Bios 242 Week 1 Concepts: The Cell
QUESTIONS AND VERIFIED CORRECT
ANSWERS GRADED A+ [LATEST 2026-
2027] 100% GUARANTEED PASS
Protozoa: Protozoa are single-celled eukaryotes that are similar to animals in their nutritional
needs and cellular structure. Most are capable of locomotion, and some are pathogens that
cause disease.
Algae: Algae are plantlike eukaryotes that are photosynthetic; that is, they make their own food
from carbon dioxide and water, using energy from sunlight. The algae include multicellular and
unicellular organisms.
Parasitic Worms: Parasitic worms are invertebrate worm like animals that cause several
infectious diseases. They range in size from microscopic forms to adult tapeworms several
meters in length.
Acellular infectious agents- Viruses, viroids and prions are so small that they were hidden from
microbiologists until the invention of the electron microscope i
,Viruses belong to the _______________ category of microorganisms. - CORRECT ANSWER-
Viruses are acellular infectious agents that are made up of nucleic acid (DNA or RNA) and
protein coat only and lack organization of a true cell.
Bacteria and Archaea are - CORRECT ANSWER-Prokaryotic organisms
Fungi and Protozoa are - CORRECT ANSWER-Eukaryotic organisms
Prion and Viroids are - CORRECT ANSWER-Acellular.
Prokaryotic Organisms - CORRECT 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 - CORRECT ANSWER-Unicellular or Multicellular; membrane bound
organelles like nucleus, mitochondria, golgi complex; bigger in size. Include fungi, protozoa,
algae and helminthes.
Viruses - CORRECT 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: - CORRECT 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. - CORRECT 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 - CORRECT 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 - CORRECT 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 - CORRECT 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.
QUESTIONS AND VERIFIED CORRECT
ANSWERS GRADED A+ [LATEST 2026-
2027] 100% GUARANTEED PASS
Protozoa: Protozoa are single-celled eukaryotes that are similar to animals in their nutritional
needs and cellular structure. Most are capable of locomotion, and some are pathogens that
cause disease.
Algae: Algae are plantlike eukaryotes that are photosynthetic; that is, they make their own food
from carbon dioxide and water, using energy from sunlight. The algae include multicellular and
unicellular organisms.
Parasitic Worms: Parasitic worms are invertebrate worm like animals that cause several
infectious diseases. They range in size from microscopic forms to adult tapeworms several
meters in length.
Acellular infectious agents- Viruses, viroids and prions are so small that they were hidden from
microbiologists until the invention of the electron microscope i
,Viruses belong to the _______________ category of microorganisms. - CORRECT ANSWER-
Viruses are acellular infectious agents that are made up of nucleic acid (DNA or RNA) and
protein coat only and lack organization of a true cell.
Bacteria and Archaea are - CORRECT ANSWER-Prokaryotic organisms
Fungi and Protozoa are - CORRECT ANSWER-Eukaryotic organisms
Prion and Viroids are - CORRECT ANSWER-Acellular.
Prokaryotic Organisms - CORRECT 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 - CORRECT ANSWER-Unicellular or Multicellular; membrane bound
organelles like nucleus, mitochondria, golgi complex; bigger in size. Include fungi, protozoa,
algae and helminthes.
Viruses - CORRECT 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: - CORRECT 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. - CORRECT 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 - CORRECT 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 - CORRECT 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 - CORRECT 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.
