Question 1

How are thermodynamically unfavorable reactions driven?

Accepted Answer

Thermodynamically unfavorable

Question 2

Metabolic processes are regulated by

Accepted Answer

A)  transcriptional regulation of the amount of enzyme. 
B)  allosteric control of enzyme activity. 
C)  accessibility of substrates by compartmentalization. 
D)  covalent modification of enzymes 
E)  All of the answers are correct. 
A)  transcriptional regulation of the amount of enzyme. 
B)  allosteric control of enzyme activity. 
C)  accessibility of substrates by compartmentalization. 
D)  covalent modification of enzymes 
E)  All of the answers are correct.

Question 3

Compare ATP to acetyl CoA.

Accepted Answer

Both are activated carriers: acetyl CoA

Question 4

Which of the following is the product from the complete oxidation of carbon-containing fuels under fully aerobic conditions?

Accepted Answer

A)  oxygen 
B)  carbon monoxide 
C)  acetyl CoA 
D)  pyruvate 
E)  carbon dioxide 
A)  oxygen 
B)  carbon monoxide 
C)  acetyl CoA 
D)  pyruvate 
E)  carbon dioxide

Question 5

What substance serves as the electron donor for most reductive biosynthetic pathways?

Accepted Answer

A)  NADPH 
B)  NADH 
C)  FADH2 
D)  FMNH2 
E)  None of the answers is correct. 
A)  NADPH 
B)  NADH 
C)  FADH2 
D)  FMNH2 
E)  None of the answers is correct.

Question 6

Which of the following cellular processes require energy?

Accepted Answer

A)  performance of mechanical work 
B)  facilitated diffusion 
C)  degradation of biomolecules 
D)  active transport 
E)  performance of mechanical work and active transport 
A)  performance of mechanical work 
B)  facilitated diffusion 
C)  degradation of biomolecules 
D)  active transport 
E)  performance of mechanical work and active transport

Question 7

An example of an isomerization reaction would be

Accepted Answer

A)  the conversion of succinate to fumarate using FAD. 
B)  the addition of carbon dioxide to pyruvate to form oxaloacetate. 
C)  the conversion of citrate to isocitrate. 
D)  the hydrolysis of a peptide bond. 
E)  None of the answers is correct. 
A)  the conversion of succinate to fumarate using FAD. 
B)  the addition of carbon dioxide to pyruvate to form oxaloacetate. 
C)  the conversion of citrate to isocitrate. 
D)  the hydrolysis of a peptide bond. 
E)  None of the answers is correct.

Question 8

What general factors contribute to the high phosphoryl-group transfer of ATP?

Accepted Answer

Resonance stabilizat

Question 9

An acetyl group can be attached to coenzyme A by a _______________ bond.

Accepted Answer

The answer of An acetyl group can be attached to...

Question 10

What type of organism obtains chemical energy from oxidation of complex carbon molecules?

Accepted Answer

A)  chemotrophs 
B)  phototrophs 
C)  heterotrophs 
D)  autotrophs 
E)  None of the answers is correct. 
A)  chemotrophs 
B)  phototrophs 
C)  heterotrophs 
D)  autotrophs 
E)  None of the answers is correct.

Exam 15: Metabolism: Basic Concepts and Design

How are thermodynamically unfavorable reactions driven?

Metabolic processes are regulated by

Compare ATP to acetyl CoA.

Which of the following is the product from the complete oxidation of carbon-containing fuels under fully aerobic conditions?

What substance serves as the electron donor for most reductive biosynthetic pathways?

Which of the following cellular processes require energy?

An example of an isomerization reaction would be

What general factors contribute to the high phosphoryl-group transfer of ATP?

An acetyl group can be attached to coenzyme A by a _______________ bond.

What type of organism obtains chemical energy from oxidation of complex carbon molecules?

Biochemistry: An Evolving Science

Protein Composition and Structure

Exploring Proteins and Proteomes

DNA, RNA, and the Flow of Genetic Information

Exploring Genes and Genomes

Exploring Evolution and Bioinformatics

Hemoglobin: a Portrait of a Protein in Action

Enzymes: Basic Concepts and Kinetics

Catalytic Strategies

Regulatory Strategies

Carbohydrates

Lipids and Cell Membranes

Membrane Channels and Pumps

Signal-Transduction Pathways

Glycolysis and Gluconeogenesis

The Citric Acid Cycle

Oxidative Phosphorylation

The Light Reactions of Photosynthesis

The Calvin Cycle and the Pentose Phosphate Pathway

Glycogen Metabolism

Fatty Acid Metabolism

Protein Turnover and Amino Acid Catabolism

The Biosynthesis of Amino Acids

Nucleotide Biosynthesis

Biosynthesis of Membrane Lipids and Steroids

The Integration of Metabolism

DNA Replication, repair, and Recombination

RNA Synthesis and Processing

Protein Synthesis

The Control of Gene Expression in Prokaryotes

The Control of Gene Expression in Eukaryotes

Sensory Systems

The Immune System

Molecular Motors

Drug Development

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