Four elements make up about 90% of the mass of organisms O, C, H, and N
|
|
- Randell Quinn
- 5 years ago
- Views:
Transcription
1 Chapter 2 Chemistry of Life 2-1 Composition of Matter -Mass- quantity of matter- use a balance to measure mass -Weight- pull of gravity on an object- use a scale Elements -cannot be broken down into simpler matter -made of one type of atom Four elements make up about 90% of the mass of organisms O, C, H, and N Periodic table -provides the chemical symbol -Atomic Number- the number of protons -Atomic mass- the number of protons and neutrons Atoms -the simplest particle that retains all the properties of that element Atomic structure -nucleus contains protons (+) and neutrons (neutral) Electrons (-) (abbreviated as e-) orbit the nucleus at various orbitals. Orbitals correspond to specific energy levels 1 P a g e
2 electron Energy levels e- in outer energy levels have more energy neutron -first level holds 2e- (1 orbital) -second level holds 8e- ( 4 orbitals) -a full energy level makes a stable atom (Happy atom) -an incomplete energy level makes a reactive atom. proton Isotopes -all atoms of an element have the same number of protons. -Atoms that have a different number of Neutrons are called isotopes. Ex. C 12 and C 14 Atoms can gain, lose or share electrons Compounds -made of atoms of two or more elements -NaCl and H 2 O are examples -Tendency to form compounds depends on e- in outer energy levels. Chemical reactions combine atoms in ways that make the atoms more stable. Chemical Bonds -attachments between atoms Covalent bonds -two atoms share one or more pairs of electrons. Ex. H 2 O page 33. O shares an electron with each H. H acquires a full energy level (2e-) and O acquires a 2 P a g e
3 full energy level (8e-). Molecules -simplest part of a substance -contains all properties of the substance -exists in a free state Ionic bonds -Ion- an atom or molecule with an electrical charge. (Na + ) -attraction between a positive and a negative ion -sodium (Na) gives an e- to Chlorine (Cl) Na Na +, Cl Cl - Na + + Cl - = NaCl 2-2 Energy Energy- ability to do work States of Matter Solid, liquid, gas -gas has the most movement of molecules -add of take away energy to change states of matter. 3 P a g e
4 Chemical Reactions -energy is absorbed or released when chemical bonds are broken and new bonds form. Reactants Products -the number of atoms must be balanced on both sides of the equation. -a reversible arrow ( )- reaction can go either direction. Exergonic reaction- net release of energy Endergonic reaction- net absorption of energy Activation Energy -the amount of energy needed to start a reaction Catalyst -lowers the activation energy (Often speeds up a reaction because less activation energy is required.) 4 P a g e
5 Enzymes -biological catalysts -they are very specific for each reaction -they are not used up by the reaction. Oxidation Reduction reactions (Redox reactions) -Reduction- a reactant gains an e-, it becomes more negative. -Oxidation- a reactant loses an e-, it becomes more positive. Redox reactions always occur together. 2-3 Water and Solutions Polarity In a water molecule, the O and H do not share the electrons equally. The O end has a slight negative charge ( δ - ), and the H end has a slightly positive charge ( δ + ). Polar Molecules -e- are unevenly shared. -has a slightly + and slightly end -the overall charge on the molecule is neutral. Solubility of Water -waters polarity dissolves many other substances- sugars, some proteins, and ionic compounds(ex. NaCl). -ionic compounds will dissociate in water. -this frees up the ions to participate in many biological reactions 5 P a g e
6 Hydrogen Bonding -bonds form between H atoms (+) in one molecule and the end in other molecules. -this causes water molecules to be attracted to each other. (page 40) -H bonds are weaker bonds -heat can break hydrogen bonds Cohesion and Adhesion Cohesion- attraction between particles of the same type (water to water) Cohesion causes surface tension Adhesion- attraction between unlike particles (water to glass) Capillarity- the attraction between molecules that allows the rise of the surface of a liquid when in contact with a solid ex. the meniscus in a graduated cylinder ) Adhesion, Cohesion and capillarity allow water to move up narrow tubes against the force of gravity. Very important to plants! Temperature Moderation -water has a high heat capacity- it must gain or lose a relatively large amount of heat for the temp. of the water to change. -energy must first break the H bonds holding the molecules together, -H 2 O helps keep cells at even temp. -the oceans help moderate the temp. of earth. 6 P a g e
