MODULE 1 MULTI-CHOICE Flashcards
(39 cards)
- Which statement is not true as a general rule?
(a) Microbial cells exist as single cells
(b) Microbial cells carry out their life processes of growth independently
(c) Microbial cells include both bacteria and viruses.
(d) Microbial cells include both algae and protozoa
(e) Microbial cells include both bacteria and archaea
(c) MICROBIAL CELLS INCLUDE BOTH BACTERIA AND VIRUSES.
- Industrial uses of microbes include:
(a) Pollution control
(b) Production of enzymes
(c) Production of food additives
(d) Production of therapeutic compounds
(e) Any of the above
(e) ANY OF THE ABOVE
- The largest mass of living material on Earth comes from:
(a) Microorganisms
(b) Plants
(c) Animals
(d) Plants and animals together
(a) MICROORGANISMS
- Archaea are:
(a) Non-cellular
(b) A major group of protozoa
(c) Prokaryotic microorganisms
(d) Eukaryotic microorganisms
(e) A major group within the domain
Bacteria
(c) PROKARYOTIC MICROORGANISMS
- Which of the following is/are characteristic of ALL cellular organisms?
(a) Communication
(b) Evolution
(c) Motility
(d) Spore formation
(e) All of the above
(b) EVOLUTION
- When we look at infectious disease statistics for the global human population as a
whole, we find the number one cause of death is by:
(a) malaria
(b) aids
(c) anthrax
(d) tuberculosis
(e) respiratory infections
(e) RESPIRATORY INFECTIONS
- Scientific method:
(a) explains natural phenomena using argument, superstition, and belief
(b) is subjective
(c) formulates an hypothesis and tests it
(d) proves theories
(e) all of the above
(c) FORMULATES AN HYPOTHESIS AND TESTS IT
- The orderly arrangement of organisms into groups through the use of a format that
shows evolutionary relationships is called?
(a) Phylogeny
(b) Classification
(c) Nomenclature
(d) Morphology
(e) None of the above
(a) PHYLOGENY
- In what/which domain(s) of life is/are microorganisms represented?
(a) Archaea
(b) Bacteria
(c) Eukarya
(d) All of the above
(e) None of the above
(d) ALL OF THE ABOVE
- Which of the following groups include members that lack DNA?
(a) Bacteria
(b) Fungi
(c) Archaea
(d) Protozoa
(e) Viruses
(e) VIRUSES
- Which of the following lack a nucleus?
(a) Animals
(b) Bacteria
(c) Fungi
(d) Protozoa
(e) None of the above
(b) BACTERIA
- Identify the individual who disproved spontaneous generation by using a swan-neck
flask to show that air and dust were the source of microbes.
(a) Carl Woese
(b) Edward Jenner
(c) Louis Pasteur
(d) Joseph Lister
(e) Martinus Beijerinck
(c) LOUIS PASTEUR
- Who was the first to observe microorganisms with a microscope?
(a) Hooke
(b) Koch
(c) Van Leeuwenhoek
(d) Pasteur
(e) Weizmann
(c) VAN LEEUWENHOEK
- Which of the following pairs is mismatched?
(a) Woese - phylogeny
(b) Ivanowski – virology
(c) Jenner – immunology
(d) Lister – biogeochemical cycles
(e) Flemming – antibiotics
(d) LISTER – BIOGEOCHEMICAL CYCLES
- Who of the following developed a set of criteria that could be used to establish a
causative link between a particular microbe and a particular disease?
(a) Robert Koch
(b) Louis Pasteur
(c) Edward Jenner
(d) Sergei Winogradsky
(e) Antoine van Leeuwenhoek
(a) ROBERT KOCH
- Who disproved the theory of spontaneous generation?
(a) Robert Koch
(b) Joseph Lister
(c) Louis Pasteur
(d) Edward Jenner
(e) Antoine van Leeuwenhoek
(c) LOUIS PASTEUR
- Who developed solid growth media that lead to the first isolation of pure bacteria?
(a) Robert Koch
(b) Joseph Lister
(c) Robert Hooke
(d) Louis Pasteur
(e) Edward Jenner
(a) ROBERT KOCH
- The resolution of a microscope can be improved by changing the:
(a) Condenser
(b) Focus adjustment
(c) Staining the microbe
(d) Intensity of light
(e) Wavelength of light
(e) WAVELENGTH OF LIGHT
- In microscopy, resolution and resolving power:
(a) Refer to the ability to see two objects clearly as two objects
(b) Are improved with increased numerical aperture
(c) Are higher with light of a lower wavelength
(d) Will be better with the use of oil immersion lenses
(e) All of the above
(e) ALL OF THE ABOVE
- Which microscope achieves the highest magnification and greatest resolution?
(a) Compound light microscope
(b) Phase-contrast microscope
(c) Darkfield microscope
(d) Fluorescence microscope
(e) Electron microscope
(e) ELECTRON MICROSCOPE
- Most prokaryotic microorganisms are difficult to see with a microscope without using
standard staining procedures because:
(a) They are too small
(b) They move too fast
(c) They lack contrast with their background
(d) a and b
(e) a, b and c
(c) THEY LACK CONTRAST WITH THEIR BACKGROUND
- Which type of staining technique allows one to distinguish between two kinds of
organisms?
(a) Negative
(b) Simple
(c) Anionic
(d) Cationic
(e) Differential
(e) DIFFERENTIAL
- The ability of light to pass through an object is referred to as:
(a) Transmission
(b) Fluorescence
(c) Diffraction
(d) Refraction
(e) Resolution
(a) TRANSMISSION
- Which of the following allows best visualisation of internal structures of bacteria?
(a) Fluorescence microscopy
(b) Phase-contrast microscopy
(c) Brightfield microscopy
(d) Transmission electron microscopy
(e) Scanning electron microscopy
(d) TRANSMISSION ELECTRON MICROSCOPY
