A) perish under conditions with O2. B) use oxidizing agents such as sulfate or nitrate as a primary food source. C) resemble the earliest life forms. D) all of the above E) none of the above A) perish under conditions with O2. B) use oxidizing agents such as sulfate or nitrate as a primary food source. C) resemble the earliest life forms. D) all of the above E) none of the above

Exam 14: Introduction to Metabolism

Compound "K" is the ultimate product of a linear metabolic pathway consisting of ten enzymatically catalyzed reactions as shown below. Complete the following description. If "K" inhibits activity of enzyme "5", then enzyme "5" is under _ control.If enzyme "3" becomes activated in response to activity of protein kinase A only when compound "A" is present, then enzyme "3" is under _ control.If enzyme "2" is only expressed in the presence of high concentrations of "A," then enzyme "2" is under _ control.If all of these are true, high concentrations of "" will decrease the flux through the pathway.

(Multiple Choice)

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Question 21

Use the table below to rank the redox centers in order of increasing ability to produce a favorable electron flow.

(Multiple Choice)

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Question 22

Consider the following metabolic reaction: Succinyl-CoA + Acetoacetate $\rarr$ Acetoacetyl-CoA + Succinate $\Delta$ G°' = -1.25 kJ/mol This reaction is

(Multiple Choice)

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Question 23

The K_eq is 0.503 at 25°C for the following reaction.What is the $\Delta$ G°' for this reaction? D-Glucose-6-phosphate $\rarr$ D-Fructose-6-phosphate $\Delta$ G°'= ?

(Multiple Choice)

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Question 24

Cells control or regulate the flux through metabolic pathways by means of I.allosteric control of enzymes. II.covalent modification of enzymes. III.genetic control of the concentrations of enzymes. IV.genetic expression of allosteric effectors.

(Multiple Choice)

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Question 25

If the diagram below represents a catabolic pathway, and enzyme 1 requires NAD⁺, what type of reaction does enzyme 1 catalyze?

(Multiple Choice)

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Question 26

The conversion of triacylglycerides into fatty acids for the purpose of energy generation is an example of which of the following?

(Multiple Choice)

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Question 27

Which of the numbered arrows in the figure points toward a high-energy phosphoanhydride bond?

(Multiple Choice)

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Question 28

Which of the following is (are)true regarding vitamins? I.They are essential organic molecules an organism is unable to synthesize. II.Some water soluble vitamins mediate electron-transfer reactions. III.In humans, the water soluble vitamins converted into organic coenzymes. IV.In humans, the fat soluble vitamins mediate group transfer reactions.

(Multiple Choice)

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Question 29

In eukaryotes, glycolysis typically occurs in the

(Multiple Choice)

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Question 30

I have discovered a new metabolic enzyme which utilizes NAD⁺ as a coenzyme.Which of the following could be true based on this information?

(Multiple Choice)

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Question 31

Acetyl-CoA contains a ____ bond which often provides the energy required for substrate-level phosphorylation.

(Multiple Choice)

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Question 32

A researcher is interested in determining if a long term change in the carbohydrate content of an individual's diet alters the levels of expression of carbohydrate metabolizing enzymes.Which of the following would address this question?

(Multiple Choice)

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Question 33

______ is the most reliable systems biology approach to assess gene expression.

(Multiple Choice)

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Question 34

Matching -Prokaryotes that are able to synthesize all of their cellular components from simple molecules such as CO₂, H₂O, NH₃, and H₂S are called ______.

(Multiple Choice)

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Question 35

Which of the following increase the phosphate transfer potential of compound? I.electrostatic repulsion between charged groups on the reactant II.resonance stabilization of the hydrolysis products III.greater energy of solvation of the hydrolysis products IV.the presence of a enol group in the reactants

(Multiple Choice)

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Question 36

Obligate aerobes

(Multiple Choice)

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Question 37

Consider the following metabolic reaction: Succinyl-CoA + Acetoacetate $\rarr$ Acetoacetyl-CoA + Succinate $\Delta$ G°' = -1.25 kJ/mol What is the K_eq for this reaction at 25°C?

(Multiple Choice)

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Question 38

Acyl phosphates such as 1,3-bisphosphoglycerate have a phosphoryl group transfer potential compared to ATP, which can be recognized by the _ $\Delta$ G°' values for hydrolysis.

(Multiple Choice)

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Question 39

Which compound is in the highest oxidation state?