7 Unlike most substances, solid water is less dense than liquid water. Because of H bonds, ice has a large amount of open space. Therefore, ice is less dense than water, and it floats in water. Page 42. Solutions Solution- one or more substances are evenly distributed in another substance Solute- substance dissolved in the solution Solvent- substance in which the solution is dissolved Example- Solution- soda Solute- sugar, flavorings, salt, CO 2, caffeine, color Solvent- water Concentration- the amount of solute in a fixed amount of solution. Ex. 5% NaCl solution, 5g of NaCl in 100 ml of solution Saturated solution - no more solute will dissolve -ex. Sugar in the bottom of a coffee cup. Aqueous solution 7 P a g e
8 -water is the solvent -very important to living things -cells are in an aqueous solution -most chemical reactions in living organisms occur in aqueous solutions. Acids and Bases Ionization of Water (Dissociation of Water) -breaking apart of water into two ions. H 2 O H + + OH - H + + H 2 O H 3 O + OH - is the hydroxide ion H 3 O + is the hydronium ion In pure water hydronium ions equal hydroxide ions Acids - more hydronium ions than hydroxide ions -often sour -highly corrosive Bases- -more hydroxide ions than hydronium ions -also called alkaline -often bitter 8 P a g e
9 ph Scale = very acidic 7= neutral 14= very alkaline -each step is a factor of 10 (ex. Vinegar (ph 3) has 10,000 times more hydronium ions than water, (ph 7) Buffers -they neutralize small amounts of acids or bases -very important for homeostasis because enzymes work at a specific ph. Enzymes function at very narrow ph ranges! 9 P a g e
Chapter Two (Chemistry of Life)
1 Chapter Two (Chemistry of Life) SECTION ONE: THE COMPOSITION OF MATTER MATTER Everything in the universe is made of matter. Matter is anything that occupies space and has mass. Mass is the quantity of
More informationTHE CHEMISTRY OF LIFE
THE CHEMISTRY OF LIFE ATOMS All living things are made up of matter Atoms are the smallest unit of matter Made up of 3 subatomic particles: 1. Protons- positively charged, found in the nucleus, has mass
More informationChapter 2 Chemistry of Life
Chapter 2 Chemistry of Life 1 21- Atoms, Ions and Molecules An Atom is the smallest basic unit of matter. All atoms share the same basic structure. 2 Atoms consist of three types of particles: Protons,
More informationSeptember 21, Ch 2 Notes. Sep 18 1:29 PM. Sep 18 12:55 PM. Color Your Periodic Table
Color Your Periodic Table Alkali Metals Yellow Alkaline Earth Brown Transition Orange Lanthanide/Actinide Green Other Metals/Metalloids Purple Non metals Blue Noble Gases Red Sep 18 1:28 PM Sep 21 7:43
More information2015 Ch 2 Chem notes.notebook. September 25, Color Your Periodic Table
Color Your Periodic Table Alkali Metals Yellow Alkaline Earth Brown Transition Orange Lanthanide/Actinide Green Other Metals/Metalloids Purple Non metals Blue Noble Gases Red Chapter 2 CHEMISTRY OF LIFE
More informationProper&es of Water. Lesson Overview. Lesson Overview. 2.2 Properties of Water
Lesson Overview Proper&es of Water Lesson Overview 2.2 Properties of Water THINK ABOUT IT Looking back at Earth from space, an astronaut called it the blue planet, referring to the oceans of water that
More informationAtoms. Smallest particles that retain properties of an element. Made up of subatomic particles: Protons (+) Electrons (-) Neutrons (no charge)
Basic Chemistry Atoms Smallest particles that retain properties of an element Made up of subatomic particles: Protons (+) Electrons (-) Neutrons (no charge) Examples of Atoms electron proton neutron Hydrogen
More informationBiochemistry. The study of chemical processes in living organisms. Introduction to Chemistry Properties of Water Acids and Bases.
