General Biology - Biochemistry
ProteinsProteins
Proteins
• Building Blocks of living things
• Contain C, H, O
• and Nitrogen (N)
• Built from monomers called
• AMINO ACIDS
All amino acids have: • 1. A Carboxyl group
• 2. An amino group
• 3. “R” group This is a carbon chain that distinguishes one amino acid from another
How to build a protein…
What would we call two amino acids together?
What would we call many amino acids together?
Two types of Proteins
STRUCTURAL PROTEINS
Muscles
Collagen
Keratin
Membranes
FUNCTIONAL PROTEINS
Enzymes
Hormones
Antibodies
Hemoglobin
Food Sources of Protein
Structural Protein:
Collagen
keratin
fiberon
Functional proteins:
enzymes
how many different in proteins in the world?
• How many letters in the alphabet?
• How many words can you build?
• How many amino acids?
• How many proteins?
• Smallest proteins = about 500 amino acids
Soooooo……
• What are the building blocks of living things?
• What are the building blocks of proteins?
• What are the two types of proteins?
On to Nucleic Acids
Nucleic Acids
• Huge macromolecules• Information transfer • Contain C, H, O, N, Phosphorous• Made of monomers called
nucleotides • Examples include • DNA (deoxyribonucleic acid)• RNA (ribonucleic acid)
We will cover in depth in Genetics Unit not now
Phosphate
group
5 carbon
Deoxyribose sugar
Bases
Organic molecules
• Carbohydrates – energy –structure – glucose-mon,di, poly
• Lipids – energy –structure-fatty acids/glycerol – triglyc, phosp
• Proteins-structure – function – amino acids- polypeptides
• Nucleic Acids – information-nucleic acids- DNA, RNA
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