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PROTEINS

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PROTEINS HAVE MANY FUNCTIONS THEY MAKE UP THE STRUCTURAL AND FUNCTIONAL COMPONENTS OF CELLS/ OF THE BODY.-Every organism has 1000 s of unique proteins – PowerPoint PPT presentation

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Title: PROTEINS


1
PROTEINS

HAVE MANY FUNCTIONS
  • THEY MAKE UP THE STRUCTURAL AND FUNCTIONAL
    COMPONENTS OF CELLS/ OF THE BODY.
  • -Every organism has 1000s of unique proteins
  • -Proteins are coded from DNA

2
LIKE MUSCLES
3
HAIR
4
AND NAILS
5
2. THEY ACT AS ENZYMES TO SPEED UP CHEMICAL
REACTIONS.
6
3. SOME ARE HORMONES.
7
4. SOME ARE IMPORTANT IN IMMUNITY.
8
5. SOME ARE IMPORTANT IN TRANSPORT. THEY MAKE
UP BLOOD HEMOGLOBIN.
9
PROTEIN STRUCTURE
  • ALL PROTEINS CONTAIN C, H, O N.
  • AMINO ACIDS ARE THE BUILDING BLOCKS.
  • THERE ARE 20 DIFFERENT AMINO ACIDS FOUND IN
    HUMANS.
  • All aas have a central C that has a H, COOH
    (carboxyl group), an amine group (NH2), and an
    R group (a hydrocarbon chain of 2- ? Carbons).

10
BASIC STRUCTURE OF AN AMINO ACID
H
C
COOH
NH2
R
11
AMINO ACIDS
  • THERE ARE 20 DIFFERENT AMINO ACIDS
  • ____ ARE NONESSENTIAL, THE BODY CAN MAKE THEM
  • ____ ARE ESSENTIAL, THEY MUST BE IN OUR DIET

12
  • Two amino acids dipeptide
  • Three or more amino acids polypeptide
  • Remember ase enzyme

13
ENZYMES
  • ARE GLOBULAR SHAPED PROTEINS THAT ACT AS
    BIOLOGICAL CATALYSTS.
  • CATALYSTS SPEED UP REACTIONS.

14
CHARACTERISTICS OF ENZYMES
  • ARE DESTROYED BY
  • HEAT
  • STRONG ACIDS
  • STRONG BASES
  • THEY COME OUT OF A REACTION EXACTLY AS THEY WENT
    IN
  • THEY ARE SPECIFIC, THEY CATALYZE A SINGLE REACTION
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