Biochemistry The study of chemical processes in living organisms. Introduction to Chemistry Properties of Water Acids and Bases Chemistry Of Life Matter Everything living AND non living is made up of matter.
More informationCHAPTER 6--- CHEMISTRY IN BIOLOGY. Miss Queen
CHAPTER 6--- CHEMISTRY IN BIOLOGY Miss Queen SECTION 6.1 Atoms, Elements, Compounds COMPOSITION OF MATTER Matter - Everything in universe is composed of matter Matter is anything that occupies space or
More informationAtoms, Molecules, and Life
1 Atoms, Molecules, and Life The Nature of Matter: Atoms and Molecules Elements All matter is composed of chemical elements, substances that cannot be broken down to other substances by ordinary chemical
More informationWater is one of the few compounds found in a liquid state over most of Earth s surface.
The Water Molecule Water is one of the few compounds found in a liquid state over most of Earth s surface. Like other molecules, water (H2O) is neutral. The positive charges on its 10 protons balance out
More informationThe Water Molecule. Like all molecules, a water molecule is neutral. Water is polar. Why are water molecules polar?
Properties of Water The Water Molecule Like all molecules, a water molecule is neutral. Water is polar Why are water molecules polar? Polarity oxygen atom 8 protons in its nucleus has a much stronger attraction
More informationElectrons In an electrically neutral atom, positive charges of protons are balanced by the negative charges of electrons. Orbital is the volume of spa
Outline Basic Chemistry Chapter 2 Chemical Elements Atoms Isotopes Molecules and Compounds Chemical Bonding Ionic and Covalent Acids and Bases Chemical Elements Matter refers to anything that has mass
More informationChemistry of Life: Water and Solutions
Chemistry of Life: Water and Solutions Unit Objective I can describe the role of organic and inorganic chemicals important to living things. During this unit, we will answer the following very important
More informationAtoms. - Proton - Neutron. - Electron
Chemistry of Life Atoms - The basic unit of matter is called an Atom - Atoms are incredibly small, but despite its extremely small size, an atom contains subatomic particles that are even smaller - Three
More informationLet s Review Bonding. Chapter 3 Water and Life 7/19/2016 WATER AND SOLUTIONS. Properties of Water
Let s Review Bonding Chapter 3 Water and Life Covalent Ionic Hydrogen Van der Waals Interactions Between nonmetals Between metal and non-metal All important to life H bonds to other electronegative atoms
More information2.1 The Nature of Matter
2.1 The Nature of Matter Lesson Objectives Identify the three subatomic particles found in atoms. Explain how all of the isotopes of an element are similar and how they are different. Explain how compounds
More informationMs. Levasseur Biology
Ms. Levasseur Biology Atom: the actual basic unit - composed of protons, neutrons, and electrons Element: a substance that cannot be broken down into simpler substances pure Molecule: a substance made
More informationLife s Chemical Basis. Chapter 2
Life s Chemical Basis Chapter 2 Why are we studying chemistry? Chemistry is the foundation of biology Atoms Determine the behavior of elements make up all living things Building blocks of all substances
More informationChapter Chemical Elements Matter solid, liquid, and gas elements atoms. atomic symbol protons, neutrons, electrons. atomic mass atomic number
Chapter 2 2.1 Chemical Elements 1. Matter is defined as anything that takes up space and has mass. 2. Matter exists in three states: solid, liquid, and gas. A. Elements 1. All matter (both living and non-living)
More informationLife s Chemical Basis
Life s Chemical Basis Life s Chemical Basis Ø Atoms and Elements Ø Why Electrons Matter Ø Atomic Bonds Ø Water molecule properties Ø Hydrogen Power (ph) Matter & Elements Ø Matter is anything that occupies
More informationChapter 2: Chemical Basis of Life
Chapter 2: Chemical Basis of Life Honors Biology 2011 1 Chemistry of Life Living organisms are composed of about 25 chemical elements Matter - anything that occupies space and has mass Matter is composed
More informationBasic Chemistry for Biology. Honors Biology
Basic Chemistry for Biology Honors Biology 2013-2014 Composition of Matter Matter - Everything in universe is composed of matter Matter is anything that occupies space or has mass Mass quantity of matter
More informationBASIC CHEMISTRY Organisms and all other things in the universe consist of matter Matter: Elements and Compounds Matter is
Chapter 2 Lecture Notes Essential Chemistry for Biology Biol 100 K. Marr 2009 Topics Discussed in these notes Matter, Elements and Compounds Periodic Table of the Elements: Metals vs. Nonmetals Atomic
More informationWHAT YOU NEED TO KNOW:
