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    • Anatomy Basics
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      • Anatomy of the Cell SAC
      • Membrane Transport
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      • mitosis
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      • The Integumentary System
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      • joints
    • The Muscular System Portal
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      • Muscles - Intramuscular Injection Sites - WCU
      • Muscles of the Body - Review
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      • Introduction to the Nervous System
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      • Intro to the Circulatory System
      • THE HEART
      • HEART DISSECTION PHOTO GALLERY
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    • dissection of the fetal pig
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    • Homeostasis - Physio
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    • Portal to the Skeletal system
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  • CMC Physiology Lab
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    • Case Study One
  • Anat & Physio
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      • The Epidermis
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    • Course Calendar - BIO 3070
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    • Evolution of Human Pregnancy
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    • The Menstrual Cycle
    • The Male Reproductive System and Male Contraception
    • Fertility and Conception
    • In-Vitro Fertilization
    • Infertility
    • Genetics of Reproduction
    • Prenatal and Maternity Care
    • The Pregnant Body
    • fetal development
    • Development of the Nervous System
    • Stages of Labor
    • Postpartum Issues
    • Twins
  • Chemistry
    • pH Lab
    • The Chemistry of Cells - ORGANIC
      • VOLCANO LAB
    • Volcano Project
  • College/Life Skills
    • Online Professionalism
    • Advising Resources
    • INTERVIEW SKILLS AND RESUME WRITING
    • DIVERSITY
    • CAMPUS EVENTS
      • Predation
    • Time Management
  • Environmental Science
    • MIDTERM 2 STUDY GUIDE
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    • ENVS 105 Home Page
      • Midterm 3 Study Guide Population Ecology
      • Ecology II - Communities and Ecosystems
      • Module 1 Assignments
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    • Inrtoduction to ENV SCI
    • Historical Perspective of ​Environmental Science
    • Biomes
    • FOOD CHAIN and FOOD WEB
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    • Evolution - Our Beginning
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    • Evolution: How Populations Change over Time
    • Symbiosis
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    • Fossil Fuels
  • Environmental Biology Laboratory
    • SOILS AND GROUNDWATER
    • Ecological Roles of Living Organisms
      • The Basics
      • Bacteria - Ecological Roles
      • Protists - Ecological Roles
      • Fungus - Ecological Roles
      • Plantae and Animalia - Ecological Roles
    • Virtual FIELD TRIP TO THE RIO HONDO COLLEGE ​WILDLIFE SANCTUARY - Adaptations to Dry Climates
    • Microscopic Plant Adaptations
    • Natural Selection
    • GROWTH CURVES
    • SOILS AND GROUNDWATER
    • LC50 and LD50
    • How to Make a Solar Water Heater
    • WATER QUALITY ANALYSIS
  • General Biology
    • Characteristics of Life
    • Chemistry of Life - Inorganic
    • The Chemistry of Cells - ORGANIC
    • Introduction to The Cell
    • Photosynthesis and cellular Respiration
    • Cell Membranes and Osmosis
    • The Cell Cycle
    • REGULATION of The Cell Cycle
    • Mitosis
