1.4 Proteins Flashcards Preview

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Flashcards in 1.4 Proteins Deck (25):
1

What is an amino acid?

The monomer from which proteins are made

2

What is an amine group?

The NH2 groups of amino acid

3

What is the carboxylic group?

The COOH group of amino acid

4

What is a peptide bond?

The bond formed by condensation of amino acid

5

What is a dipeptide?

A chain of two amino acid

6

What is the polypeptide?

A chain of amino acid

7

What is the primary structure?

A sequence of amino acid is in the chain

8

What is the secondary structure?

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

9

What is the tertiary structure?

The folding and twisting to form a 3-D shape

10

What is the disulphide bridge?

A covalent bond between two sulphur molecules

11

What is an ionic bond

An attraction due to a strong difference in electronegativity

12

What is a hydrogen bond?

A bond between hydrogen and FON

13

What is the hydrophobic interaction?

Change colour go round the hydrophobic groups preventing water interaction

14

What is the quaternary structure?

The joining of multiple polypeptides to create a complex protein

15

What is a non-essential amino acid?

And amino acid which is made by the body

16

What is on essential amino acid?

And amino acid which needs to be taken in the diet

17

What is the fibrous protein?

A long thin insoluble twisting train

18

What is a globular proteins?

Are soluble and compact bundle

19

What is an enzyme?

It's protein which catalyses of the reactions

20

What is a competitive inhibitor

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

21

What is a non-competitive inhibitor?

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

22

What is a complex?

When 2 molecules which are complimentary combined

23

What is an active site?

The region of the enzyme a substrate binds

24

What is the lock and key model?

A model of how enzymes work suggesting rigid molecules bind together

25

What is the induced fit model?

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