Exam 7: Enzyme Mechanisms

A patient presents with symptoms associated with the disease beriberi.An analysis of pyruvate dehydrogenase complex activity shows significantly reduced levels from normal.Predict how a deficiency in a coenzyme may be the culprit.Specify the coenzyme involved.

(Essay)

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Question 101

What three amino acids are targeted for phosphorylation by kinases?

(Short Answer)

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Question 102

The mechanism of HMG-CoA reductase involves

(Multiple Choice)

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Question 103

The Lineweaver-Burk plot shows data obtained for an enzyme in the absence and presence of a noncompetitive inhibitor.If the [I] is increased significantly in the experiment,the V_maxapp would __________ and the K_mapp would __________.

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Question 104

In vivo arginine decarboxylase activity is monitored over several days in the absence and presence of protease inhibitors.The activity is greatly reduced when protease inhibitors are present.Arginine decarboxylase is not a protease.Interpret these findings.

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Question 105

Showing 101 - 105 of 105

A patient presents with symptoms associated with the disease beriberi.An analysis of pyruvate dehydrogenase complex activity shows significantly reduced levels from normal.Predict how a deficiency in a coenzyme may be the culprit.Specify the coenzyme involved.

What three amino acids are targeted for phosphorylation by kinases?

The mechanism of HMG-CoA reductase involves

The Lineweaver-Burk plot shows data obtained for an enzyme in the absence and presence of a noncompetitive inhibitor.If the [I] is increased significantly in the experiment,the V_maxapp would __________ and the K_mapp would __________.

In vivo arginine decarboxylase activity is monitored over several days in the absence and presence of protease inhibitors.The activity is greatly reduced when protease inhibitors are present.Arginine decarboxylase is not a protease.Interpret these findings.

Principles of Biochemistry

Physical Biochemistry: Energy Conversion,water,and Membranes

Nucleic Acid Structure and Function

Protein Structure

Methods in Protein Biochemistry

Protein Function

Cell Signaling Systems

Glycolysis: a Paradigm of Metabolic Regulation

The Citrate Cycle

Oxidative Phosphorylation

Photosynthesis

Carbohydrate Structure and Function

Carbohydrate Metabolism

Lipid Structure and Function

Lipid Metabolism

Amino Acid Metabolism

Nucleotide Metabolism

Metabolic Integration

Dna Replication, repair, and Recombination

Rna Synthesis, processing, and Gene Silencing

Protein Synthesis, posttranslational Modification, and Transport

Gene Regulation

Filters

Exam 7: Enzyme Mechanisms

A patient presents with symptoms associated with the disease beriberi.An analysis of pyruvate dehydrogenase complex activity shows significantly reduced levels from normal.Predict how a deficiency in a coenzyme may be the culprit.Specify the coenzyme involved.

What three amino acids are targeted for phosphorylation by kinases?

The mechanism of HMG-CoA reductase involves

The Lineweaver-Burk plot shows data obtained for an enzyme in the absence and presence of a noncompetitive inhibitor.If the [I] is increased significantly in the experiment,the Vmaxapp would __________ and the Kmapp would __________.

In vivo arginine decarboxylase activity is monitored over several days in the absence and presence of protease inhibitors.The activity is greatly reduced when protease inhibitors are present.Arginine decarboxylase is not a protease.Interpret these findings.

Principles of Biochemistry

Physical Biochemistry: Energy Conversion,water,and Membranes

Nucleic Acid Structure and Function

Protein Structure

Methods in Protein Biochemistry

Protein Function

Cell Signaling Systems

Glycolysis: a Paradigm of Metabolic Regulation

The Citrate Cycle

Oxidative Phosphorylation

Photosynthesis

Carbohydrate Structure and Function

Carbohydrate Metabolism

Lipid Structure and Function

Lipid Metabolism

Amino Acid Metabolism

Nucleotide Metabolism

Metabolic Integration

Dna Replication, repair, and Recombination

Rna Synthesis, processing, and Gene Silencing

Protein Synthesis, posttranslational Modification, and Transport

Gene Regulation

Filters

The Lineweaver-Burk plot shows data obtained for an enzyme in the absence and presence of a noncompetitive inhibitor.If the [I] is increased significantly in the experiment,the V_maxapp would __________ and the K_mapp would __________.