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Page 1: Sept 7 (biomolecules lipids proteins)

Biology I: Introduction to

Bio-molecules

Mr. Nettles

Page 2: Sept 7 (biomolecules lipids proteins)

Agenda-Wed., Sept. 7, 2011

1.Warm-Up – 5 min

2.Lesson – 30 min

3.Wrap-Up – 5 min

4.Cell Projects (due Fri.) – 20 min

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Today’s Objectives

• I will identify and distinguish between the four major groups of bio (organic) molecules.

• I will articulate five key things about lipids and proteins.

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Warm-Up

1. What is the monomer of a nucleic acid?

2.What two organelles are related to carbohydrates ?

3.This an example of a___________.A. Sugar B. Protein C. Nucleic Acid

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For each (bio) organic molecule, you NEED to know 5 things!

1. AKA (other names): other names it can be called

2. Monomer (building block): name of the monomer

3. Purpose (what it does): job in our bodies

4. Examples: things that are that organic molecule

5. Related organelles: what organelle it has to do with

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Lipids

• AKA: Fats, oils, waxes

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Lipids

• AKA: Fats, oils, waxes• Monomer: fatty acid

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Lipids

• AKA: fats, oils, waxes• Monomer: fatty acid• Purpose: form boundaries

(makes up the cell membrane!)

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Lipids

• AKA: Fats, Oils, Waxes• Monomer: Fatty Acid• Purpose: form boundaries (makes up

the cell membrane!)• Examples: lard, vegetable oil

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Lipids

• Related organelle:

-Cell/Plasma membrane: made of lipids!

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LipidsThink!

• What are the monomers of lipids called?

• Give one example of a lipid.

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Proteins

• AKA: enzymes, polypeptides– Enzymes make up a significant part of

the cell membrane in living organisms.

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Proteins

• AKA: enzyme, polypeptide• Monomer: Amino Acid

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Purpose: What do proteins do?• Some control the rate of reactions

and regulate cell processes.

• Some are used to form bones and muscles.

• Others transport substances into or out of cells to help fight diseases.

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Proteins

• AKA: enzyme, polypeptide• Monomer: Amino Acid• Purpose: Do the work of the

cell !!

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Proteins

• AKA: enzyme, polypeptide• Monomer: Amino Acid• Purpose: Do the work of the cell !!• Examples: enzymes, lactase,

hemoglobin, insulin (suffix ‘ase’)

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Proteins

• Related Organelle:

-Ribosome: makes proteins!

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ProteinsThink!

• What are the monomers of proteins called?

• Give one example of a protein.

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Carbohydrates, Nucleic Acids, Lipids, or Proteins?

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Amino Acids

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Form Boundaries

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Monosaccharides

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Does the work of the cell - carries out different cell functions like fighting disease and transporting substances in and out of the cell

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Starch

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Carry genetic information

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Lactose

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Nucleotides

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DNA and RNA

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Fats and Oils

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Energy Production and Storage

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Polypeptides

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Lactase

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Cell Membrane

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Wrap-Up

1. What is the monomer of a lipid?

2.Give two examples of proteins?

3.Phosphatase is a __________.A. Lipid B. Protein C. Sugar