Question 1

Which is the most likely regulated step in metabolic pathways?

Accepted Answer

A) The first reaction in the pathway, regardless of whether it is reversible or irreversible. 
B) The first irreversible reaction of the pathway. 
C) The first endergonic reaction in the pathway. 
D) The last reaction of the pathway. 
E) The reaction whose enzyme is present in the highest activity in the cell. 
A) The first reaction in the pathway, regardless of whether it is reversible or irreversible. 
B) The first irreversible reaction of the pathway. 
C) The first endergonic reaction in the pathway. 
D) The last reaction of the pathway. 
E) The reaction whose enzyme is present in the highest activity in the cell. B

Question 2

Which type of regulation is most likely for the regulated enzymes of energy-generating oxidative pathways?

Accepted Answer

A) Stimulation by adenosine triphosphate (ATP). 
B) Stimulation by adenosine diphosphate (ADP). 
C) Stimulation by the reduced form of nicotinamide adenine dinucleotide (NADH). 
D) Feedback inhibition by carbon dioxide. 
E) Inhibition by the substrate of the pathway. 
A) Stimulation by adenosine triphosphate (ATP). 
B) Stimulation by adenosine diphosphate (ADP). 
C) Stimulation by the reduced form of nicotinamide adenine dinucleotide (NADH). 
D) Feedback inhibition by carbon dioxide. 
E) Inhibition by the substrate of the pathway. B

Which is the most likely regulated step in metabolic pathways?

Which type of regulation is most likely for the regulated enzymes of energy-generating oxidative pathways?

Introduction to Biomolecules

Introduction to Protein Structure

Oxygen Transporters: Hemoglobin and Myoglobin

Enzymatic Reactions

Coenzymes

DNA, RNA, and Protein Synthesis

The Human Genome

Protein Targeting

Introduction to Genetic Diseases

Viruses

DNA Technology

Biological Membranes

The Cytoskeleton

The Extracellular Matrix

Plasma Proteins

Extracellular Messengers

Intracellular Messengers

Cellular Growth Control and Cancer

Digestive Enzymes

Glycolysis, Tricarboxylic Acid Cycle, and Oxidative Phosphorylation

Carbohydrate Metabolism

The Metabolism of Fatty Acids and Triglycerides

The Metabolism of Membrane Lipids

Lipid Transport

Amino Acid Metabolism

Heme Metabolism

The Metabolism of Purines and Pyrimidines

Vitamins and Minerals

Integration of Metabolism

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Exam 20: Introduction to Metabolic Pathways

Which is the most likely regulated step in metabolic pathways?

Which type of regulation is most likely for the regulated enzymes of energy-generating oxidative pathways?

Introduction to Biomolecules

Introduction to Protein Structure

Oxygen Transporters: Hemoglobin and Myoglobin

Enzymatic Reactions

Coenzymes

DNA, RNA, and Protein Synthesis

The Human Genome

Protein Targeting

Introduction to Genetic Diseases

Viruses

DNA Technology

Biological Membranes

The Cytoskeleton

The Extracellular Matrix

Plasma Proteins

Extracellular Messengers

Intracellular Messengers

Cellular Growth Control and Cancer

Digestive Enzymes

Glycolysis, Tricarboxylic Acid Cycle, and Oxidative Phosphorylation

Carbohydrate Metabolism

The Metabolism of Fatty Acids and Triglycerides

The Metabolism of Membrane Lipids

Lipid Transport

Amino Acid Metabolism

Heme Metabolism

The Metabolism of Purines and Pyrimidines

Vitamins and Minerals

Integration of Metabolism

Filters