WHAT YOU NEED TO KNOW: Examples of endergonic and exergonic reactions. The key role of ATP in energy coupling. That enzymes work by lowering the energy of activation. The catalytic cycle of an enzyme that
More informationChemistry (Refresher)
Chemistry (Refresher) Chemistry Principles: Atomic structure of elements Elements found in living cells: free elements, and elements in organic molecules Chemical bonds: ionic, covalent polar, covalent
More information2-1 The Nature of Matter. Atoms
2-1 The Nature of Matter Atoms What do we call the smallest unit of matter? Who named it? What does it mean in Greek? How many atoms would make a row 1cm long? What does this indicate? Atoms are made up
More informationNORTH CENTRAL HIGH SCHOOL NOTE & STUDY GUIDE. Honors Biology I
NOTE/STUDY GUIDE: Unit 1-2, Biochemistry Honors Biology I, Mr. Doc Miller, M.Ed. North Central High School Name: Period: Seat #: Date: NORTH CENTRAL HIGH SCHOOL NOTE & STUDY GUIDE Honors Biology I Unit
More informationCell Biology. Water, Acids, Bases and Buffers. Water makes up 70-99% of the weight of most living organisms Water
Cell Biology Water, Acids, Bases and Buffers WATER CHEMISTRY Water makes up 70-99% of the weight of most living organisms Water Hydrogen bonded to Oxygen by covalent bond Polar molecule (electrons find
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 informationWater - HW. PSI Chemistry
Water - HW PSI Chemistry Name 1) In a single molecule of water, the two hydrogen atoms are bonded to a single oxygen atom by A) hydrogen bonds. B) nonpolar covalent bonds. C) polar covalent bonds. D) ionic
More informationChapter 2: Chemistry & Life
Chapter 2: Chemistry & Life 1. Atoms 2. Molecules 3. Water 1. Atoms A Generic Atom All Matter is made of Atoms Atoms are the smallest indivisible unit of matter 92 different types of atoms: ELEMENTS Atoms
More informationChapter 2: Chemistry & Life. 1. Atoms. 2. Molecules. 3. Water. 1. Atoms. A Generic Atom
Chapter 2: Chemistry & Life 1. Atoms 2. Molecules 3. Water 1. Atoms A Generic Atom 1 All Matter is made of Atoms Atoms are the smallest indivisible unit of matter 92 different types of atoms: ELEMENTS
More informationName Biology Chapter 2 Note-taking worksheet
Name Biology Chapter 2 Note-taking worksheet The Nature of Matter 1. Life depends on Atoms 1. The study of chemistry starts with the basic unit of matter, the. 2. The atom was first used by the Greek philosopher
More informationProperties of Atoms Watch: http://www.khanacademy.org/science/chemistry/introduction-to-theatom/v/introduction-to-the-atom Write down and define the following vocabulary words (you may use ch. 2.1 of your
More informationWater. Hydrogen Bonding. Polar and Nonpolar Molecules. Water 8/25/2016 H 2 0 :
This image cannot currently be displayed. 8/25/2016 Water Water Life is inextricably tied to water. Single most outstanding chemical property of water is its ability to form hydrogen bonds. Hydrogen Bonding
More informationChapter 2 The Chemistry of Life
Chapter 2 The Chemistry of Life The Water - polarity H 2 O is a polar A water is polar because there is an uneven distribution of electrons between the oxygen and hydrogen atoms. Water Sec. 2-2 Properties
More informationChemistry review. Energy levels: The six most abundant elements of life. Types of bonds. Atom:
Atom: Chemistry review Energy levels: Energy Levels: move around the nucleus in regions. Different levels have different numbers of electrons. Outermost Energy Level: Atoms are most when they have a outermost
More informationName: Class: Date: ID: A
Name: Class: _ Date: _ ID: A Ch 2 Review Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Isotopes are atoms of the same element with the same number of
More informationThe living world has a hierarchy of organizational levels - from molecules to ecosystems
The living world has a hierarchy of organizational levels - from molecules to ecosystems In order to understand the whole, biologists study the parts (reductionism) With each level, new properties EMERGE
More informationChapter 2 The Chemistry of Life. 2.1 The nature of matter
Chapter 2 The Chemistry of Life 2.1 The nature of matter Atoms make up all matter Composed of three parts: Protons, Neutrons, and Electrons Protons and Neutrons are found in the atom s neucleus Electrons
More informationLife is a chemical process
CHEMISTRY FOR LIFE Life is a chemical process Relies on and is subject to chemistry Must obey the laws of physics Biologists study Chemistry because all living things are made of matter. Matter undergoes
More informationTHE CHEMISTRY OF LIFE. The Nature of Matter
THE CHEMISTRY OF LIFE The Nature of Matter What do all of These Pictures Have in Common? And last, but not least GEICO S Gecko! MATTER All matter is made up of different combinations of elements.
