MCB 4403 FSU Zhu Exam #1 questions
with 100% complete solutions
Which of the following statements is true about all microbes?
A. All microbes are single cells.
B. All microbes cause disease.
C. All microbes contain a genome.
D. All microbes contain a nucleus. - correct answer ✔✔All microbes contain a genome.
Identify the three domains of life according to the classification system developed by Carl
Woese: Bacteria, Archaea, _________ - correct answer ✔✔Eukarya
Classify each of the following groups of organisms as prokaryotes or eukaryotes by dragging the
items into the correct category
Prokaryotes: Archaea, Bacteria
Eukaryotes: _________, Plants, Animals, _________, Fungi - correct answer ✔✔Protists, Fungi
Which component was absent from Leeuwenhoek's microscopes? - correct answer ✔✔Light
Source
Louis Pasteur used a swan-necked flask to demonstrate that dust in the air is a source of
____________ - correct answer ✔✔living microbes
,A __________ refers to a culture that contains a single type or strain of a microorganism -
correct answer ✔✔pure culture
Lack of a _________ is a unique characteristic of viruses that distinguishes them from the other
major groups of microorganisms? - correct answer ✔✔cell structure
Koch's Postulates - correct answer ✔✔Set of rules for proving that a microorganism causes a
specific disease.
Microorganisms from largest to smallest in size:
Pelomyxa - ________ found in soil -->
Spirogyra - Aquatic Algae -->
E. Coli - ___________ in the human colon -->
Prochloroccocus - Photosynthetic marine __________ -->
Varicella-zoster _________ causation of chickenpox - correct answer ✔✔Ameba, Bacteria, Virus
What set of characteristics allow bacteria to evolve so rapidly?
Large population, rapid growth rate, ___________ - correct answer ✔✔Transformation
The process by which DNA is amplified in vitro in the laboratory is called _________ - correct
answer ✔✔PCR
, Bacteria and archaea fix nitrogen (N2) by reducing it to ammonia (NH3), the form of nitrogen
assimilated by plants. The main reservoir of nitrogen is ______ - correct answer ✔✔atmosphere
Match each of the following scientists with his or her major contribution to microbiology:
Nightingale: Quantified the impact of __________ on populations
Hooke: Record observations of microbes through microscope
Spallanzani: Showed that microbes arise from preexisting microbes and that heat sterilization
can prevent microbial growth
Pasteur: Discovered the microbial basis of fermentation and showed that providing ______ does
not enable spontaneous generation
Tyndall: Showed that repeated cycles of heat were necessary to eliminate _________ formed by
certain kinds of bacteria. - correct answer ✔✔disease, oxygen, spores
Match each of the following microbiologists to a significant contribution to the field of
microbiology:
Fleming: developed ____________
Ivanovsky: discovered viruses as filterable __________ particles.
Koch: devised techniques of __________
Jenner: Established practice of vaccination
with 100% complete solutions
Which of the following statements is true about all microbes?
A. All microbes are single cells.
B. All microbes cause disease.
C. All microbes contain a genome.
D. All microbes contain a nucleus. - correct answer ✔✔All microbes contain a genome.
Identify the three domains of life according to the classification system developed by Carl
Woese: Bacteria, Archaea, _________ - correct answer ✔✔Eukarya
Classify each of the following groups of organisms as prokaryotes or eukaryotes by dragging the
items into the correct category
Prokaryotes: Archaea, Bacteria
Eukaryotes: _________, Plants, Animals, _________, Fungi - correct answer ✔✔Protists, Fungi
Which component was absent from Leeuwenhoek's microscopes? - correct answer ✔✔Light
Source
Louis Pasteur used a swan-necked flask to demonstrate that dust in the air is a source of
____________ - correct answer ✔✔living microbes
,A __________ refers to a culture that contains a single type or strain of a microorganism -
correct answer ✔✔pure culture
Lack of a _________ is a unique characteristic of viruses that distinguishes them from the other
major groups of microorganisms? - correct answer ✔✔cell structure
Koch's Postulates - correct answer ✔✔Set of rules for proving that a microorganism causes a
specific disease.
Microorganisms from largest to smallest in size:
Pelomyxa - ________ found in soil -->
Spirogyra - Aquatic Algae -->
E. Coli - ___________ in the human colon -->
Prochloroccocus - Photosynthetic marine __________ -->
Varicella-zoster _________ causation of chickenpox - correct answer ✔✔Ameba, Bacteria, Virus
What set of characteristics allow bacteria to evolve so rapidly?
Large population, rapid growth rate, ___________ - correct answer ✔✔Transformation
The process by which DNA is amplified in vitro in the laboratory is called _________ - correct
answer ✔✔PCR
, Bacteria and archaea fix nitrogen (N2) by reducing it to ammonia (NH3), the form of nitrogen
assimilated by plants. The main reservoir of nitrogen is ______ - correct answer ✔✔atmosphere
Match each of the following scientists with his or her major contribution to microbiology:
Nightingale: Quantified the impact of __________ on populations
Hooke: Record observations of microbes through microscope
Spallanzani: Showed that microbes arise from preexisting microbes and that heat sterilization
can prevent microbial growth
Pasteur: Discovered the microbial basis of fermentation and showed that providing ______ does
not enable spontaneous generation
Tyndall: Showed that repeated cycles of heat were necessary to eliminate _________ formed by
certain kinds of bacteria. - correct answer ✔✔disease, oxygen, spores
Match each of the following microbiologists to a significant contribution to the field of
microbiology:
Fleming: developed ____________
Ivanovsky: discovered viruses as filterable __________ particles.
Koch: devised techniques of __________
Jenner: Established practice of vaccination