(Multiple Choice)

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Question 40

Showing 21 - 40 of 52

Exam 14: Introduction to Metabolism

Use the table below to rank the redox centers in order of increasing ability to produce a favorable electron flow.

Consider the following metabolic reaction: Succinyl-CoA + Acetoacetate →\rarr→ Acetoacetyl-CoA + Succinate Δ\DeltaΔ G°' = -1.25 kJ/mol This reaction is

The Keq is 0.503 at 25°C for the following reaction.What is the Δ\DeltaΔ G°' for this reaction? D-Glucose-6-phosphate →\rarr→ D-Fructose-6-phosphate Δ\DeltaΔ G°'= ?

Cells control or regulate the flux through metabolic pathways by means of I.allosteric control of enzymes. II.covalent modification of enzymes. III.genetic control of the concentrations of enzymes. IV.genetic expression of allosteric effectors.

If the diagram below represents a catabolic pathway, and enzyme 1 requires NAD+, what type of reaction does enzyme 1 catalyze?

The conversion of triacylglycerides into fatty acids for the purpose of energy generation is an example of which of the following?

Which of the numbered arrows in the figure points toward a high-energy phosphoanhydride bond?

In eukaryotes, glycolysis typically occurs in the

I have discovered a new metabolic enzyme which utilizes NAD+ as a coenzyme.Which of the following could be true based on this information?

Acetyl-CoA contains a ____ bond which often provides the energy required for substrate-level phosphorylation.

A researcher is interested in determining if a long term change in the carbohydrate content of an individual's diet alters the levels of expression of carbohydrate metabolizing enzymes.Which of the following would address this question?

______ is the most reliable systems biology approach to assess gene expression.

Matching -Prokaryotes that are able to synthesize all of their cellular components from simple molecules such as CO2, H2O, NH3, and H2S are called ______.

Obligate aerobes

Consider the following metabolic reaction: Succinyl-CoA + Acetoacetate →\rarr→ Acetoacetyl-CoA + Succinate Δ\DeltaΔ G°' = -1.25 kJ/mol What is the Keq for this reaction at 25°C?

Acyl phosphates such as 1,3-bisphosphoglycerate have a ______ phosphoryl group transfer potential compared to ATP, which can be recognized by the _______ Δ\DeltaΔ G°' values for hydrolysis.

Which compound is in the highest oxidation state?

Introduction to the Chemistry of Life

Water

Nucleotides, Nucleic Acids, and Genetic Information

Amino Acids

Proteins: Primary Structure

Proteins: Three-Dimensional Structure

Protein Function Part I: Myoglobin and Hemoglobin

Carbohydrates

Lipids and Biological Membranes

Membrane Transport

Enzyme Catalysis

Enzyme Kinetics, Inhibition and Control

Biochemical Signaling

Glycogen Metabolism and Gluconeogenesis

Glucose Catabolism

Citric Acid Cycle

Electron Transport and Oxidative Phosphorylation

Photosynthesis

Lipid Metabolism

Amino Acid Metabolism

Mammalian Fuel Metabolism: Integration and Regulation

Nucleotide Metabolism

Nucleic Acid Structure

Dna Replication, Repair and Recombination

Transcription and Rna Processing

Translation

Regulation of Gene Expression

Filters

Consider the following metabolic reaction: Succinyl-CoA + Acetoacetate $\rarr$ Acetoacetyl-CoA + Succinate $\Delta$ G°' = -1.25 kJ/mol This reaction is

The K_eq is 0.503 at 25°C for the following reaction.What is the $\Delta$ G°' for this reaction? D-Glucose-6-phosphate $\rarr$ D-Fructose-6-phosphate $\Delta$ G°'= ?

If the diagram below represents a catabolic pathway, and enzyme 1 requires NAD⁺, what type of reaction does enzyme 1 catalyze?

I have discovered a new metabolic enzyme which utilizes NAD⁺ as a coenzyme.Which of the following could be true based on this information?

Matching -Prokaryotes that are able to synthesize all of their cellular components from simple molecules such as CO₂, H₂O, NH₃, and H₂S are called ______.

Consider the following metabolic reaction: Succinyl-CoA + Acetoacetate $\rarr$ Acetoacetyl-CoA + Succinate $\Delta$ G°' = -1.25 kJ/mol What is the K_eq for this reaction at 25°C?

Acyl phosphates such as 1,3-bisphosphoglycerate have a phosphoryl group transfer potential compared to ATP, which can be recognized by the _ $\Delta$ G°' values for hydrolysis.