More informationChemistry (Outline) Water (Outline) - Polarity of water- hydrogen bonding - Emergent Physical properties of water - Importance for life on Earth
Chemistry (Outline) Chemistry Principles: Atomic structure of elements Elements found in living cells: free elements, and elements in organic molecules Chemical bonds: compound and molecules (Polar and
More informationLearning Objectives. Learning Objectives (cont.) Chapter 2: Basic Chemistry 1. Lectures by Tariq Alalwan, Ph.D.
Biology, 10e Mader Lectures by Tariq Alalwan, Ph.D. Learning Objectives Name the principal chemical elements in living things. Compare the physical properties (mass and charge) and locations of electrons,
More informationBiological Chemistry Review
Biological Chemistry Review The understanding the basic chemistry of life is vital to a full comprehension of biology. Atom: smallest part of an element that displays the properties of that element made
More information2-1 Atoms consist of protons, neutrons, and electrons
2-1 Atoms consist of protons, neutrons, and electrons The smallest particle of matter that still retains the properties of an element is an atom Subatomic Particles An atom is made up of protons and neutrons
More informationAtoms. Atoms 9/9/2015
The Chemistry of Life The Nature of Matter, Water,Carbon Compounds, Chemical Reactions and Enzymes The Nature of Matter B.1.9 Both living and nonliving things are composed of compounds, which are themselves
More informationWhat Are Atoms? Chapter 2: Atoms, Molecules & Life
Chapter 2: Atoms, Molecules & Life What Are Atoms? An atom are the smallest unit of matter. Atoms are composed of Electrons = negatively charged particles. Neutrons = particles with no charge (neutral).
More informationChapter 02 The Chemical Basis of Life I: Atoms, Molecules, and Water
Chapter 02 The Chemical Basis of Life I: Atoms, Molecules, and Water Multiple Choice Questions 1. The atomic number of an atom is A. the number of protons in the atom. B. the number of neutrons in the
More informationNature of Molecules. Chapter 2. All matter: composed of atoms
Nature of Molecules Chapter 2 Atomic Structure All matter: composed of atoms Understanding structure of atoms critical to understanding nature of biological molecules 2 1 Atomic Structure Atoms composed
More informationBiology. Slide 1 of 40. End Show. Copyright Pearson Prentice Hall
Biology 1 of 40 2-1 The Nature of Matter 2 of 40 2-1 The Nature of Matter Atoms Atoms The study of chemistry begins with the basic unit of matter, the atom. 3 of 40 2-1 The Nature of Matter Atoms Placed
More informationChapter 2. The Chemical Basis of Life. Lecture by Richard L. Myers
Chapter 2 The Chemical Basis of Life PowerPoint Lectures for Biology: Concepts & Connections, Sixth Edition Campbell, Reece, Taylor, Simon, and Dickey Lecture by Richard L. Myers 2.7 Ionic bonds are attractions
More informationEver come to work. And get the feeling it s not going to be such a good day?