    • Meiosis
    • The Structure of DNA
    • Evolution
  • General Biology Laboratory
    • GENERAL BIOLOGY 101 LABORATORY HOME PAGE
      • Enzymes
      • OSMOSIS LAB
      • Lab 1 - Bacteria, Protista and Fungi
      • Lab 2 - Plantae and Animalia
      • Photosynthesis
      • Lab 5 - Introduction to Cells
      • Lab 6 - The Chemistry of Cells
      • Lab 7 - Membrane Transport
      • Lab 8 - Enzymes
      • Lab 9 - Photosynthesis
      • Lab 10 Fermentation, Aerobic Cellular Respiration and Associated Major Organ Systems
    • GENERAL BIO 1110L Labs
      • lab 2 - CELLS - BIO 111L
      • lab 3 - DIFFUSION and OSMOSIS - BIO 111L
      • lab 4 - The Circulatory System - BIO 111L
      • lab 6 - Photosynthesis and Cellular Respiration
      • lab 7 - Reproduction - BIO 111L
      • DNA, GENES AND GENETIC INHERITANCE
      • lab 9 - GENE EXPRESSION AND PROTEIN SYNTHESIS
      • lab 10 - ADAPTATIONS - BIO 111L
      • lab 11 - ECOSYSTEMS AND BIODIVERSITY
  • Human Biology
    • A History of Human Biology
    • Levels of Organization
    • The Chemistry of Cells - ORGANIC
    • Cells
    • Cartilage SAC
    • BONES AND SKELETAL TISSUES
  • Human Biology Lab
    • Testing for Sugar, Starch and Proteins
    • Osmosis, Diffusion and Filtration
    • buffers
    • OSMOSIS LAB
    • Anatomical Planes
    • Body Cavities and Membranes
    • Anatomical Positions
    • The Appendicular Skeleton
    • The SKULL
    • the Thoracic Cage
    • the vertebral column
  • Human Sexuality
    • Course Information
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    • Lesson 1 - Introduction to Human Sexuality
    • Lesson 2 - Genetic Inheritance of Human Sexuality
    • Lesson 3 - The Male Reproductive Tract
    • Lesson 4 - The Female Reproductive Tract
    • Lesson 5 - The Menstrual Cycle
    • Midterm Exam Study Guide
    • Lesson 6 - Fetal Development and Sexual Differentiation
    • Lesson 7 - Disorders of Sexual Development
    • Lesson 8 - Gender Identity and Sexual Attraction
    • Lesson 9 - Fetishism
    • Lesson 10 - Sexuality Throughout the World
    • ​Lesson 11 - Sexuality Through the Ages
    • Lesson 12 - Sexual Harassment, Coercion and Violence
    • Final Exam Study Guide
  • Microbiology PORTAL
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      • MIC- CPP Course Calendar
    • Cell Theory
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  • Microbiology Laboratory
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    • aseptic technique
    • WET MOUNT
    • Streak Plate
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    • Eosin Methylene Blue (EMB)
    • Blood Agar
    • Dilution Series and Calculations
    • Phage Plaque Assay
    • MICROBIOLOGY UNKNOWN LAB
    • Microbiology Lab -study guide exam one
    • Ex 2 - Microorganisms
    • EX 3 - aseptic technique
    • Ex 4 - Smear Prep
    • Ex 5 - Simple Stains
    • Ex 6 - Negative Staining
    • Ex 8 - Gram Stain
    • Ex 9 - Acid-Fast Stain
    • Ex 10 - Endospore Stain
    • Ex 11 - Motility Test
    • ex 12 -​ Pure culture technique
    • ex 13 - UV Radiation
    • Ex 14 - Enumeration of Bacteria : Standard Plate Count
    • ex - 15 Effects of Temperature on Growth
    • ex 16 - Hand-washing
    • ex 17 - pH and microbial growth
    • ex 18 - Evaluation of Antiseptics
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    • Brittney the Kidney
    • From Soup to Poop
    • MITOSIS - THE NURSERY RHYME
    • Verne the Sperm and friends
      • Verne the Sperm pg1
        • Verne the Sperm pg2
        • Verne the Sperm pg3
        • Verne the Sperm pg4
        • Verne the Sperm pg5
  • Lab 6 - The Chemistry of Cells
  • A History of Anatomy
  • List of Pages
    • Microscopes
  • Cell Membranes and Osmosis
  • Chemistry of Life
