Ionic Bond: Hydrogen Bond: Covalent Bond: 1 Carbohydrates: >energy yield- >elements- >monomers- >functions- >examples- >misc- Lipids: Proteins: Nucleic Acids: I. Energy
More informationCopy into Note Packet and Return to Teacher
Copy into Note Packet and Return to Teacher Section 1: Nature of Matter Objectives: Differentiate between atoms and elements. Analyze how compounds are formed. Distinguish between covalent bonds, hydrogen
More informationMatter and Substances Section 3-1
Matter and Substances Section 3-1 Key Idea: All matter is made up of atoms. An atom has a positively charges core surrounded by a negatively charged region. An atom is the smallest unit of matter that
More informationChemical Foundations for Cells The origin of life and organic compounds of organisms
Chemical Foundations for Cells The origin of life and organic compounds of organisms Atomic Structure Atoms are the smallest units that retain the properties of elements. Atoms are composed of protons,
More information2/18/2013 CHEMISTRY OF CELLS. Carbon Structural Formations. 4 Classes of Organic Compounds (biomolecules)
CHEMISTRY OF CELLS 11 elements make up all organisms C, O, N, H: 96% weight of human body ORGANIC CHEMISTRY Organic compounds: contain C Inorganic compounds: no C Bonding and Structural Formulas H and
More informationUNIT 2 CHEMISTRY. Atomic Structure: Ionic Bond: Covalent Bond: Hydrogen Bond:
UNIT 2 CHEMISTRY Atomic Structure: Ionic Bond: Hydrogen Bond: Covalent Bond: 1 Carbohydrates: >energy yield- >elements- >monomers- >functions- >examples- >misc- Lipids: Proteins: Nucleic Acids: I. Energy
More informationUnit Two Chemistry of the Human Body
I. Introduction to atoms Unit Two Chemistry of the Human Body A. Chemistry is the branch of science that concerns itself with the structure of matter, including the interaction between atoms. 1. Atoms-
More information2: CHEMICAL COMPOSITION OF THE BODY
1 2: CHEMICAL COMPOSITION OF THE BODY CHAPTER OVERVIEW This chapter provides an overview of basic chemical principles that are important to understanding human physiological function and ultimately homeostasis.
More informationChemistry Comes to Life
BIOLOGY OF HUMANS Concepts, Applications, and Issues Fifth Edition Judith Goodenough Betty McGuire 2 Chemistry Comes to Life Lecture Presentation Anne Gasc Hawaii Pacific University and University of Hawaii
More informationEssentials of Human Anatomy and Physiology, 12e (Marieb) Chapter 2 Basic Chemistry. 2.1 Multiple Choice Part I Questions
Essentials of Human Anatomy and Physiology 12th Edition Marieb TEST BANK Full download at: https://testbankrealcom/download/essentialshuman-anatomy-physiology-12th-edition-mariebtest-bank/ Essentials of
More informationReview Activity Module 1: Biological Chemistry
Review Activity Module 1: Biological Chemistry Laroche: The picture above is of a molecule calle MC1R. Based on what you ve learned so far about the various biological macromolecules, what kind of macromolecule
More informationBasic Chemistry. Chapter 2 BIOL1000 Dr. Mohamad H. Termos
Basic Chemistry Chapter 2 BIOL1000 Dr. Mohamad H. Termos Chapter 2 Objectives Following this chapter, you should be able to describe: - Atoms, molecules, and ions - Composition and properties - Types of
More informationChapter 02 Chemistry of Life
Chapter 02 Chemistry of Life Multiple Choice Questions 1. The smallest unit of matter is the A. molecule. B. atom. C. compound. D. isotope. HAPS Objective: C.01.03 Compare and contrast the terms atoms,
More informationChapter 02 Testbank. 1. Anything that occupies space and has mass is called. A. an electron. B. living. C. matter. D. energy. E. space.
