Advertisements
Advertisements
Question
Give the differences between the primary and secondary structure of proteins.
Solution
| Sr. No. | Primary structure of proteins | Secondary structure of proteins |
| 1. | Linear Sequence of amino acids. | Folding of the peptide chain into an α-helix or β-sheet. |
| 2. | Composed of peptide bonds formed between amino acids. | Encompasses hydrogen bonds. |
| 3. | Formed during translation. | Forms collagen, elastin actin, myosin, and keratin like fibres. |
| 4. | Involved in post-translational modifications. | Involved in forming structures such as cartilages, ligaments, skins, etc. |
APPEARS IN
RELATED QUESTIONS
Give scientific reasons:
α-Amino acids have high melting points compared to the corresponding amines or carboxylic acids of comparable molecular mass.
Complete the following reaction.
\[\ce{H2N - CH2 - COOH + H2N - CH2 - CH2 - COOH ->[-H2O] ?}\]
Explain globular and fibrous proteins with example.
Purine and pyrimidine bases are placed regularly along the DNA molecules at a distance of ______
Read the following statements and select the correct option.
- In quaternary structure, the peptide chains are much looped, twisted, and folded back on themselves due to formation of hydrogen bonds.
- When a protein has more than two polypeptide subunits their arrangement in space is called secondary structure.
Proteins attached with a prosthetic group are called ______ proteins.
Which of the following molecules from a zwitter ion?
The central dogma of molecular genetics states that the genetic information flows from:
Write a short note on a peptide bond.
Write the Zwitter ion structure of alanine.
