FUNDAMENTALS OF MICROBIOLOGY WITH
LAB EXAM 3 FINAL TEST PAPER 2026 FULL
QUESTIONS AND SOLUTIONS VERIFIED A+
◉ Prokaryotic Organisms Answer: Unicellular; contain no
membrane bound organelles; have simple structures; are 10 times
smaller than eukaryotes. Include archaea and bacteria. Only bacteria
are pathogenic
◉ Eukaryotic Organisms Answer: Unicellular or Multicellular;
membrane bound organelles like nucleus, mitochondria, golgi
complex; bigger in size. Include fungi, protozoa, algae and
helminthes.
◉ Viruses Answer: Acellular infectious agents, can infect bacteria or
any other eukaryotic cells. Made up of nucleic acid (DNA or RNA)
and protein coat only.
◉ Biofilms: Answer: Bacteria in some environments form into
structures called biofilms. These attach to a surface, accumulate into
complex layers, and are cemented by sugars, e.g., in diseases like ear
infections, prostate infections, some lung infections.
,◉ The bacteria and archae are prokaryotes that do not have a
nucleus or membrane-bound organelles but are cellular
microorganisms. Answer: The eukaryotes will have a nucleus,
mitochondria, etc. The viruses do not have cells and include AIDS
virus and bacterial viruses.
◉ Medical Microbiology - This branch deals with microbes that
cause diseases in humans and animals. Researchers examine factors
that make the microbes virulent and mechanisms for inhibiting
them.
Figure A. A staff microbiologist at the Centers for Disease Control
and Prevention (CDC) examines a culture of influenza virus identical
to one that circulated in 1918. The lab is researching why this form
of the virus was so deadly and how to develop vaccines and other
treatments. Handling such deadly p Answer:
◉ Public Health Microbiology and Epidemiology - These branches
monitor and control the spread of diseases in communities.
Institutions involved in this work are the U.S. Public Health Service
(USPHS) with its main agency, the Centers for Disease Control and
Prevention (CDC) located in Atlanta, Georgia, and the World Health
Organization (WHO), the medical limb of the United Nations.
Figure B. Two epidemiologists conducting interviews as part of the
effort to curb the cholera epidemic in Haiti. Pho Answer: Public
, Health Microbiology and Epidemiology - Monitor and control the
spread of diseases in communities
◉ Immunology - This branch studies the complex web of protective
substances and cells produced in response to infection. It includes
such diverse areas as vaccination, blood testing, and allergy.
Immunologists also investigate the role of the immune system in
cancer and autoimmune diseases.
Figure C. An immunologist and students freeze dry samples.
© Ariel Skelley/Blend Images LLC RF Answer:
◉ Industrial Microbiology - This branch safeguards our food and
water, and includes biotechnology, the use of microbial metabolism
to arrive at a desired product, ranging from bread making to gene
therapy. Microbes can be used to create large quantities of
substances such as amino acids, beer, drugs, enzymes, and vitamins.
Figure D. Scientists use a multispectral imaging system for
inspection of chickens.
USDA-ARS/tephen R Ausmus
Agricultural Microbiology - This branch is concerned with the rela
Answer: Industrial microbiologists safeguard our food and water,
and includes biotechnology,
LAB EXAM 3 FINAL TEST PAPER 2026 FULL
QUESTIONS AND SOLUTIONS VERIFIED A+
◉ Prokaryotic Organisms Answer: Unicellular; contain no
membrane bound organelles; have simple structures; are 10 times
smaller than eukaryotes. Include archaea and bacteria. Only bacteria
are pathogenic
◉ Eukaryotic Organisms Answer: Unicellular or Multicellular;
membrane bound organelles like nucleus, mitochondria, golgi
complex; bigger in size. Include fungi, protozoa, algae and
helminthes.
◉ Viruses Answer: Acellular infectious agents, can infect bacteria or
any other eukaryotic cells. Made up of nucleic acid (DNA or RNA)
and protein coat only.
◉ Biofilms: Answer: Bacteria in some environments form into
structures called biofilms. These attach to a surface, accumulate into
complex layers, and are cemented by sugars, e.g., in diseases like ear
infections, prostate infections, some lung infections.
,◉ The bacteria and archae are prokaryotes that do not have a
nucleus or membrane-bound organelles but are cellular
microorganisms. Answer: The eukaryotes will have a nucleus,
mitochondria, etc. The viruses do not have cells and include AIDS
virus and bacterial viruses.
◉ Medical Microbiology - This branch deals with microbes that
cause diseases in humans and animals. Researchers examine factors
that make the microbes virulent and mechanisms for inhibiting
them.
Figure A. A staff microbiologist at the Centers for Disease Control
and Prevention (CDC) examines a culture of influenza virus identical
to one that circulated in 1918. The lab is researching why this form
of the virus was so deadly and how to develop vaccines and other
treatments. Handling such deadly p Answer:
◉ Public Health Microbiology and Epidemiology - These branches
monitor and control the spread of diseases in communities.
Institutions involved in this work are the U.S. Public Health Service
(USPHS) with its main agency, the Centers for Disease Control and
Prevention (CDC) located in Atlanta, Georgia, and the World Health
Organization (WHO), the medical limb of the United Nations.
Figure B. Two epidemiologists conducting interviews as part of the
effort to curb the cholera epidemic in Haiti. Pho Answer: Public
, Health Microbiology and Epidemiology - Monitor and control the
spread of diseases in communities
◉ Immunology - This branch studies the complex web of protective
substances and cells produced in response to infection. It includes
such diverse areas as vaccination, blood testing, and allergy.
Immunologists also investigate the role of the immune system in
cancer and autoimmune diseases.
Figure C. An immunologist and students freeze dry samples.
© Ariel Skelley/Blend Images LLC RF Answer:
◉ Industrial Microbiology - This branch safeguards our food and
water, and includes biotechnology, the use of microbial metabolism
to arrive at a desired product, ranging from bread making to gene
therapy. Microbes can be used to create large quantities of
substances such as amino acids, beer, drugs, enzymes, and vitamins.
Figure D. Scientists use a multispectral imaging system for
inspection of chickens.
USDA-ARS/tephen R Ausmus
Agricultural Microbiology - This branch is concerned with the rela
Answer: Industrial microbiologists safeguard our food and water,
and includes biotechnology,
