module 2

Question 1

What is primary structure?

Answer 1

the primary structure of a protein is defined as the sequence of amino ac

Question 2

What is secondary structure?

Answer 2

The secondary structure contains regions of amino acid chains that are stabilised by hydrogen bonds from the polypeptide backbone. These hydrogen bonds create alpha-helix and beta-pleated sheets of the secondary structure.

Question 3

What is tertiary structure?

Answer 3

The tertiary structure of a protein refers to the overall three-dimensional arrangement of its polypeptide chain in space. It is generally stabilized by outside polar hydrophilic hydrogen and ionic bond interactions, and internal hydrophobic interactions between non-polar amino acid side chains

Question 4

What is quaternary structure?

Answer 4

The quaternary structure of a protein is the association of several protein chains or subunits into a closely packed arrangement. Each of the subunits has its own primary, secondary, and tertiary structure. The subunits are held together by hydrogen bonds and van der Waals forces between nonpolar side chains.

Question 5

What are the bonds formed in each?

Answer 5

In primary structure amino acids are connect to each other through peptide bonds formed through dehydration synthesis. In secondary structure amino acids are bound by hydrogen bonds formed between atoms holding it in shape. Tertiary structure have disulfide bonds, hydrogen bonds, ionic bonds, and hydrophobic interactions. Lastly quaternary structures The subunits are held together by hydrogen bonds and van der Waals forces between nonpolar side chains.

Question 6

What is van der Waals forces?

Answer 6

Forces that arise due to tiny, temporary imbalances in how electrons move around the atoms

Question 7

structure of collagen

Answer 7

Collagen, a structural protein, is like a trio of friends walking together, represented by three parallel polypeptide strands in a left-handed twist. These strands coil about each other with a slight stagger, creating a right-handed triple helix. Picture this as a dance where each friend takes a left turn and holds hands while circling, but one friend is always a step off. This unique structure provides strength and support in our bodies, as collagen’s triple helix formation is fundamental to its role in maintaining the integrity of various tissues.