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  • The Muscles of the Head, Trunk and Shoulders
  • The Muscles of the Limbs
  • Nervous Tissue
  • The Brain - Anat and Physiology
  • Instructions for Taking BIO 3070
  • MTH 121 Algebra A - Course Schedule and Info
  • Laboratory Calendar CMC Spring 2019
  • Genetics Lab
  • Chemistry and Conversions Lab
  • Digestion and Enzymes Lab
  • Endocrine and Homeostasis Lab
  • Muscles and Reflexes Lab
  • Sensory Lab
  • Immunohistochemistry
  • Blood Lab
  • Heart Rate, Blood Pressure, Electrocardiogram Lab
  • Respiratory Lab
  • Lab 11 Renal Lab
  • Blood Typing Game
  • Body Systems Interactive
  • Ch 9 - The Central Nervous System
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  • Neuron Virtual Laboratory
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  • New Page
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  • Anatomy
    • Anatomy - CMC Home Page
      • Practical Exam #2 REDEMPTION EXAM!
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    • Anatomy Basics
      • Intro to Anatomy
      • Medical Terminology
      • A History of Anatomy
      • Levels of Organization
      • Anatomical Positions
      • Anatomical Planes
      • Anatomical Regions
      • Body Cavities and Membranes
    • Cells Portal
      • Anatomy of the Cell SAC
      • Membrane Transport
      • The Cell Cycle
      • REGULATION of The Cell Cycle
      • BLOOD CELLS
      • mitosis
    • Tissues Portal SAC
      • The Integumentary System
      • Epithelial Tissues
      • Connective Tissue
      • Muscle Tissue
      • BONES AND SKELETAL TISSUES
      • Cartilage SAC
    • Organ Systems
    • Portal to the Skeletal system
      • The SKULL ANATOMY
      • the Thoracic Cage
      • the vertebral column
      • The Appendicular Skeleton
      • BONES AND SKELETAL TISSUES
      • joints
    • The Muscular System Portal
      • Muscle Tissue
      • Muscles - Intramuscular Injection Sites - WCU
      • Muscles of the Body - Review
    • The Nervous System
      • Introduction to the Nervous System
      • Nervous Tissue
      • The Brain - Anat
      • The Ear - Sensory Organs
      • The Eye - Sensory Organs
    • THE REPRODUCTIVE SYSTEM
    • The Renal System
    • The Respiratory System
    • THE CIRCULATORY SYSTEM PORTAL
      • Intro to the Circulatory System
      • THE HEART
      • HEART DISSECTION PHOTO GALLERY
      • THE VESSELS OF BLOOD CIRCULATION
    • Digestive System
    • Animal Dissection (Virtual)
    • dissection of the fetal pig
  • Physiology
    • Homeostasis - Physio
    • Chemical Reactions - Physio
    • Chemistry of Life - Inorganic - Physio
    • The Chemistry of Cells - ORGANIC - Physio
    • Chemical Bonds - Physio
    • Metabolism - Physio
    • Portal to the Skeletal system
    • Endocrine and Homeostasis physio
    • Muscle Physiology
    • Blood
    • Cardiovascular System
    • Lymphatic System
    • Respiratory System Physiology
    • Renal System
    • Digestive System
    • Reproductive System
  • CMC Physiology Lab
    • Lab 1 - Surface Area to Volume Ratios
    • Lab 2 - Osmosis
    • Lab 4 - Heart Rate and Barometers
    • Lab 5 - Virtual Neuron Lab
    • Case Study One
  • Anat & Physio
    • The Muscular System Portal
    • The Integumentary System a&p
      • The Epidermis
      • The Dermis
      • The Epidermis rio
      • Connective Tissue
  • Biology of Human Pregnancy
    • Course Calendar - BIO 3070
    • Bio of Pregnancy - SYLLABUS
    • Course Information
    • Evolution of Human Pregnancy
    • History of Human Pregnancy
    • Myths of Pregnancy and Fertility
    • Female Reproductive System
    • The Menstrual Cycle
    • The Male Reproductive System and Male Contraception
    • Fertility and Conception
    • In-Vitro Fertilization
    • Infertility
    • Genetics of Reproduction
