Question 1

What is the most sensitive method to determine the presence of an isotope such as ¹⁴C in a sample?

Accepted Answer

A)  nuclear magnetic resonance (NMR) spectroscopy 
B)  radioactive decay 
C)  mass spectroscopy 
D)  polymerase chain reaction 
E)  high-performance liquid chromatography 
A)  nuclear magnetic resonance (NMR) spectroscopy 
B)  radioactive decay 
C)  mass spectroscopy 
D)  polymerase chain reaction 
E)  high-performance liquid chromatography

Question 2

How does the reductive or reverse TCA cycle differ from the regular TCA cycle?

Accepted Answer

Most of the individual reactions of the

Question 3

How many turns of the Calvin cycle does it take to provide one molecule of glyceraldehyde-3-phosphate into the biosynthesis of glucose?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  6 
E)  5 
A)  1 
B)  2 
C)  3 
D)  6 
E)  5

Question 4

Cyanobacteria are believed to generate the majority of oxygen gas in Earth's atmosphere. What allows them to produce oxygen?

Accepted Answer

A)  photosynthesis in which H₂S is the electron source 
B)  photosynthesis in which water photolysis produces H+, e-, and O₂ 
C)  bacteriorhodopsin-based photosynthesis 
D)  being near the surface of a pond where more oxygen is available 
E)  possession of a variety of chlorophylls to absorb a wide range of wavelengths of light 
A)  photosynthesis in which H₂S is the electron source 
B)  photosynthesis in which water photolysis produces H+, e-, and O₂ 
C)  bacteriorhodopsin-based photosynthesis 
D)  being near the surface of a pond where more oxygen is available 
E)  possession of a variety of chlorophylls to absorb a wide range of wavelengths of light

Question 5

Which of the following drugs is a nonribosomal peptide antibiotic?

Accepted Answer

A)  erythromycin 
B)  penicillin 
C)  tetracycline 
D)  vancomycin 
E)  ciprofloxacin 
A)  erythromycin 
B)  penicillin 
C)  tetracycline 
D)  vancomycin 
E)  ciprofloxacin

Question 6

Which of the following molecules provides a way to simultaneously assimilate one carbon atom and one nitrogen atom during purine biosynthesis?

Accepted Answer

A)  acetyl-CoA 
B)  acetyl-ACP 
C)  malonyl-ACP 
D)  carbamoyl phosphate 
E)  NADPH 
A)  acetyl-CoA 
B)  acetyl-ACP 
C)  malonyl-ACP 
D)  carbamoyl phosphate 
E)  NADPH

Question 7

The ________ pathway is utilized for carbon fixation in chloroplasts and cyanobacteria.

Accepted Answer

A)  acetyl-CoA 
B)  reverse tricarboxylic acid cycle 
C)  3-hydroxypropionate cycle 
D)  reductive pentose phosphate cycle 
E)  Krebs cycle 
A)  acetyl-CoA 
B)  reverse tricarboxylic acid cycle 
C)  3-hydroxypropionate cycle 
D)  reductive pentose phosphate cycle 
E)  Krebs cycle

Question 8

Which of the following is the reducing agent in the saturation step of polyketide biosynthesis?

Accepted Answer

A)  NADH 
B)  NADPH 
C)  ferredoxin 
D)  H₂ 
E)  O₂ 
A)  NADH 
B)  NADPH 
C)  ferredoxin 
D)  H₂ 
E)  O₂

Question 9

Which of the following pathways is NOT a route for CO₂ assimilation?

Accepted Answer

A)  reductive acetyl-CoA pathway 
B)  gluconeogenesis pathway 
C)  hydroxypropionate cycle 
D)  reductive pentose phosphate cycle 
E)  reverse TCA cycle 
A)  reductive acetyl-CoA pathway 
B)  gluconeogenesis pathway 
C)  hydroxypropionate cycle 
D)  reductive pentose phosphate cycle 
E)  reverse TCA cycle

Question 10

Chorismate is used in a branched pathway to synthesize

Accepted Answer

A)  fatty acids. 
B)  polyketide antibiotics 
C)  purines and pyrimidines 
D)  aromatic amino acids 
E)  tetrapyrroles 
A)  fatty acids. 
B)  polyketide antibiotics 
C)  purines and pyrimidines 
D)  aromatic amino acids 
E)  tetrapyrroles

What is the most sensitive method to determine the presence of an isotope such as ¹⁴C in a sample?

