MICROORGANISMS, MADIGAN, 16TH
EDITION (CHAPTER 1-34) EXAM
QUESTIONS WITH CORRECT
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PASS||UPDATED 2026/2027
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Microbial Growth - ANSWER ✓ The increase in size and number of microbial
cells.
Viruses - ANSWER ✓ Infectious agents that replicate inside the cells of living
organisms.
Molecular Information Flow - ANSWER ✓ The transfer of genetic information
and protein processing in microbial cells.
Microbial Regulatory Systems - ANSWER ✓ The mechanisms that control gene
expression and cellular processes in microorganisms.
Molecular Aspects of Microbial Growth - ANSWER ✓ The molecular processes
and factors that contribute to microbial growth.
Genetics of Bacteria - ANSWER ✓ The study of the genetic material and
processes in bacteria.
Microbial Genomics - ANSWER ✓ The study of the complete set of genes in
microorganisms.
Viral Genomics - ANSWER ✓ The study of the complete set of genes in viruses.
, Biotechnology - ANSWER ✓ The use of living organisms or their products to
create useful products or processes.
Synthetic Biology - ANSWER ✓ The design and construction of new biological
parts, devices, and systems.
Microbial Evolution - ANSWER ✓ The changes in the genetic makeup of
microorganisms over time.
Metabolic Diversity - ANSWER ✓ The variety of metabolic pathways and
processes in microorganisms.
Ecological Diversity - ANSWER ✓ The range of habitats and ecological roles
occupied by microorganisms.
Phylogenetic Diversity - ANSWER ✓ The evolutionary relationships and
diversity of microorganisms.
Diversity of Archaea - ANSWER ✓ The variety of archaea and their
characteristics.
Diversity of Microbial Eukarya - ANSWER ✓ The variety of microbial eukarya
and their characteristics.
Microbial Systems - ANSWER ✓ The study of microbial communities and their
interactions with the environment.
Microbial Ecosystems - ANSWER ✓ The communities of microorganisms and
their physical and chemical environments.
Nutrient Cycles - ANSWER ✓ The cycling of nutrients through ecosystems by
microorganisms.
Microbiology of the Built Environment - ANSWER ✓ The study of
microorganisms in human-made environments.
, Microbial Symbioses - ANSWER ✓ The interactions between microorganisms
and other organisms.
Microbial Infection - ANSWER ✓ The invasion and colonization of host
organisms by microorganisms.
Innate Immunity - ANSWER ✓ The nonspecific defense mechanisms of the host
against microorganisms.
Adaptive Immunity - ANSWER ✓ The specific defense mechanisms of the host
against microorganisms.
Immune Disorders - ANSWER ✓ Abnormalities in the immune system that lead
to disease.
What is the biological function of endospores?
A) They are bacterial reproductive structures.
B) They enable organisms to endure extremes of temperature, drying, and nutrient
depletion.
C) They transport toxins.
D) Endospores can serve as reproductive structures, enable survival in harsh
environments, and transport toxins. - ANSWER ✓ B) They enable organisms to
endure extremes of temperature, drying, and nutrient depletion.
The lipids in the cytoplasmic membrane of Bacteria and ________ contain ester
linkages, while the cytoplasmic membrane of ________ contain ether linkages.
A) Archaea / Eukarya
B) Archaea / fungi
C) Eukarya / prokaryotes
D) Eukarya / Archaea - ANSWER ✓ D) Eukarya/Archea
Electron microscopy has greater ________ than light microscopy, because the
wavelengths of visible light are much larger than the wavelengths of electrons.
A) contrast
B) magnification
C) resolution
D) penetration - ANSWER ✓ C) resolution
, Frederick Griffith - ANSWER ✓ scientist who proved transformation with his
mice and R/S strains; first to prove DNA was genetic material
Avery-MacLeoud-McCarty - ANSWER ✓ scientists who proved transformation
in vitro
James Watson, Francis Crick, Rosalind Franklin - ANSWER ✓ scientists who
first described the structure of DNA
Emile Zuckerland and Linus Pauling - ANSWER ✓ scientists that discovered
molecular sequences and evolutionary relationships
Carl Woese - ANSWER ✓ scientist who realized rRNA sequences could be used
to infer evolutionary relationships
phylogenetic tree - ANSWER ✓ depicts phylogeny of all cells
Domain: Bacteria - ANSWER ✓ Domain: ???
-prokaryotes
-usually undifferentiated single cells 1-10 micrometers but can vary
-30 major phylogenetic lineages, very diverse
Domain: Archaea - ANSWER ✓ Domain: ???
-prokaryotes
-less morphological diversity
-mostly undifferentiated cells 1-10 micrometers long
-5 well-described phylogenies
-have the most extremophiles, but have non-extremophiles, too
-lack known parasites or pathogens of plants/animals
Domain: Eukarya - ANSWER ✓ Domain: ???
-plants, animals, fungi
-first were unicellular, but now multicellular
-at least six kingdoms
-large diversity
viruses - ANSWER ✓ -obligate parasites that only replicate within a host cell
-do not carry out own metabolism