Chapter 02 Testbank Student: 1. Anything that occupies space and has mass is called A. an electron. B. living. C. matter. D. energy. E. space. 2. The electrons of an atom are A. always equal to the number
More informationNumber of questions TEK (Learning Target) Biomolecules & Enzymes
Unit Biomolecules & Enzymes Number of questions TEK (Learning Target) on Exam 8 questions 9A I can compare and contrast the structure and function of biomolecules. 9C I know the role of enzymes and how
More informationMicrobiology: A Systems Approach, 2 nd ed. Chapter 2: The Chemistry of Biology
Microbiology: A Systems Approach, 2 nd ed. Chapter 2: The Chemistry of Biology 2.1 Atoms, Bonds, and Molecules: Fundamental Building Blocks Matter: anything that occupies space and has mass Can be liquid,
More informationLiving and nonliving things are all made of elements. It is the way that atoms combine that give every element a different characteristic.
Living and nonliving things are all made of elements. It is the way that atoms combine that give every element a different characteristic. 98% of the body is made of only 6 elements The 6 elements are:
More informationChapter 02 Chemical Composition of the Body
Chapter 02 Chemical Composition of the Body 1. In an atom, the number of Student: A. Protons always equals the number of neutrons B. Of protons always equals the number of electrons C. Of neutrons always
More informationThe Chemistry and Energy of Life
2 The Chemistry and Energy of Life Chapter 2 The Chemistry and Energy of Life Key Concepts 2.1 Atomic Structure Is the Basis for Life s Chemistry 2.2 Atoms Interact and Form Molecules 2.3 Carbohydrates
More informationName: Date: Period: Biology Notes: Biochemistry Directions: Fill this out as we cover the following topics in class
Name: Date: Period: Biology Notes: Biochemistry Directions: Fill this out as we cover the following topics in class Part I. Water Water Basics Polar: part of a molecule is slightly, while another part
More informationChapter 02 Chemistry of Life
Maders Understanding Human Anatomy and Physiology 9th Edition Longenbaker Test Bank Full Download: http://testbanklive.com/download/maders-understanding-human-anatomy-and-physiology-9th-edition-longenbaker
More informationBIOCHEMISTRY The Chemistry of Living Things
BIOCHEMISTRY The Chemistry of Living Things Biochemistry, an area that many students find pretty challenging (difficult). While the ideas are abstract, much of the material boils down to memorization.
More informationChapter 02 Testbank. 1. Anything that occupies space and has mass is called. A. an electron. B. living. C. matter. D. energy. E. space.
Chapter 02 Testbank Student: 1. Anything that occupies space and has mass is called A. an electron. B. living. C. matter. D. energy. E. space. 2. The electrons of an atom are A. always equal to the number
More informationMULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1)
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) 1) Which of the following statements about the atom A) It has 12 neutrons in its nucleus. B) It
More informationMetabolism. AP Biology Chapter 8
Metabolism AP Biology Chapter 8 Energy Energy management Bioenergetics is the study of how organisms manage their energy resources. Energy is the capacity to do work. Energy exists in various forms Cells
More informationChapter 02 Chemical Composition of the Body
Chapter 02 Chemical Composition of the Body Multiple Choice Questions 1. Water makes up of the total body weight of an average adult. A. 50-60% B. 55-65% C. 60-70% D. 65-75% Learning Outcome: 02.01 2.
More informationMicrobiology with Diseases by Taxonomy, 5e (Bauman) Chapter 2 The Chemistry of Microbiology. 2.1 Multiple Choice Questions
Microbiology with Diseases by Taxonomy, 5e (Bauman) Chapter 2 The Chemistry of Microbiology 2.1 Multiple Choice Questions 1) Which of the following does not contribute significantly to the mass of an atom?
