Match the different levels of protein organization with their definition.

Levels of organization:

1. Primary structure

2. Secondary structure

3. Tertiary structure

4. Quaternary structure

Definitions:

A. Linear sequence of amino acids in the polypeptide chain

B. Three-dimensional structure of a polypeptide

C. Highly regular local sub-structures such as α-helix and β-pleated sheet structures

D. Three-dimensional structure of a multi-subunit protein

Select one:

a. 1-C, 2-D, 3-B, 4-A

b. 1-A, 2-C, 3-B, 4-D

c. 1-D, 2-A, 3-B, 4-C

d. 1-A, 2-B, 3-D, 4-C

e. 1-C, 2-D, 3-A, 4-B

Question

Nathaniel Shah

Biology

13 December, 21:58

Match the different levels of protein organization with their definition.

Levels of organization:

1. Primary structure

2. Secondary structure

3. Tertiary structure

4. Quaternary structure

Definitions:

A. Linear sequence of amino acids in the polypeptide chain

B. Three-dimensional structure of a polypeptide

C. Highly regular local sub-structures such as α-helix and β-pleated sheet structures

D. Three-dimensional structure of a multi-subunit protein

Select one:

a. 1-C, 2-D, 3-B, 4-A

b. 1-A, 2-C, 3-B, 4-D

c. 1-D, 2-A, 3-B, 4-C

d. 1-A, 2-B, 3-D, 4-C

e. 1-C, 2-D, 3-A, 4-B

+5

Answers (2)

Know the Answer?

Faith Ferguson · Answer 1

The protein undergoes multiple modifications in order to perform it's function and the structural significance of each type is given below.

Answer: Option B

Explanation:

The protein definitions are as follows:

Primary structure - Linear sequence of amino acids in the polypeptide chain.

Secondary structure - Highly regular local sub-structures such as α-helix and β-pleated sheet structures.

Tertiary structure - It is the Three-dimensional structure of a polypeptide.

Quatenery structure - Three-dimensional structure of a multi-subunit protein.

Rubber · Answer 2

Answer: b.

Primary - sequence of amino acids with peptide bonds

Secondary - a-helix and b-pleated sheets with hydrogen bonds

Tertiary - 3D structure held together by R-group (most proteins only go to this level)

Quaternary - multiple sequences of amino acid chains