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WorksheetsQuiz 1
Total questions: 10
Worksheet time: 8mins
Which of the following is not a characteristic of bacteria?
Have peptidoglycan cell walls.
Have the same shape.
Grow by binary fission.
Have the ability to move.
Prokaryotic.
Which of the following temperatures would kill a mesophile?
37°C
−50°C
0°C
60°C
9°C
All of the following statements about scientific nomenclature
are correct except:
Each name consists of a genus and aspecific epithet.
Each name is specific.
Names vary with geographical location.
Linnaeus first designed it.
The names are standardized.
Indicate the beneficial activity of microorganisms.
Microorganisms use carbon dioxide
Microorganisms are useful in the treatment of diseases.
Microorganisms are used in sewage treatment processes.
Microorganisms provide nitrogen forplant growth.
Microorganisms are used as food forhumans.
Which of the following is
not a characteristic of biofilms?
Antibiotic resistance.
Hydrogel.
Physico-chemical properties.
Iron deficiency.
Quorum sensing.
Imagine looking through a microscope
at a field of red rods and
blue cocci stained with Gram's staining.
Conclude the observation shown in the Figure.
Made a mistake in staining.
Old bacterial cells.
Young bacterial cells.
Two different species.
Over decolourisation.
Lavoisier demonstrated that oxygen was the essential component of air,
which contradicts Spallanzani's claim on spontaneous generation.
Pick the true statement.
All life requires air.
Only disease-causing organisms require air.
Lavoisier was mistaken.
Some microbes do not require air.
Louis Pasteur kept air out of his biogenesis experiments.
Which of the following statements about fimbriae is
incorrect?
They are composed of pilin.
They may be used for motility.
They may be used for attachment.
They are found in gram-negative cells.
They are composed of protein.
The student inoculated 100 facultatively anaerobic cells onto nutrient agar
and cultured them aerobically.
Then 100 cells of the same species were inoculated onto the second nutrient agar and cultured anaerobically.
Predict the result after the incubation has lasted for 24 hours.
The same number of colonies on both plates.
More colonies on the aerobic plate.
More colonies on the anaerobic plate.
Fewer colonies on the anaerobic plate.
Fewer colonies on the aerobic plate.
The emergence of new infectious diseases is probably
due to the following except:
Changing environments (e.g., flood,drought, pollution).
The ability of humans to travel by air.
The need for bacteria to cause disease.
A pathogen crosses the species barrier.
The increasing human population
