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Proteins - PowerPoint PPT Presentation


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Proteins. Made of smaller amino acids 20 amino acids… but thousands of proteins Arrangement of amino acids determines protein Used in variety of cellular functions. Protein Basics. Amino Acid (protein) Structure. 5 basic parts 1) Central C atom 2) Amino group (NH2) 3) H

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PowerPoint Slideshow about ' Proteins' - fitzgerald-oconnor


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protein basics
Made of smaller amino acids

20 amino acids… but thousands of proteins

Arrangement of amino acids determines protein

Used in variety of cellular functions

Protein Basics
amino acid protein structure
Amino Acid (protein) Structure
  • 5 basic parts

1) Central C atom

2) Amino group (NH2)

3) H

4) Carboxyl group (COOH)

5) R group

  • Monomer: Amino acid
  • Polymer: Protein
slide7
hydrogen bond

Hemoglobin

  • Amino acids interact to give a protein its shape.
  • Proteins differ in the number and order of amino acids.
  • Incorrect amino acids change a protein’s structure and function.
enzymes
Enzymes
  • Types of proteins
  • Enzyme: Lowers the energy needed to start a chemical reaction
    • Breaking down food
    • Building proteins
  • Sensitive to pH, temp
    • Fever: enzymes lose ability to work
  • Very specific in actions
    • Ex: Amylase: Breaks down starch, in mouth, into simple sugars
  • Reusable
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