More informationCh. 2 Chemistry Comes to Life
BIOL 164 Human Biology Ch 2 Chemistry Ch. 2 Chemistry Comes to Life Basic Chemistry Helps Us Understand Human Biology Chemistry Science of the composi9on and proper9es of ma:er Carbohydrates, Lipids, Proteins,
More informationModel Worksheet Teacher Key
Introduction Despite the complexity of life on Earth, the most important large molecules found in all living things (biomolecules) can be classified into only four main categories: carbohydrates, lipids,
More informationHuman Anatomy & Physiology. Chapter 2: Chemistry Comes Alive. Copyright 2010 Pearson Education, Inc.
Human Anatomy & Physiology Chapter 2: Chemistry Comes Alive MATTER VS. ENERGY Which of the following is not an example of matter? 1) Blood plasma 2) The air we breathe 3) An arm bone 4) Electricity Which
More informationBiology I Fall Semester Exam Review 2014
Biology I Fall Semester Exam Review 2014 Biomolecules and Enzymes (Chapter 2) 8 questions Macromolecules, Biomolecules, Organic Compunds Elements *From the Periodic Table of Elements Subunits Monomers,
More informationMULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Figure 2.1
Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Figure 2.1 1) Which compound in Figure 2.1 is an ester? 1) A) a b c d e Answer: D 2) A scientist
More informationGuided Notes Unit 1: Biochemistry
Name: Date: Block: Chapter 2: The Chemistry of Life I. Concept 2.1: Atoms, Ions, and Molecules a. Atoms Guided Notes Unit 1: Biochemistry i. Atom: _ ii. (They are SUPER small! It would take 3 million carbon
More informationChapter 2 Chemical Aspects of Life
Chapter 2 Chemical Aspects of Life Multiple Choice Questions 1. Anything that has weight and occupies space can be described as A. an atom. B. matter. C. a compound. D. a molecule. #1 Learning Outcome:
More informationChemistry in Living Systems. By Dr. Carmen Rexach Physiology Mt SAC Biology Department
Chemistry in Living Systems By Dr. Carmen Rexach Physiology Mt SAC Biology Department Matter and Energy Definitions Types of energy Kinetic vs. potential Forms of energy Chemical Ex: ATP Electrical Ex:
More information1. (5) Draw a diagram of an isomeric molecule to demonstrate a structural, geometric, and an enantiomer organization.
Organic Chemistry Assignment Score. Name Sec.. Date. Working by yourself or in a group, answer the following questions about the Organic Chemistry material. This assignment is worth 35 points with the
More informationChapter 02. Lecture and Animation Outline
Chapter 02 Lecture and Animation Outline To run the animations you must be in Slideshow View. Use the buttons on the animation to play, pause, and turn audio/text on or off. Please Note: Once you have
More informationChapter 2. Introduction: Chapter Chemical Basis of Life. Structure of Matter:
Chapter 2.1-2.2 Read text 2.1 and describe why chemistry is important in understanding life. Read text 2.2 and discuss how atomic structure determines how atoms interact. Also describe the types of chemical
More informationAn atom is the smallest unit of an element. It has: A general understanding of chemistry is necessary for understanding human physiology.
8/29/11 Chapter 2 I. Atoms, Ions, and Chemical Bonds Chemical Composition of the Body Lecture PowerPoint Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Body
More information2.1 Basic Chemistry 1
2.1 Basic Chemistry 1 A. Introduction 1. Matter anything that takes up space and has mass 2. States of matter a. Solid b. Liquid c. Gas 2 B. Elements and Atoms 1. Elements basic substances that make up
More information1.Matter and Organic Compounds Matter =
The Chemistry of Life Notes Unit 2 1.Matter and Organic Compounds Matter = All things are made of matter Name Matter is made up of substances Chemical substance = definite composition throughout Either
More informationBotany The Nature of Life
Botany The Nature of Life I. Attributes of Living Organisms A. It would seem a simple thing to define life, but it actually isn t. Many of the characteristics of life can be found in nonliving things.
