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Protein Structure lezzons

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

How is a peptide bond formed?

a)

Carboxyl group + Amino group

b)

Carboxyl group + Side chain

c)

Amino group + Side chain

d)

Side chain + Side chain

2.

It is a protein in which only the amino acid residues are present

a)

Monomeric protein

b)

Multimeric protein

c)

Simple protein

d)

Conjugated protein

3.

How many peptide bonds are present within the following tripeptide?

Val–Phe–Cys

a)

1

b)

2

c)

3

d)

4

4.

It is the non-amino acid component of a conjugated protein.

a)

Conjugated protein

b)

Primary structure

c)

Prosthetic group

d)

Polypeptide

5.

It is the order in which the amino acids are linked together in a protein.

a)

Primary structure of protein

b)

Secondary structure of protein

c)

Tertiary structure of protein

d)

Quaternary structure of protein

6.

What type of bond maintains the structure of secondary structure of proteins?

a)

Peptide bond

b)

Hydrogen bond

c)

Disulfide bond

d)

Ionic bond

7.

In the alpha helix protein structure, all R groups are positioned along _______?

a)

Outwards from the spiral

b)

Above the plane of sheet

c)

Inwards from the spiral

d)

Below the plane of sheet

8.

In the beta pleated sheet protein structure, all R groups are positioned along ________?

a)

Inwards from the spiral

b)

Above and below the plane of sheet

c)

Outwards the spiral

d)

Everywhere in the plane of sheet

9.

It is the 3D shape of a protein in a single polypeptide chain.

a)

Primary structure of protein

b)

Secondary structure of protein

c)

Tertiary structure of protein

d)

Quaternary structure of protein

10.

What component of the amino acid is responsible for determining the 3D shape of proteins?

a)

Amino group

b)

Carboxyl group

c)

Hydrogen group

d)

Side chain group

11.

Which group of standard amino acids is responsible for hydrophobic interactions in proteins?

a)

Non polar amino acids

b)

Polar neutral amino acids

c)

Polar acidic amino acids

d)

Polar basic amino acids

12.

Which group of standard amino acids is NOT involved in forming hydrogen bonds within a protein structure?

a)

Non polar amino acids

b)

Polar neutral amino acids

c)

Polar acidic amino acids

d)

Polar basic amino acids

13.

Which of the following will not be a major product of protein hydrolysis based on the given amino acid?

Ala-Gly-Glu-Tyr-Val

a)

Valine

b)

Alanine

c)

Glycine

d)

Phenylalanine

14.

It is the partial or complete disorganization of a protein's structural characteristics.

a)

Protein formation

b)

Protein hydrolysis

c)

Protein denaturation

d)

Protein renaturation

15.

Which of the following is an example of protein denaturation activity?

a)

Cooking egg

b)

Jogging at least 1km

c)

Melting of ice

d)

Digestion of meat in the stomach