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Warm-Up. How long can you go without water?. Questions?. What is an atom? What is inside an atom?. Understanding Molecules and Atoms. http:// www.youtube.com/watch?v=cV4jJZCIMPo http://www.youtube.com/watch?v=AfXxZwNLvPA. Chemistry of Life. Chapter 6. By PresenterMedia.com. Element.

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Presentation Transcript
warm up
Warm-Up

How long can you go without water?

questions
Questions?

What is an atom?

What is inside an atom?

understanding molecules and atoms
Understanding Molecules and Atoms

http://www.youtube.com/watch?v=cV4jJZCIMPo

http://www.youtube.com/watch?v=AfXxZwNLvPA

chemistry of life

Chemistry of Life

Chapter 6

By PresenterMedia.com

element
Element

Made up of Atoms

Cannot be broken down into simpler substances

Examples

Hydrogen

Carbon

Oxygen

slide6
Atom

Smallest particle of an element

atom components
Atom Components

Nucleus: Center of the atom

compound
Compound

Made up of chemically combined elements

Can be broken down into its elements

Water is an example, made up of two hydrogen atoms and one oxygen atom

CO2

H2O

NaCl

how many atoms
How Many Atoms…

Are in Glucose?

  • C6H12O6
  • 6 + 12 + 6 =24
  • 24 atoms
covalent bond
Covalent Bond

Formed when two atoms share electrons

HINT: Covalent = Co Captain shares duties

or Co-Pilot shares duties

ionic bond
Ionic Bond

Attractive force between two ions of opposite charges

Ions are negatively and positively charged

hydrogen bond
Hydrogen Bond

Weak chemical bonds involving Hydrogen

polar molecule
Polar Molecule

Molecule with unequal distribution of charge

Example: Water

HINT: Unequal

diffusion
Diffusion

Net movement of particles from an area of high concentration to low concentration

High to Low

dynamic equilibrium
Dynamic Equilibrium

Continuous movement but no overall change in concentration

HINT: Think of a treadmill

metabolism
Metabolism

All of the chemical reactions that take place within an organism.

Example:

  • Eating- the food we eat is turned into energy
slide18
pH

Measures how acidic or basic

Acid: forms hydrogen ions in water H+

  • Below 7

Base: forms hydroxide ions OH- in water

  • Above 7
warm up1
Warm-Up

What do you call a substance made of 2 or more elements?

Atoms

protons

compounds

a.

four types of organic compounds that make up living things
Four Types of Organic Compounds that Make up Living Things

Carbohydrates

Lipids

Proteins

Nucleic Acids

carbohydrates
Carbohydrates
  • Composed of carbon, hydrogen, & oxygen
    • CHO
  • Sugars and Starches (energy sources)
    • Starch comes from plants-mainly grains & potatoes
  • Monosaccharide – mono = 1, saccharide = sugar
    • Ex. Fructose, Glucose
  • Disaccharide
    • Ex. Sucrose – Table Sugar
  • Polysaccaride
    • Ex. Starch, glycogen, cellulose
lipids
Lipids
  • Composed of carbon, hydrogen, & oxygen
    • CHO
  • Energy Storage
  • Insoluble in water and Nonpolar.
  • Fats, Oils, Waxes and steroids
proteins
Proteins
  • Composed of carbon, hydrogen, oxygen, nitrogen
    • CHON
  • Provide structure for tissues & organs
    • Abundant in muscle
  • Amino Acids – building blocks of protein 20 common amino acids
  • Peptide Bond – covalent bond between amino acids
  • Ex. Enzyme – changes the rate of chemical reaction
enzymes
Enzymes
  • A.K.A.-Catalysts
  • Speed up reactions
  • Lock & Key
  • Temperature and pH impact shape of enzyme
  • Usually end in “ASE”
  • VIDEO
nucleic acids
Nucleic Acids
  • Polymers are made of subunits called nucleotides
  • Nucleotides: consist of carbon, hydrogen, oxygen, nitrogen and phosphorus
  • Example: DNA, RNA
  • Genetic material