Proteins

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What is an amino acid?
basic monomer units which can combine to make a polymer called a peptide.
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Give the names of the groups on an amino acid.
Amine group, carboxyl group, hydrogen group and R group.
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Name the contents of the Amine Group.
1 Nitrogen and 2 Hydrogen.
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Name the contents of the carboxyl group.
1 carbon 2 oxygen (1 double bond and one single bond).
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What is the element in the centre of all amino acids?
Carbon.
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What is the process called when 2 amino acid monomers join together?
Polymerisation.
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When two amino acids join, what groups join together and what happens?
The Carboxyl group and amine group join together in a condensation reaction leaving water.
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Describe the primary structure of proteins.
A long chain of the 20 different amino acids called a polypeptide chain.
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What would happen if you changed one of the amino acids in a primary structure and why?
The protein would not form in to the same shape and therefore will not be able to carry out its function.
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What charge does the -NH group have?
1+
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What charge does the 0-C=O group have?
1-
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What kind of weak bonds from on the amine and carboxyl group?
Hydrogen bonds (weak bonds)
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Describe a secondary structure.
As a result of the hydrogen bonds from the charges on each side of the amino acid, thhe chain starts to twist into a 3d shape.
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Describe a tertiary structure.
The secondary structure shape is twisted and folded even more to give a complex and unique 3D shape of each protein.
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Name the three bonds, in order of strongest to weakest, which help maintain the shape of a tertiary structure.
Disulfide bond, ionic bonds and hydrogen bonds.
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Other cards in this set

Card 2

Front

Give the names of the groups on an amino acid.

Back

Amine group, carboxyl group, hydrogen group and R group.

Card 3

Front

Name the contents of the Amine Group.

Back

Preview of the front of card 3

Card 4

Front

Name the contents of the carboxyl group.

Back

Preview of the front of card 4

Card 5

Front

What is the element in the centre of all amino acids?

Back

Preview of the front of card 5
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