Tertiary Structure of Proteins

Q. Which of the following has highest number of formula units per unit cell? (1) NaCl type structure (2) NaO type structure (3) CaF2 type structure (4) All have same number of formula unit

Q. The number of disulphide linkages present in insulin is
(JEE Main, 2013)

1. 2
2. 1
3. 4
4. 3

Q.

Which of the following are responsible for tertiary structure of proteins

1) Hydrogen bonding 2) Disulphide linkage

3) Hydrophobic interactions 4) Ionic bond

The correct answer is

1. only 1

2. only 1 and 3

3. 1, 2, 3 and 4

4. only 2 and 4

Q. Out of C3H4 and C4H4 which is not planar? And how to find that the molecule is planar or not

Q. Identify the hormone that increases the glucose level in blood.

1. Insulin
2. Glucagon
3. Oxytocin
4. Estrogens

Q.

Which of the following are responsible for tertiary structure of proteins

1) Hydrogen bonding 2) Disulphide linkage

3) Hydrophobic interactions 4) Ionic bond

The correct answer is

1. only 1

2. only 1 and 3

3. only 2 and 4

4. 1, 2, 3 and 4

Q. Proteins are:

1. polysaccharides
2. polynucieotides
3. polypeptides
4. triglycerides

Q. Which of the following analogies is correct?
Primary structure: polypeptide bond ::
Secondary structure:

1. Ionic bonds
2. Hydrogen bonds
3. Ether bonds
4. Peptide bonds

Q.

Which of the following are responsible for tertiary structure of proteins

1) Hydrogen bonding 2) Disulphide linkage

3) Hydrophobic interactions 4) Ionic bond

The correct answer is

1. only 1

2. only 1 and 3

3. only 2 and 4

4. 1, 2, 3 and 4

Q. The number of disulphide linkages present in insulin is
(JEE Main, 2013)

1. 4
2. 3
3. 2
4. 1