Ever come to work And get the feeling it s not going to be such a good day? Water The Key To Life On Earth (or one of them, anyway) Why Water Is Your Friend Water has several properties which make life
More informationCh. 8 - Solutions, Acids & Bases. Solution = a homogeneous mixture of 2 or more substances
Ch. 8 - Solutions, Acids & Bases Solution = a homogeneous mixture of 2 or more substances Solute substance whose particles are dissolved in a solution Solvent substance in which the solute dissolves in
More informationCHAPTER 2. Life s Chemical Basis
CHAPTER 2 Life s Chemical Basis The Chemistry of Life We are made up of elements. Atoms of one kind make up an element. Atoms are the smallest unit of an element still maintaing the element s properties.
More informationTwo or more atoms bonded together are called a molecule. o 2 electrons fill the first shell o 8 electrons fill every other shell
Atoms aren t alive but they spend their entire existence transitioning from instability to stability. An atom is stable if its outermost shell is filled with electrons. If two atoms are missing electrons
More informationCHEMISTRY. 2 Types of Properties Associated with Matter. Composition of Matter. Physical: properties that do not change the identity of the substance
CHEMISTRY Composition of Matter Matter Mass Anything that occupies space and has mass Quantity of matter an object has Weight Pull of gravity on an object 2 Types of Properties Associated with Matter Physical:
More informationBIOCHEMISTRY NOTES - UNIT 2-
BIOCHEMISTRY NOTES - UNIT 2- ATOMS - the basic unit of matter. Contains subatomic particles o (+ charge) o (no charge/neutral) o (- charge) Protons and neutrons have about the same mass. Electrons are
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 information4. A hydrogen bond is formed between a hydrogen atom and a negative atom, usually a nitrogen or oxygen.
Name Biology Summer Assignment Print, complete and bring this assignment with you on the first day of classes. Use the background information document to help you complete this assignment. Modified True/False
More informationChapter 3. Water and the Fitness of the Environment
Chapter 3 Water and the Fitness of the Environment 1 Importance of water Overview: The Molecule That Supports All of Life Water is the biological medium here on Earth All living organisms require water
More informationI. ELEMENTS & ATOMS: Name: Period: Date:
Name: Period: Date: I. ELEMENTS & ATOMS: = A substance that cannot be broken down into simpler substances o Periodic Table 1-92 occur in (natural elements) 93 and above are (man-made) Natural Elements:
More informationCHAPTER 3 ATOMS ATOMS MATTER 10/17/2016. Matter- Anything that takes up space (volume) and has mass. Atom- basic unit of matter.
CHAPTER 3 MATTER Matter- Anything that takes up space (volume) and has mass. Matter Combining Matter States of Matter Atom- basic unit of matter. Subatomic particles- protons, neutrons, and electrons.
More informationfile:///biology Exploring Life/BiologyExploringLife04/
Objectives Describe the structure of a water molecule. List and describe water's unique properties. Distinguish between an acid and a base. Explain how Earth's conditions are fit for life. Key Terms polar
More informationEvery living and nonliving things is made up of matter. MATTER: anything that has mass & takes up space. What does all matter have in common?
