Enzymes Common feature in all serine proteases is a cluster of reactive serine residues single reactive serine residue hydrophobic specificity pocket hydrophilic specificity pocket cluster of reactive serine residues single reactive serine residue hydrophobic specificity pocket hydrophilic specificity pocket ANSWER DOWNLOAD EXAMIANS APP
Enzymes Which of the following statements about enzymes or their function is true? Enzymes do not alter the overall change in free energy for a reaction Enzymes speed up reactions by lowering activation energy Enzymes are proteins whose three-dimensional form is key to their function All of these Enzymes do not alter the overall change in free energy for a reaction Enzymes speed up reactions by lowering activation energy Enzymes are proteins whose three-dimensional form is key to their function All of these ANSWER DOWNLOAD EXAMIANS APP
Enzymes Tryprotophan synthetase of E.coli, a typical bifunctional oligomeric enzyme consist of two proteins designated A and B a protein designated B a protein designated A a protein A and one-subunit a two proteins designated A and B a protein designated B a protein designated A a protein A and one-subunit a ANSWER DOWNLOAD EXAMIANS APP
Enzymes Which of the common features are shared between serine and aspartate proteases? Both show specificity for certain amino acid sequences Both use a base to activate the nucleophile All of these Both require water to complete the catalytic cycle Both show specificity for certain amino acid sequences Both use a base to activate the nucleophile All of these Both require water to complete the catalytic cycle ANSWER DOWNLOAD EXAMIANS APP
Enzymes The cleavage specificity of trypsin and chymotrypsin depend in part on the 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 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 proximity of Ser 195 to the active site or specificity pocket ANSWER DOWNLOAD EXAMIANS APP
Enzymes How is the enzyme COX-1 important in human health? It catalyzes the production of hormones that maintain the stomach lining It is critical for the biosynthesis of DNA It helps to transport carbon dioxide in the blood It is a chemical derivative of aspirin It catalyzes the production of hormones that maintain the stomach lining It is critical for the biosynthesis of DNA It helps to transport carbon dioxide in the blood It is a chemical derivative of aspirin ANSWER DOWNLOAD EXAMIANS APP
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