    • Prenatal and Maternity Care
    • The Pregnant Body
    • fetal development
    • Development of the Nervous System
    • Stages of Labor
    • Postpartum Issues
    • Twins
  • Chemistry
    • pH Lab
    • The Chemistry of Cells - ORGANIC
      • VOLCANO LAB
    • Volcano Project
  • College/Life Skills
    • Online Professionalism
    • Advising Resources
    • INTERVIEW SKILLS AND RESUME WRITING
    • DIVERSITY
    • CAMPUS EVENTS
      • Predation
    • Time Management
  • Environmental Science
    • MIDTERM 2 STUDY GUIDE
    • Exam 2 Study Guide
    • ENVS 105 Home Page
      • Midterm 3 Study Guide Population Ecology
      • Ecology II - Communities and Ecosystems
      • Module 1 Assignments
      • Module 2 Assignments
    • Inrtoduction to ENV SCI
    • Historical Perspective of ​Environmental Science
    • Biomes
    • FOOD CHAIN and FOOD WEB
    • Biogeochemical Recycling
    • Evolution - Our Beginning
    • Genetic Inheritance
    • Evolution: How Populations Change over Time
    • Symbiosis
    • Population Ecology
    • Competition in Nature
    • Herbivory
    • Niches
    • Fossil Fuels
  • Environmental Biology Laboratory
    • SOILS AND GROUNDWATER
    • Ecological Roles of Living Organisms
      • The Basics
      • Bacteria - Ecological Roles
      • Protists - Ecological Roles
      • Fungus - Ecological Roles
      • Plantae and Animalia - Ecological Roles
    • Virtual FIELD TRIP TO THE RIO HONDO COLLEGE ​WILDLIFE SANCTUARY - Adaptations to Dry Climates
    • Microscopic Plant Adaptations
    • Natural Selection
    • GROWTH CURVES
    • SOILS AND GROUNDWATER
    • LC50 and LD50
    • How to Make a Solar Water Heater
    • WATER QUALITY ANALYSIS
  • General Biology
    • Characteristics of Life
    • Chemistry of Life - Inorganic
    • The Chemistry of Cells - ORGANIC
    • Introduction to The Cell
    • Photosynthesis and cellular Respiration
    • Cell Membranes and Osmosis
    • The Cell Cycle
    • REGULATION of The Cell Cycle
    • Mitosis
    • Meiosis
    • The Structure of DNA
    • Evolution
  • General Biology Laboratory
    • GENERAL BIOLOGY 101 LABORATORY HOME PAGE
      • Enzymes
      • OSMOSIS LAB
      • Lab 1 - Bacteria, Protista and Fungi
      • Lab 2 - Plantae and Animalia
      • Photosynthesis
      • Lab 5 - Introduction to Cells
      • Lab 6 - The Chemistry of Cells
      • Lab 7 - Membrane Transport
      • Lab 8 - Enzymes
      • Lab 9 - Photosynthesis
      • Lab 10 Fermentation, Aerobic Cellular Respiration and Associated Major Organ Systems
    • GENERAL BIO 1110L Labs
      • lab 2 - CELLS - BIO 111L
      • lab 3 - DIFFUSION and OSMOSIS - BIO 111L
      • lab 4 - The Circulatory System - BIO 111L
      • lab 6 - Photosynthesis and Cellular Respiration
      • lab 7 - Reproduction - BIO 111L
      • DNA, GENES AND GENETIC INHERITANCE
      • lab 9 - GENE EXPRESSION AND PROTEIN SYNTHESIS
      • lab 10 - ADAPTATIONS - BIO 111L
      • lab 11 - ECOSYSTEMS AND BIODIVERSITY
  • Human Biology
    • A History of Human Biology
    • Levels of Organization
    • The Chemistry of Cells - ORGANIC
    • Cells
    • Cartilage SAC
    • BONES AND SKELETAL TISSUES
  • Human Biology Lab
    • Testing for Sugar, Starch and Proteins
    • Osmosis, Diffusion and Filtration
    • buffers
    • OSMOSIS LAB
    • Anatomical Planes
    • Body Cavities and Membranes
    • Anatomical Positions
    • The Appendicular Skeleton
    • The SKULL
    • the Thoracic Cage
    • the vertebral column
  • Human Sexuality
    • Course Information
    • Course Calendar
    • Lesson 1 - Introduction to Human Sexuality
    • Lesson 2 - Genetic Inheritance of Human Sexuality
    • Lesson 3 - The Male Reproductive Tract
    • Lesson 4 - The Female Reproductive Tract
    • Lesson 5 - The Menstrual Cycle
    • Midterm Exam Study Guide