the basics Every living and nonliving things is made up of matter MATTER: anything that has mass & takes up space What does all matter have in common? Smallest unit of matter ALL matter is made of particles
More informationThe Properties of Water
The Water Molecule The Properties of Water Chapter 2.2 Polarity Chemical bonds have angles which produce certain molecular structures This makes water molecules have O on one end and H s on the other end
More informationCHEMISTRY OF LIFE. Composition of Matter. Composition of Matter 10/3/14
CHEMISTRY OF LIFE Matter- occupies space and has mass Mass- the quantity of matter an object has Weight- the quantity of matter multiplied by the gravity of the planet you are on. Earth s gravity is 9.8
More information1. Your Roadmap for Success in Chapter 6
1. Your Roadmap for Success in Chapter 6 Preview the chapter: 1. Read Summary (p. 171). 2. Skim the Assessment questions (p. 171-173). 3. Rewrite Learning Objectives for the chapter and each section in
More informationmay contain one or more neutrons
Biology 115 Fall 2001 Campos/Saupe Atoms and Molecules I. Introduction - living things are composed of the same chemical elements as the nonliving world and obey the same physical and chemical laws - living
More informationLone pairs as thieves
Lone pairs These are valence orbitals that are full, but that does not mean that they do not participate in bonding If an ion with a positive charge comes close enough, the lone pair may attract it and
More information2.1-2 Chemistry and Water
Prepared by Kim Foglia. Adapted and modified by Nhan Pham. 2.1-2 Chemistry and Water Objectives Discuss why we study chemistry in biology Review structure of an atom Explain the role of valence electrons
More informationBiology Unit 2 Chemistry of Life (Ch. 6) Guided Notes
Name Biology Unit 2 Chemistry of Life (Ch. 6) Guided Notes Atoms, Elements, and Chemical Bonding I can draw atom models and identify the # protons, # neutrons, and # electrons in an atom. I can identify
More informationH = Hydrogen atoms O = Oxygen atoms
CHEMISTRY CP Name: KEY Period: TEST DATE: Unit 8 Review Sheet KEY: Properties of Water, Solutions, Concentration, Acids and Bases PROPERTIES OF WATER 1. Define the following terms: polarity, surface tension,
More information2-2 Properties of Water. Copyright Pearson Prentice Hall
2-2 Properties of Water Water Water is the most important molecule on earth. Because of its unique shape and chemical behavior it easily bonds with other molecules, and itself. Water: Covalent Bond Water
More informationBIOLOGY 101. CHAPTER 3: Water and Life: The Molecule that supports all Live
BIOLOGY 101 CHAPTER 3: Water and Life: The Molecule that supports all Live The Molecule that Supports all Life CONCEPTS: 3.1 Polar covalent bonds in water molecules result in hydrogen bonding 3.2 Four
More informationChapter Two Test Chemistry. 1. If an atom contains 11 protons and 12 neutrons, its atomic number is A. 1 C. 12 B. 11 D. 23
Name Chapter Two Test Chemistry 1. If an atom contains 11 protons and 12 neutrons, its atomic number is A. 1 C. 12 B. 11 D. 23 2. The nucleus is made up of all of the following: A. Electrons C. Protons
More informationChapter 2 The Chemical Basis of Life
Chapter 2 The Chemical Basis of Life PowerPoint Lectures for Campbell Biology: Concepts & Connections, Seventh Edition Reece, Taylor, Simon, and Dickey Lecture by Edward J. Zalisko Figure 2.0_2 Chapter
More informationChapter 2 The Chemical Basis of Life
Chapter 2 The Chemical Basis of Life Figure 2.0_2 Chapter 2: Big Ideas PowerPoint Lectures for Campbell Biology: Concepts & Connections, Seventh Edition Reece, Taylor, Simon, and Dickey Elements, Atoms,
More informationSection Objectives: Section Objectives: Distinguish mixtures and solutions. Define acids and bases and relate their importance to biological systems.
Section Objectives: Relate the structure of an atom to the identity of elements. Relate the formation of covalent and ionic chemical bonds to the stability of atoms. Section Objectives: Distinguish mixtures
More information**Refer to your pre-lecture notes for all the sections we will be covering to help you keep an eye on the big picture
Section 1: Human Organization and the chemistry of life **Refer to your pre-lecture notes for all the sections we will be covering to help you keep an eye on the big picture Biology Bio = life ology =
More informationThe Extraordinary Properties of Water
The Extraordinary Properties of Water Chemical Elements and Water Elements Substances that cannot be broken down into different components by chemical means Atoms The smallest particle of an element, Protons
More information2-2 Properties of Water
22 Properties of Water Polarity As for most molecules, the and charges in a water molecule are equal so that overall the molecule is neutral. However, note that the molecule is not linear. The water molecule
More informationIntroduction to Chemistry (includes bonding, water, and ph) C1
Introduction to Chemistry (includes bonding, water, and ph) C1 Do Now: What are atoms made up of and list the location of each particle. Finish up Labs Chemistry review Homework: Read, take notes on 2.1
More informationOverview: The Molecule That Supports All of Life
Overview: The Molecule That Supports All of Life Water is the biological medium on Earth All living organisms require water more than any other substance Most cells are surrounded by water, and cells themselves
More information2.1. KEY CONCEPT All living things are based on atoms and their interactions. 34 Reinforcement Unit 1 Resource Book
2.1 ATOMS, IONS, AND MOLECULES KEY CONCEPT All living things are based on atoms and their interactions. All matter, whether living or nonliving, is made of the same tiny building blocks, called atoms.
