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Biochemistry - Enzymes

Exercise : Enzymes - Section 1
  • Enzymes - Section 1
11.
The cleavage specificity of trypsin and chymotrypsin depend in part on the
proximity of Ser 195 to the active site or specificity pocket
size, shape, and charge of the active site or specificity pocket
presence of a low-barrier hydrogen bond in the active site or specificity pocket
absence of water in the active site
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
The E.coli pyruvic acid dehydrogenase complex is reported to
decatalyze the oxidation of pyruvic acid to acetyl Co A and CO2
Catalyze the oxidation of pyruvic acid to acetyl Co A and CO2
retard the reduction of pyruvic acid to acetyl Co A and CO2
Catalyze the reduction of pyruvic acid to acetyl Co A and CO2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
Which of the common features are shared between serine and aspartate proteases?
Both require water to complete the catalytic cycle
Both use a base to activate the nucleophile
Both show specificity for certain amino acid sequences
All of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
Before they can react, many molecules need to be destabilized. This state is typically achieved through
changing the three-dimensional shape of the molecule
oxidizing the molecules by removing electrons
changing the reaction from a biosynthetic to a catabolic pathway
the input of a small amount of activation energy
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
Common feature in all serine proteases is a
hydrophobic specificity pocket
hydrophilic specificity pocket
cluster of reactive serine residues
single reactive serine residue
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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