f the following is the binding of Oi to hemog)lobin Al N terminal of polypeptide
ID: 561842 • Letter: F
Question
f the following is the binding of Oi to hemog)lobin Al N terminal of polypeptide chain 8) Fe in the prosthetic group C) C terminal of each polypeptide chain D) polypeptide chain E) polypeptide chain 2. Rotation around which type of the following bond is in peptides greathy Uimitee? A) A B) B C) c D) D E) E 3. 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. It is a protein that can be hydrolyzed by amylase E. None of the above 4. Which of the following structure of protein is stabilized majorly by hydrogen bonding A) Quaternary B) Tertiary C) Secondary D) Primary E) None of the above of this test materialprohibited without permision 1 Cory right is reserved by the instructor, photocopy and distributionExplanation / Answer
1) Which of the following is the binding of O2 to hemoglobin
Answer: B) Fe2+ in the prosthetic group
Option A: N-terminal of the polypeptide chain is not a correct option.
Option B: This option is correct. Becuase, The fe2+ open coordination bond is occupied one with oxygen molecule
and another with the amino acid atom.
Therefore, this option is correct.
Option C: Since oxygen is not attached to polypeptide this option is not correct.
Option D: Obviously, this option is not correct.
Option E: this as well not correct.
Hence, the correct option is: B (Fe2+ in the prosthetic group)
2) Peptide bonds have a secondary resonance stabilization. That means, C=O and N-H bond will be in a single plane and
there is no rotation around this bond is possible.
Hence, the option D: D; C=O and N-H is correct.
3)
Option A: Amyloid is the aggregate of proteins, not a polysaccharide. Therefore, this option is not correct.
Option B: Amylose is a polysaccharide. Therefore, there are no similarities between amyloid and amylose.
Hence, this option is not correct.
C) It is an aggregate of misfolded proteins, this option is correct.
D) Amylase will hydrolyze the polysaccharides, therefore, this option is not correct.
E) since correct answer is B . this option is not correct.
Hence, the correct answer is: C.
4) Which of the following structure of protein is stabilized majorly by hydrogen bonding
Answer: The correct answer is: C ( secondary structure)
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