Question 1

Which of the following statements is NOT correct?

Accepted Answer

A)  All cells contain DNA as the main informational macromolecule. 
B)  All cells contain mitochondria for energy production. 
C)  All cells possess a plasma membrane. 
D)  All cells utilize a similar genetic code. 
E)  All cells contain ribosomes for protein synthesis. 
A)  All cells contain DNA as the main informational macromolecule. 
B)  All cells contain mitochondria for energy production. 
C)  All cells possess a plasma membrane. 
D)  All cells utilize a similar genetic code. 
E)  All cells contain ribosomes for protein synthesis. B

Question 2

This early microbiology pioneer developed a set of criteria for linking a specific microorganism to a specific disease.

Accepted Answer

A)  Louis Pasteur 
B)  Edward Jenner 
C)  Robert Koch 
D)  John Tyndall 
E)  Anton van Leeuwenhoek 
A)  Louis Pasteur 
B)  Edward Jenner 
C)  Robert Koch 
D)  John Tyndall 
E)  Anton van Leeuwenhoek C

Question 3

Which of these are fossilized microbial mats containing photosynthetic bacteria?

Accepted Answer

A)  Stromatolites 
B)  Biofilms 
C)  Resin 
D)  Cyanobacteria 
E)  Stalagmites 
A)  Stromatolites 
B)  Biofilms 
C)  Resin 
D)  Cyanobacteria 
E)  Stalagmites A

Question 4

What is the Endosymbiotic Theory is used to explain?

Accepted Answer

A)  the rapid evolution of viruses 
B)  antiphagocytic abilities of parasitic protozoa 
C)  pathogenicity of parasitic bacteria 
D)  presence of mitochondria in eukaryotes 
E)  development of the nucleus in eukaryotes 
A)  the rapid evolution of viruses 
B)  antiphagocytic abilities of parasitic protozoa 
C)  pathogenicity of parasitic bacteria 
D)  presence of mitochondria in eukaryotes 
E)  development of the nucleus in eukaryotes

Question 5

Which statement below is FALSE concerning the atmosphere of early earth?

Accepted Answer

A)  The atmosphere was a reducing atmosphere. 
B)  Oxygen was present in very minute amounts. 
C)  Carbon dioxide was present in very minute amounts. 
D)  Hydrogen gas was present. 
E)  Nitrogen gas was present in very large amounts. 
A)  The atmosphere was a reducing atmosphere. 
B)  Oxygen was present in very minute amounts. 
C)  Carbon dioxide was present in very minute amounts. 
D)  Hydrogen gas was present. 
E)  Nitrogen gas was present in very large amounts.

Question 6

In the study of which of these fields have unicellular microbes played an important role?

Accepted Answer

A)  biochemical pathways 
B)  protein synthesis 
C)  DNA replication 
D)  mRNA synthesis 
E)  all of the above 
A)  biochemical pathways 
B)  protein synthesis 
C)  DNA replication 
D)  mRNA synthesis 
E)  all of the above

Question 7

Macromolecules that catalyze chemical reactions in the cell are called _________.

Accepted Answer

The answer of Macromolecules that catalyze chemical reactions in the...

Question 8

Who was the first person to provide a written description of bacteria?

Accepted Answer

A)  Louis Pasteur 
B)  Edward Jenner 
C)  Robert Koch 
D)  John Tyndall 
E)  Anton van Leeuwenhoek 
A)  Louis Pasteur 
B)  Edward Jenner 
C)  Robert Koch 
D)  John Tyndall 
E)  Anton van Leeuwenhoek

Question 9

Which is the correct distinction between a heterotroph and an autotroph?

Accepted Answer

A)  An autotroph utilizes organic compounds as a carbon source and a heterotroph uses carbon dioxide as a carbon source. 
B)  An autotroph utilizes carbon dioxide as a carbon source and a heterotroph utilizes organic compounds as a carbon source. 
C)  An autotroph utilizes complex organic compounds as a carbon source and a heterotroph utilizes simple organic compounds as a carbon source. 
D)  An autotroph utilizes carbon dioxide as an energy source and a heterotroph utilizes organic compounds as an energy source. 
E)  an autotroph utilizes organic compounds as an energy source and a heterotroph utilizes carbon dioxide as an energy source . 
A)  An autotroph utilizes organic compounds as a carbon source and a heterotroph uses carbon dioxide as a carbon source. 
B)  An autotroph utilizes carbon dioxide as a carbon source and a heterotroph utilizes organic compounds as a carbon source. 
C)  An autotroph utilizes complex organic compounds as a carbon source and a heterotroph utilizes simple organic compounds as a carbon source. 
D)  An autotroph utilizes carbon dioxide as an energy source and a heterotroph utilizes organic compounds as an energy source. 
E)  an autotroph utilizes organic compounds as an energy source and a heterotroph utilizes carbon dioxide as an energy source .

Question 10

Carl Woese proposed using ribosomal RNA as a molecule to compare the evolutionary relationship between organisms.Explain why these molecules are considered excellent molecular chronometers for studying evolutionary time.

Accepted Answer

Ribosomal RNA (rRNA) is considered an ex

Question 11

Which of these is the most abundant cellular macromolecule (on a dry weight basis)?

