Hand in W.S. Carbon Compounds and W.S. 2.4 (DR/DL/Quiz) before the bell rings

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Class Topics
Title Biology 9/26/06
Objectives

• To continue learning about the biochemistry and
  macromolecules.

• Hand in W.S. Carbon Compounds and W.S. 2.4
  (DR/DL/Quiz) before the bell rings
• Review Chapter 2 Quiz 2
• Review Notes
• Chemical Reactions
• Enzyme Demonstration
• Preview for test
• It does not matter how slowly you go, so long as
  you do not stop.
• Confucius

Saturday, March 12, 2016 1217 AM
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Class Assignments
By When
What

• W.S. Carbon Compounds 9/26/06
• W.S. 2.4 (DR/Quiz/DL) 9/26/06
• W.S. Chapter 2 Science Skills 9/28/06
• Chapter 2 Test 10/2/06
• Due this class period
• Due next class period
• Due in the future

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Grade Sheet
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2A Grade Sheet
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4A Grade Sheet
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How does an enzyme work?

• Decrease activation energy (graph)
• Normally energy in form of heat or pH
• Provides area for chemical reaction to take place
• Substrate fits into active site
• Precise fit, catalyst for only 1 reaction
• Lock and key theory
• Much less energy needed to join or break
  reactants
• Products produced more quickly

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Lock and Key Theory
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From http//www.accessexcellence.org/RC/VL/GG/enz
yme.html
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(No Transcript)
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Enzymes

• Amylase Changes starch to glucose
• Found in saliva
• Works best at pH of 7-8
• Pepsin Changes protein to amino acids
• Found in stomach
• Works best a pH of 1.5-2.5

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Enzyme demonstration

• Catalyst - inorganic - MnO2
• RXN - H2O2 H2O O2
• Enzyme - catalase - found in every cell
• Liver - how does it compare?
• Blood - how does it compare?

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Chapter 2 Test Review

• Water and Polar Molecules
• Partial positive charge on one side and a partial
  negative charge on the other side
• Different parts have different charges
• Nonpolar molecules
• No positive nor negative poles
• Ex. lipids
• Water oil
• Dont mix

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Chapter 2 Test Review

• Organic compounds
• Carbon and hydrogen
• Carbohydrates, proteins, lipids, nucleic acids

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Chapter 2 Test Review

• Carbohydrates
• Monomer monosaccharides
• Ex. Polysaccharides, sucrose
• Identify a picture of glucose
• Animal starch glycogen
• Storage of glucose
• Lactose Water glucose galactose
• Label Dehydration synthesis (sucrose)

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Chapter 2 Test Review

• Lipids
• Ex. Saturated fats, unsaturated fats, earwax
• Monomer
• Glycerol/fatty acids
• Picture
• Fatty acid chain
• Liquid fats
• Unsaturated fatty acids

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Chapter 2 Test Review

• Essay
• What macromolecules have an effect on homeostasis
  in humans?
• Data
• Carbohydrates
• Energy source - Glucose
• Bowel movements - Cellulose
• Energy storage - Glycogen (liver and muscles)
• Lipids
• Protection earwax
• Energy storage fats
• Insulation - fats

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Chapter 2 Test Review

• Essay
• What macromolecules have an effect on homeostasis
  in humans?
• Proteins
• Digestion of foods enzymes amylase, pepsin
• Storage of glucose hormone insulin
• Release of glucose hormone - glucagon
• Forming blood cells hormone erythropoeitin
• Gaining strength structure muscles, ligaments
• Creating heat structure - muscles
• Nucleic Acids
• Direct protein production DNA, RNA