    • Lesson 6 - Fetal Development and Sexual Differentiation
    • Lesson 7 - Disorders of Sexual Development
    • Lesson 8 - Gender Identity and Sexual Attraction
    • Lesson 9 - Fetishism
    • Lesson 10 - Sexuality Throughout the World
    • ​Lesson 11 - Sexuality Through the Ages
    • Lesson 12 - Sexual Harassment, Coercion and Violence
    • Final Exam Study Guide
  • Microbiology PORTAL
    • Microbiology - CPP
      • ​Intro to Microorganisms
      • Diseases
      • EPIDEMIOLOGY
      • HOST DEFENSES
      • PATHOGENICITY
      • History of Microbiology
      • Levels of Organization cpp
      • Bacteria versus Archaea
      • Intro. to Bacteria
      • Viruses and Prions
      • Microbial Genetics
      • Microbial Nutrition and Growth
        • Nutritional Categories
        • Microbial Metabolism
        • CONTROL OF BACTERIA GROWTH AND ANTIBIOTICS
      • Eukaryotic Organisms
      • Archaeal Diversity
      • Prokaryotic and Eukaryotic Cells
      • Bacteria vs Archaeal Structures
      • Taxonomic Classifications
      • Archaea, Bacteria and Eukaryotic Cells
      • MIC- CPP Course Calendar
    • Cell Theory
    • Chemistry of Life
      • Chemical Bonds
      • Chemical Reactions
    • Biofilms
    • Definition of Terms
  • Microbiology Laboratory
    • Cell Culture and Inoculations
    • aseptic technique
    • WET MOUNT
    • Streak Plate
    • Mannitol salt agar (MSA) Test
    • Eosin Methylene Blue (EMB)
    • Blood Agar
    • Dilution Series and Calculations
    • Phage Plaque Assay
    • MICROBIOLOGY UNKNOWN LAB
    • Microbiology Lab -study guide exam one
    • Ex 2 - Microorganisms
    • EX 3 - aseptic technique
    • Ex 4 - Smear Prep
    • Ex 5 - Simple Stains
    • Ex 6 - Negative Staining
    • Ex 8 - Gram Stain
    • Ex 9 - Acid-Fast Stain
    • Ex 10 - Endospore Stain
    • Ex 11 - Motility Test
    • ex 12 -​ Pure culture technique
    • ex 13 - UV Radiation
    • Ex 14 - Enumeration of Bacteria : Standard Plate Count
    • ex - 15 Effects of Temperature on Growth
    • ex 16 - Hand-washing
    • ex 17 - pH and microbial growth
    • ex 18 - Evaluation of Antiseptics
    • ex 19 - Antibiotic Sensitivity : Kirby-Bauer Method
  • HISTOTECHNOLOGY
  • The Brain
  • The Brain
  • The Structure of DNA
  • Contact
  • FUN ZONE
    • GAMES
    • Video Vault
    • Population Ecology - ACTIVITY
    • The Carbon Cycle - ACTIVITY
    • Evolution - ACTIVITY
    • The Cell Game
    • SYMBIOSIS ACTIVITY
    • THE LORAX ACTIVITY
    • Brittney the Kidney
    • From Soup to Poop
    • MITOSIS - THE NURSERY RHYME
    • Verne the Sperm and friends
      • Verne the Sperm pg1
        • Verne the Sperm pg2
        • Verne the Sperm pg3
        • Verne the Sperm pg4
        • Verne the Sperm pg5
  • Lab 6 - The Chemistry of Cells
  • A History of Anatomy
  • List of Pages
    • Microscopes
  • Cell Membranes and Osmosis
  • Chemistry of Life
  • Muscle Movements
  • The Muscles of the Head, Trunk and Shoulders
  • The Muscles of the Limbs
  • Nervous Tissue
  • The Brain - Anat and Physiology
  • Instructions for Taking BIO 3070
  • MTH 121 Algebra A - Course Schedule and Info
  • Laboratory Calendar CMC Spring 2019
  • Genetics Lab
  • Chemistry and Conversions Lab
  • Digestion and Enzymes Lab
  • Endocrine and Homeostasis Lab
  • Muscles and Reflexes Lab
  • Sensory Lab
  • Immunohistochemistry
  • Blood Lab
  • Heart Rate, Blood Pressure, Electrocardiogram Lab
  • Respiratory Lab
  • Lab 11 Renal Lab
  • Blood Typing Game
  • Body Systems Interactive
  • Ch 9 - The Central Nervous System
  • Ch 10 - Sensory Systems
  • Neuron Virtual Laboratory
  • Virtual Eye Lab
  • Virtual pH Lab
  • Chemical Bonds Virtual Lab
  • Beer's Law Virtual Lab
  • Build-an-Atom Virtual Lab
  • Diffusion Virtual Lab
  • Ohm's Law Virtual Lab
  • New Page
  • Ch 8 - Nervous System