How does the reductive or reverse TCA cycle differ from the regular TCA cycle?

How many turns of the Calvin cycle does it take to provide one molecule of glyceraldehyde-3-phosphate into the biosynthesis of glucose?

Cyanobacteria are believed to generate the majority of oxygen gas in Earth's atmosphere. What allows them to produce oxygen?

Which of the following drugs is a nonribosomal peptide antibiotic?

Which of the following molecules provides a way to simultaneously assimilate one carbon atom and one nitrogen atom during purine biosynthesis?

The ________ pathway is utilized for carbon fixation in chloroplasts and cyanobacteria.

Which of the following is the reducing agent in the saturation step of polyketide biosynthesis?

Which of the following pathways is NOT a route for CO₂ assimilation?

Chorismate is used in a branched pathway to synthesize

Microbial Life: Origin and Discovery

Observing the Microbial Cell

Cell Structure and Function

Bacterial Culture, Growth, and Development

Environmental Influences and Control of Microbial Growth

Viruses

Genomes and Chromosomes

Transcription, Translation, and Bioinformatics

Gene Transfer, Mutations, and Genome Evolution

Molecular Regulation

Viral Molecular Biology

Biotechniques and Synthetic Biology

Energetics and Catabolism

Electron Flow in Organotrophy, Lithotrophy, and Phototrophy

Food and Industrial Microbiology

Origins and Evolution

Bacterial Diversity

Archaeal Diversity

Eukaryotic Diversity

Microbial Ecology

Microbes in Global Elemental Cycles

Human Microbiota and Innate Immunity

The Adaptive Immune Response

Microbial Pathogenesis

Microbial Diseases

Antimicrobial Therapy

Clinical Microbiology and Epidemiology

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Exam 15: Biosynthesis

What is the most sensitive method to determine the presence of an isotope such as ¹⁴C in a sample?

How does the reductive or reverse TCA cycle differ from the regular TCA cycle?

How many turns of the Calvin cycle does it take to provide one molecule of glyceraldehyde-3-phosphate into the biosynthesis of glucose?

Cyanobacteria are believed to generate the majority of oxygen gas in Earth's atmosphere. What allows them to produce oxygen?

Which of the following drugs is a nonribosomal peptide antibiotic?

Which of the following molecules provides a way to simultaneously assimilate one carbon atom and one nitrogen atom during purine biosynthesis?

The ________ pathway is utilized for carbon fixation in chloroplasts and cyanobacteria.

Which of the following is the reducing agent in the saturation step of polyketide biosynthesis?

Which of the following pathways is NOT a route for CO₂ assimilation?

Chorismate is used in a branched pathway to synthesize

Microbial Life: Origin and Discovery

Observing the Microbial Cell

Cell Structure and Function

Bacterial Culture, Growth, and Development

Environmental Influences and Control of Microbial Growth

Viruses

Genomes and Chromosomes

Transcription, Translation, and Bioinformatics

Gene Transfer, Mutations, and Genome Evolution

Molecular Regulation

Viral Molecular Biology

Biotechniques and Synthetic Biology

Energetics and Catabolism

Electron Flow in Organotrophy, Lithotrophy, and Phototrophy

Food and Industrial Microbiology

Origins and Evolution

Bacterial Diversity

Archaeal Diversity

Eukaryotic Diversity

Microbial Ecology

Microbes in Global Elemental Cycles

Human Microbiota and Innate Immunity

The Adaptive Immune Response

Microbial Pathogenesis

Microbial Diseases

Antimicrobial Therapy

Clinical Microbiology and Epidemiology

Filters