B2 Proteins Flashcards

1
Q

Name the monomer shown in the diagram

A

Amino acid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Name the elements found in an amino acids

A

Carbon

Hydrogen

Oxygen

Nitrogen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Name the bond formed between two amino acids

A

Peptide bond

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Name the type of reaction used to break a peptide bond

A

Hydrolysis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Name the level of protein structure shown in the diagram

A

Primary structure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Define primary structure of proteins

A

Specific sequence of amino acids joined by peptide bonds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Name the type of reaction used to join two amino acids together

A

Condensation reaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

How is this secondary structure held in place?

A

Hydrogen bonds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Name the type of secondary structure shown on the diagram

A

Alpha helix

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Name the type of secondary structure shown on the diagram

A

Beta pleated sheet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Give a definition of secondary structure

A

Specific folding of the primary structure held in place by hydrogen bonds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Give a definition of tertiary structure

A

Specific folding of the secondary structure held in place by hydrogen, ionic and disulfide bonds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Name a protein that has a tertiary structure

A

Enzyme

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Name a protein that has a quaternary structure

A

Haemoglobin

Antibody

Chlorophyll

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Give a definition of a quaternary structure

A

Protein made of two or more polypeptides

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is a disulfide bridge?

A

A bond between 2 sulfur atoms

17
Q

Which amino acid contains sulfur?

A

Cysteine

18
Q

Name the three parts of an amino acid

A

NH3 - amine group

COOH - carboxyl group

R group - variable side chain

19
Q

Describe how a dipeptide is formed

A

Condensation reaction

Form a peptide bond between 2 amino acids

Hydrogen removed from NH3 group

Hydroxyl group removed from the carboxyl group

20
Q

What is a polypeptide?

A

Many amino acids joined together by peptide bonds

21
Q

Describe a biochemical test for a protein

A

Biuret test

Add Biruet solution

Positive result - lilac

Negative result - blue

22
Q

Nmae the organelle responsible for joining amino acids together

A

Ribosome