PROTEINS

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PROTEINS
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Elements
C, H, O, N always sometimes S, P
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Ratio
much more than 21 HO
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Formation of Proteins
Basic Unit Amino Acid
(20 kinds)
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Dipeptide
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Polypeptide 3 or more AA bonded together
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Functions of Proteins
1. Structural
form framework of parts of body and of cell
membranes
Ex. keratin in skin hair
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2. Regulatory
control physiological processes
ex. insulin regulates blood sugar
3. Transport
move vital substances thru the body
ex. hemoglobin transports O2 many in
cell membrane that move materials
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4. Catalytic
enzymes that control biochemical reactions
ex. salivary amylase in saliva, breaks
down starch
5. Immune
antibodies that protect body from microbes
ex. gamma globulin
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NUCLEIC ACIDS
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Location
Found in the nucleus
Get it? Nucleic acids
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Functions
Provide instructions for cell processes
Contain the genetic information
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Building Blocks
Nucleotides
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Examples
DNA
RNA
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