L. Make your best choice for each of the following 1. Which of the following str
ID: 255722 • Letter: L
Question
L. Make your best choice for each of the following 1. Which of the following structure of protein is stabilized majorly by hydrogen bonding A) Primary B) Secondary C) Tertiary D) Quaternary E) None of the above 2. Which of the following is the binding of O2 to hemoglobin A) polypeptide chain a B) polypeptide chain ? C) N terminal of polypeptide chain D) Fe" in the prosthetic group E) C terminal of each polypeptide chain 3. Rota tion around which type of the following bond is in peptides greatly limited? ?? A) A B)B C) C D) D E) 4. Which of the following is correct about 'amyloid' A. It is a polysaccharide aggregate B. It is a protein structurally similar to amylose C. It is a aggregates of misfolded proteins D. E. It is a protein that can be hydrolyzed by amylase None of the aboveExplanation / Answer
1. Answer is option D. Quarternary
Quarternary structure of a protein is stabilized by non covalent forces like hydrogen bonds, salt bridges and disulfide bonds.
2. Answer is option D. Fe in the prosthetic group.
The Fe ion present in the porphyrin ring bonds to oxygen by a covalent bond.
4. Answer is option C. It is a aggregates of misfolded proteins.
Many proteins folded in beta sheet form forming fibril like structure. It results in various diseases like alzimers, Parkinson etc
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