More informationMATTER AND THE ENVIRONMENT. Environmental Science Chapter 3 Lesson 1 Textbook pgs
MATTER AND THE ENVIRONMENT Environmental Science Chapter 3 Lesson 1 Textbook pgs. 64-71 ATOMS The atom is the most basic unit of matter. Atoms are incredibly small. Placed side by side, 100 million atoms
More informationGeneral Biology 1004 Chapter 2 Lecture Handout, Summer 2005 Dr. Frisby
Slide 1 BIOLOGY AND SOCIETY: FLUORIDE IN THE WATER There has been a sharp decline in tooth decay in the last few decades The use of fluoride in drinking water illustrates the point that organisms are chemical
More informationWhy Water Is Your Friend
Why Water Is Your Friend Water has several properties which make life possible. Transparency Cohesion Capillary action Surface tension: watch this Fluid nature Temperature buffer Solvent ability 2.A.3.a.3.
More informationCHAPTER 2--LIFE'S CHEMICAL BASIS
CHAPTER 2--LIFE'S CHEMICAL BASIS Student: 1. People are most likely to ingest large amounts of mercury by eating A. soy products. B. chicken. C. beef. D. large predatory fish. E. small herbivorous fish.
More informationCHAPTER 2 LIFE'S CHEMICAL BASIS MULTIPLE CHOICE. ANS: C PTS: 1 DIF: Moderate OBJ: Bloom's Taxonomy: Knowledge. Mercury Rising
TEST BANK FOR BIOLOGY THE UNITY AND DIVERSITY OF LIFE 13TH EDITION BY CECEI STARR Link download full:https://digitalcontentmarket.org/download/test-bank-for-biology-the-unity-and-div ersity-of-life-13th-edition-by-cecei-starr
More informationCP Physical Science Chemistry: Bell Work, Notes, Study Guides
CP Physical Science Chemistry: Bell Work, Notes, Study Guides Mr. Banker Fall 2014 ian_banker@charleston.k12.sc.us http://wandohigh.ccsdschools.com/directory/science/banker_ian/physical_science/ Remind101.com
More informationChapter 2 Basic Chemistry Outline
Chapter 2 Basic Chemistry Outline 1.0 COMPOSITION OF MATTER 1.1 Atom 1.2 Elements 1.21 Isotopes 1.22 Radioisotopes 1.3 Compounds 1.31 Compounds Formed by Ionic Bonding 1.32 Compounds Formed by Covalent
More informationPhysical Science Lecture Notes Chapters 17, 18 & 19
Physical Science Lecture Notes Chapters 17, 18 & 19 I. 17-1: Matter & Its Changes a. Changes in matter i. Physical Changes Alters form or appearance but doesn t change it into another substance ie. Water
More informationThe Biological Importance of Water
The Biological Importance of Water Why is water important? Major component of all living systems and our planet. Occupies most of a cells volume. Has major properties that living systems require. Water
More informationChemistry in Biology. Section 1. Atoms, Elements, and Compounds
Section 1 Atoms, Elements, and Compounds Atoms! Chemistry is the study of matter.! Atoms are the building blocks of matter.! Neutrons and protons are located at the center of the atom.! Protons are positively
More informationDefinition of Matter. Subatomic particles 8/20/2012
Interplay of Biology and Chemistry Here is a link to the video these beetles are fairly common locally an amazing adaptation, and a good example of chemistry and physics in biology. Also look for creationist-evolutionist
More informationBiology. Chapter 2 Notes
Biology Chapter 2 Notes Section 1: Nature of Matter Objectives: 1) Differentiate between atoms and elements 2) Analyze how compounds are formed 3) Distinguish between covalent bonds, hydrogen bonds and
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 informationThe Chemistry of Life 2007-
The Chemistry of Life 2007- Why are we studying chemistry? Chemistry is the foundation of Biology The World of Elements H NaMg K Ca C N O P S Different kinds of atoms = elements Life requires ~25 chemical
More information