Accepted Answer

A)  polypeptides. 
B)  lipids. 
C)  DNA. 
D)  mRNA. 
E)  rRNA. 
A)  polypeptides. 
B)  lipids. 
C)  DNA. 
D)  mRNA. 
E)  rRNA.

Question 12

Which one of the following is NOT a macromolecule?

Accepted Answer

A)  a protein 
B)  a polypeptide 
C)  DNA 
D)  mRNA 
E)  an amino acid 
A)  a protein 
B)  a polypeptide 
C)  DNA 
D)  mRNA 
E)  an amino acid

Question 13

What percent of the dry weight of the cell is composed of DNA?

Accepted Answer

A)  2 - 5 
B)  12 -15 
C)  25 - 30 
D)  35 -40 
E)  50 - 55 
A)  2 - 5 
B)  12 -15 
C)  25 - 30 
D)  35 -40 
E)  50 - 55

Question 14

In regards to metabolic diversity,which statement below is true?

Accepted Answer

A)  Eukaryotic cells possess the greatest metabolic diversity. 
B)  Archaea and Bacteria possess greater metabolic diversity than Eukarya. 
C)  Animals possess greater metabolic diversity than bacteria. 
D)  Plants possess greater metabolic diversity than bacteria. 
E)  Protozoa possess greater metabolic diversity than bacteria. 
A)  Eukaryotic cells possess the greatest metabolic diversity. 
B)  Archaea and Bacteria possess greater metabolic diversity than Eukarya. 
C)  Animals possess greater metabolic diversity than bacteria. 
D)  Plants possess greater metabolic diversity than bacteria. 
E)  Protozoa possess greater metabolic diversity than bacteria.

Question 15

What is the importance of Koch's Postulates? List the postulates.

Accepted Answer

Koch's postulates are a set of criteria

Question 16

The ___________ __________ ___________ is an extremely important molecular technique that allowed scientists to specifically amplify a specific DNA sequence.

Accepted Answer

polymerase

Question 17

The first person to describe bacteria observed under a microscope was Anton van Leeuwenhoek.

Accepted Answer

A) True 
 B)False

Question 18

Viruses are able to infect all types of cellular life forms.

Accepted Answer

A) True 
 B)False

Question 19

Which of these is required during aerobic respiration?

Accepted Answer

A)  oxygen 
B)  glucose 
C)  nitrate 
D)  pyruvate 
E)  water 
A)  oxygen 
B)  glucose 
C)  nitrate 
D)  pyruvate 
E)  water

Question 20

Which of these best describes horizontal gene transfer?

Accepted Answer

A)  mitosis followed by cytokinesis 
B)  meiosis and subsequent formation of a zygote 
C)  transfer of genes from mother cell to daughter cell 
D)  DNA replication followed by crossing over 
E)  acquisition of genes from another organism in the same generation 
A)  mitosis followed by cytokinesis 
B)  meiosis and subsequent formation of a zygote 
C)  transfer of genes from mother cell to daughter cell 
D)  DNA replication followed by crossing over 
E)  acquisition of genes from another organism in the same generation

Exam 1: The Microbial World

Which of the following statements is NOT correct?

This early microbiology pioneer developed a set of criteria for linking a specific microorganism to a specific disease.

Which of these are fossilized microbial mats containing photosynthetic bacteria?

What is the Endosymbiotic Theory is used to explain?

Which statement below is FALSE concerning the atmosphere of early earth?

In the study of which of these fields have unicellular microbes played an important role?

Macromolecules that catalyze chemical reactions in the cell are called _________.

Who was the first person to provide a written description of bacteria?

Which is the correct distinction between a heterotroph and an autotroph?

Carl Woese proposed using ribosomal RNA as a molecule to compare the evolutionary relationship between organisms.Explain why these molecules are considered excellent molecular chronometers for studying evolutionary time.

Which of these is the most abundant cellular macromolecule (on a dry weight basis)?

Which one of the following is NOT a macromolecule?

What percent of the dry weight of the cell is composed of DNA?

In regards to metabolic diversity,which statement below is true?

What is the importance of Koch's Postulates? List the postulates.

The ___________ __________ ___________ is an extremely important molecular technique that allowed scientists to specifically amplify a specific DNA sequence.

The first person to describe bacteria observed under a microscope was Anton van Leeuwenhoek.

Viruses are able to infect all types of cellular life forms.

Which of these is required during aerobic respiration?

Which of these best describes horizontal gene transfer?

Bacteria

Eukaryal Microbes

Archaea

Viruses

Cultivating Microorganisms

DNA Replication and Gene Expression

Viral Replication Strategies

Bacterial Genetic Analysis

Microbial Genomics

Regulation of Gene Expression

Microbial Biotechnology

Metabolism

Biogeochemical Cycles

Microbial Ecosystems

The Microbiology of Food and Water

Microbial Symbionts

Introduction to Infectious Diseases

Innate Host Defenses Against Microbial Invasion

Adaptive Immunity

Survival in the Host

Viral Pathogenesis

Eukaryal Microbe Pathogenesis

Control of Infectious Diseases

Filters

The _ ___ is an extremely important molecular technique that allowed scientists to specifically amplify a specific DNA sequence.