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BCH Exam 1 questions with 100% correct answers
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BCH Exam 1 questions with 100% correct answers
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BCH Exam 1Best describes glycogen - correct answer ✔✔Branched carbohydrates
Phosphate groups, sugar molecule, nitrogen containing base - correct answer ✔✔Nucleotide
Primarily responsible for compartmentalizing the cell - correct answer ✔✔Lipids
An electrostatic interaction at the buried interface of two proteins (salt-bridge) would be expected to be
___________. - correct answer ✔✔Energetically important
What is most important to the hydrophobic effect? - correct answer ✔✔Entropy
Mutation of Thr to what is most conservative?
Ala
Arg
Gln
Ser
Tyr - correct answer ✔✔Ser
Most common conformation of peptide bond - correct answer ✔✔Trans
Why does Gly differ from the other amino acids in terms of the phi and psi angles in preferentially
adopts? - correct answer ✔✔Lack of a bulky side chain
Collagen forms a unique structure that requires - correct answer ✔✔Many Gly residues
Hydroproline residues
Stabilizing inter-strand H bonds
, Superhelical cable
Vitamin C is critical for the formation of stable collagen fibers because it ________ - correct answer
✔✔Functions as an antioxidant
What residues are normal in loops and turns? - correct answer ✔✔Pro and Gly
What is not normally required for correct protein folding? - correct answer ✔✔Quaternary structure
Anfinsen experiment demonstrates what? - correct answer ✔✔The primary sequence of ribonuclease
determines its tertiary structure
A common feature of amyloidosis in the nervous system that is normally soluble ___________ - correct
answer ✔✔Form insoluble fibrils rich in B-sheets
Is increased stability a benefit of protein oligomerization? - correct answer ✔✔Yes
In the absence of Fe, how would the O2 binding of be different? - correct answer ✔✔It wouldn't bind
Are unique active sites a benefit of protein oligomerization? - correct answer ✔✔Yes
Is compact tertiary structure a benefit of protein oligomerization? - correct answer ✔✔No
Is cooperativity a benefit of protein oligomerization? - correct answer ✔✔Yes
Is modulatory a benefit of protein oligomerization? - correct answer ✔✔Yes
The difference between O2 binding to adult and fetal hemoglobin is due to differences in what? - correct
answer ✔✔Allosteric regulator binding
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