Chemical Reactions 

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Biochemical Reactions 

   What is an "organic" molecule?

    The word "organic" has a very different meaning in the sciences, than it does in the grocery store. In the grocery store "organic" usually means that the food item is free of pesticides, artificial preservatives or genetic modification.
    In the sciences, organic molecules are the molecules required for 
life!  These molecules can be identified by their long chains or rings of carbon atoms which usually also contain a combination of hydrogen, oxygen, and nitrogen. 
The four major classes of biological macromolecules are
  1. carbohydrates,
  2. lipids,
  3. proteins, and
  4. nucleic acids.
Chemical Structure of Nucleic Acids
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Nucleic acids contain carbon in a ring form
Chemical Structure of Lipids
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Lipids contain carbon in a chain form.
​    Assembling larger molecules from smaller molecules is a common theme in microbiology. These types of reactions are categorized as SYNTHESIS reactions.
Chemical Structure of Carbohydrates
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Carbohydrates contain carbon in a ring form
Chemical Structure of Amino Acids
​(forms proteins)
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Amino acids have carbon in either a string form or a ring form
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​   One of the more common ways for a synthesis reaction to occur is a dehydration or condensation synthesis reaction. In these types of reactions, a hydroxyl group (OH-) and a hydrogen (H+) will be removed from the subunits and water is released as a byproducts.  As this occurs, a strong covalent bond is formed. 

   For example, in a dehydration synthesis reaction, or more simply "a dehydration reaction", the 2 monosaccharides, glucose and fructose, bind forming the disaccharide,  sucrose and 1 water molecule is produced as a byproduct. Sucrose is what we think of a table sugar, that we would purchase as the grocery store. 
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   Many biologically-relevant macromolecules are polymers. Polymers are long strings composed of repeated singular units called monomers. The terms monomer, dimer and polymer are general terms that can be applied to any units that can undergo polymerization.

  Proteins are Polymers of Amino Acids

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   ​For example., amino acids are monomers. When 2 amino acids bind to each other, it is considered a dimer, or more specifically, a dipeptide. When more amino acids bind, it becomes a polymer, meaning "many". If we wanted to be specific, we should call this small string of amino acids, a polypeptide. When this string of amino acids becomes large, we call it a protein. ​

DNA and RNA are Polymers of Nucleic Acids

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DNA and RNA are polymers of nucleotides.
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​   Examples of these monomers and polymers can be found in the sugar you might put in your coffee or tea. Regular table sugar is the disaccharide sucrose (a polymer), which is composed of the monosaccharides fructose and glucose (which are monomers). If we were to string many carbohydrate monomers together we could make a polysaccharide like starch. The prefixes “mono-” (one), “di-” (two),and “poly-” (many) will tell you how many of the monomers have been joined together in a molecule.

Four Classes of Biological Macromolecules

There are four major classes of biological macromolecules:
  • carbohydrates
  • lipids
  • proteins
  • nucleic acids
Each of these types of macromolecules performs a wide array of important functions within the cell; a cell cannot perform its role within the body without many different types of these crucial molecules.
​   Cells are immersed in an aqueous (water-like) environment. the molecules both inside and outside of cells are situated in a water-based (i.e., aqueous) environment, and all the reactions of biological systems are occurring in that same environment.
  •    Carbohydrates, proteins, and nucleic acids are built from small molecular units that are connected to each other by strong covalent bonds. The small molecular units are called monomers (mono means one, or single), and they are linked together into long chains called polymers (poly means many, or multiple). Each different type of macromolecule, except lipids, is built from a different set of monomers that resemble each other in composition and size. 
    polymer: A relatively large molecule consisting of a chain or network of many identical or similar monomers chemically bonded to each other.
  • monomer: A relatively small molecule that can form covalent bonds with other molecules of this type to form a polymer.
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Lipids are not considered polymers, because they are not built from a set of repeating smaller subunits that are very similar in structure and composition.
Picture
    You can also break apart macromolecules into its smaller units. This may be done to release the potential energy in a chemical bond, or to re-purpose the smaller building blocks for forming other molecules. A common way that macromolecules are broken down in the body is through a DECOMPOSITION reaction. 

, where a larger reactant is broken into smaller products. Often in biology, water is one of the reactants used to break a molecule, so it is referred to as a hydrolysis reaction (hydro = “water”; lysis = “break”): C12H22O11 + H2O → C6H12O6 + C6H12O6 Maltose Water Glucose Glucose

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