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21 Cards in this Set
- Front
- Back
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What is a peptide? |
A polymer of 2 or more amino acids
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What would you call a peptide with 2 or 3 amino acids? |
Dipeptide, tripeptide |
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What would you call a peptide with more than 15 amino acids, or fewer? |
Oligopeptides have fewer than 15, Polypeptides have more than 15 |
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Do proteins have lots of peptides? |
Yes |
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What creates a peptide bond that joins amino acids |
Dehydration systhesis |
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The Primary structure of protein is determined by... |
The amino acid sequence
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What is the Secondary structure of a protein structure? |
ɑ helix (coiled), β-pleated sheet (folded) shapes help together by hydrogen bonds
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What is the Tertiary structure of a protein structure? |
Proteins final 3-dimensional shape (involves ionic, covalent and hydrogen bonding), The final structure of a protein is vital to its function
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What is the Quaternary structure of a protein structure? |
Two or more separate polypeptide chains interaction
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What are the Conjugated Proteins of a protein structure? |
A protein made of mostly Amino acids, but also contains other substances
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What is proteins function for structure? |
Collagen, keratin
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What is proteins function for communication? |
Some hormones, cell receptors
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What is proteins function for Membrane Transportation? |
Form channels, carriers for solute across membranes
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What is proteins function for Catalysis? |
Enzymes are proteins |
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What is proteins function for Recognition and protection? |
Glycoprotein antigens, antibodies and clotting proteins
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What is proteins function for movement? |
Muscle contraction |
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What is proteins function for Cell adhesion? |
Proteins bind cells together |
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What is Protein Conformation? |
overall 3-D shape, is crucial to function, Important property of proteins is the ability to change their conformation
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What is protein denationalization? |
Drastic conformational change that destroys the function of protein, As occurs with extreme heat of pH, Often permanent
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The primary structure of a protein is a straight chain of... |
Amino Acids |
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Name all 7 functions of Protein |
Structure, Communication, Membrane Transport, Catalysis, Recognition and protection, Movement, Cell adhesion
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