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Biology 7401/2 > 1.4 Proteins > Flashcards

1.4 Proteins Flashcards

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1
Q

What is an amino acid?

A

The monomer from which proteins are made

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2
Q

What is an amine group?

A

The NH2 groups of amino acid

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3
Q

What is the carboxylic group?

A

The COOH group of amino acid

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4
Q

What is a peptide bond?

A

The bond formed by condensation of amino acid

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5
Q

What is a dipeptide?

A

A chain of two amino acid

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6
Q

What is the polypeptide?

A

A chain of amino acid

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7
Q

What is the primary structure?

A

A sequence of amino acid is in the chain

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8
Q

What is the secondary structure?

A

Chain of amino acid’s folded into an alpha helix or a beta pleated sheet

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9
Q

What is the tertiary structure?

A

The folding and twisting to form a 3-D shape

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10
Q

What is the disulphide bridge?

A

A covalent bond between two sulphur molecules

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11
Q

What is an ionic bond

A

An attraction due to a strong difference in electronegativity

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12
Q

What is a hydrogen bond?

A

A bond between hydrogen and FON

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13
Q

What is the hydrophobic interaction?

A

Change colour go round the hydrophobic groups preventing water interaction

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14
Q

What is the quaternary structure?

A

The joining of multiple polypeptides to create a complex protein

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15
Q

What is a non-essential amino acid?

A

And amino acid which is made by the body

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16
Q

What is on essential amino acid?

A

And amino acid which needs to be taken in the diet

17
Q

What is the fibrous protein?

A

A long thin insoluble twisting train

18
Q

What is a globular proteins?

A

Are soluble and compact bundle

19
Q

What is an enzyme?

A

It’s protein which catalyses of the reactions

20
Q

What is a competitive inhibitor

A

It prevents the substrate binding by binding to the active site of the enzyme

21
Q

What is a non-competitive inhibitor?

A

It prevents the substrate binding by changing the active site by binding elsewhere

22
Q

What is a complex?

A

When 2 molecules which are complimentary combined

23
Q

What is an active site?

A

The region of the enzyme a substrate binds

24
Q

What is the lock and key model?

A

A model of how enzymes work suggesting rigid molecules bind together

25
Q

What is the induced fit model?

A

The model of how enzymes work suggesting that molecules change of flex like a hand in a glove

Biology 7401/2 (24 decks)

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