BROCK BIOLOGY OF MICROORGANISMS
EXAM SCRIPT 2026 COMPREHENSIVE
QUESTIONS AND VERIFIED SOLUTIONS
◉ Approximately two billion years ago, ________ were primarily
responsible for initially oxygenating Earth.
Answer: cyanobacteria
◉ Archaea and Bacteria are unified as prokaryotes in lacking ________
which Eukarya contain, such as mitochondria.
Answer: nuclei and membrane-enclosed organelles
◉ Bioremediation ________ by introducing pollutant-consuming
microorganisms or specific nutrients that help microorganisms
degrade pollutants.
Answer: accelerates the natural cleanup process
◉ ________ was the first to identify a new form of autotrophy in which
energy is obtained from oxidizing inorganic compounds called
________.
Answer: Sergei Winogradsky / chemolithotrophy
, ◉ Electron microscopy has greater ________ than light microscopy,
because the wavelength of visible light is much larger than the
wavelength of electrons.
Answer: resolution
◉ Which of the following types of microscopy is especially effective
for viewing details of internal structures within live cells?
Answer: phase-contrast microscopy
◉ Which of the following types of microscopy could be used to
visualize the layers of the cell membrane and the cell wall?
Answer: transmission electron microscopy
◉ Who was the first researcher to provide direct experimental data
that supported the germ theory to explain infectious disease?
Answer: Koch
◉ When medical devices are left in the body, bacteria may grow on
them as ________, which makes them especially resistant to treatment.
Answer: communities
◉ Microbes that live at high temperatures in hot springs are ________.
Answer: called extremophiles.
EXAM SCRIPT 2026 COMPREHENSIVE
QUESTIONS AND VERIFIED SOLUTIONS
◉ Approximately two billion years ago, ________ were primarily
responsible for initially oxygenating Earth.
Answer: cyanobacteria
◉ Archaea and Bacteria are unified as prokaryotes in lacking ________
which Eukarya contain, such as mitochondria.
Answer: nuclei and membrane-enclosed organelles
◉ Bioremediation ________ by introducing pollutant-consuming
microorganisms or specific nutrients that help microorganisms
degrade pollutants.
Answer: accelerates the natural cleanup process
◉ ________ was the first to identify a new form of autotrophy in which
energy is obtained from oxidizing inorganic compounds called
________.
Answer: Sergei Winogradsky / chemolithotrophy
, ◉ Electron microscopy has greater ________ than light microscopy,
because the wavelength of visible light is much larger than the
wavelength of electrons.
Answer: resolution
◉ Which of the following types of microscopy is especially effective
for viewing details of internal structures within live cells?
Answer: phase-contrast microscopy
◉ Which of the following types of microscopy could be used to
visualize the layers of the cell membrane and the cell wall?
Answer: transmission electron microscopy
◉ Who was the first researcher to provide direct experimental data
that supported the germ theory to explain infectious disease?
Answer: Koch
◉ When medical devices are left in the body, bacteria may grow on
them as ________, which makes them especially resistant to treatment.
Answer: communities
◉ Microbes that live at high temperatures in hot springs are ________.
Answer: called extremophiles.