More informationUnit 5 Test. Name: Score: 37 / 37 points (100%)
Name: Score: 37 / 37 points (100%) Unit 5 Test Matching (1 point each) Match each item with the correct statement below a activity series j product b chemical equation k reactant c coefficient l reduction
More informationFull file at https://fratstock.eu
VanMeter: Microbiology for the Healthcare Professional Chapter 02: Chemistry of Life Test Bank MULTIPLE CHOICE 1. The atomic number equals the number of a. Protons b. Neutrons c. Electrons d. Protons and
More information*The entropy of a system may decrease, but the entropy of the system plus its surroundings must always increase
AP biology Notes: Metabolism Metabolism = totality of an organism's chemical process concerned with managing cellular resources. Metabolic reactions are organized into pathways that are orderly series
More informationU2.1.1: Molecular biology explains living processes in terms of the chemical substances involved (Oxford Biology Course Companion page 62).
Unit 11: Biochemistry Study Guide U2.1.1: Molecular biology explains living processes in terms of the chemical substances involved (Oxford Biology Course Companion page 62). 1. Define molecular biology.
More informationis a substance that reduces the activity of an enzyme by entering the active site in place of the substrate whose structure it mimics.
is a substance that reduces the activity of an enzyme by entering the active site in place of the substrate whose structure it mimics. Competitive Inhibitor Identify the following molecule: Polysaccharide
More informationAN INTRODUCTION TO METABOLISM. Metabolism, Energy, and Life
AN INTRODUCTION TO METABOLISM Metabolism, Energy, and Life 1. The chemistry of life is organized into metabolic pathways 2. Organisms transform energy 3. The energy transformations of life are subject
More informationChemical Foundations of Life The origin of life and organic compounds of organisms
Chemical Foundations of Life The origin of life and organic compounds of organisms Atomic Structure Atoms are the smallest units that retain the properties of elements. Atoms are composed of protons, neutrons,
More informationLIFE OF CELL. Jhia Anjela D. Rivera 1,2 1. BS Biology Graduate, Department of Biology, College of Science, Polytechnic University of the Philippines 2
LIFE OF CELL Jhia Anjela D. Rivera 1,2 1 BS Biology Graduate, Department of Biology, College of Science, Polytechnic University of the Philippines 2 MS Biology Student, Graduate School, Centro Escolar
More informationThe Chemical Level of Organization
Scuola di Ingegneria Industriale e dell Informazione Course 096125 (095857) Introduction to Green and Sustainable Chemistry The Chemical Level of Organization Prof. (and Ada Truscello) Dept. CMIC http://iscamap.chem.polimi.it/citterio/education/course-topics/
More informationChapter 2: Fundamentals of Chemistry. Question Type: Multiple Choice. 1) Which of the following pairs is mismatched?
Microbiology Principles and Explorations 9th Edition Black TEST BANK Full clear download at: https://testbankreal.com/download/microbiology-principles-explorations- 9th-edition-black-test-bank/ Microbiology
More information2. In regards to the fluid mosaic model, which of the following is TRUE?
General Biology: Exam I Sample Questions 1. How many electrons are required to fill the valence shell of a neutral atom with an atomic number of 24? a. 0 the atom is inert b. 1 c. 2 d. 4 e. 6 2. In regards
More informationA Brief Overview of Biochemistry. And I mean BRIEF!
A Brief Overview of Biochemistry And I mean BRIEF! Introduction A. Chemistry deals with the composition of substances and how they change. B. A knowledge of chemistry is necessary for the understanding
More informationSHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
ch 2 chemical basis of life Name SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. Fill in the blank or provide a short answer: 1) When a change in matter
More informationBIOL 1030 Introduction to Biology: Organismal Biology. Spring 2011 Section A. Steve Thompson:
BIOL 1030 Introduction to Biology: Organismal Biology. Spring 2011 Section A Steve Thompson: stthompson@valdosta.edu http://www.bioinfo4u.net 1 First, let s look at the syllabus in detail to help clarify
More information