Take this interesting and typical quiz on microbiology and associated microscopic nonliving biological particles that interact with living things
It determines the shape of the bacteria
It prevents the bacteria from lysis
It contains peptidoglycan
It may be targeted by antibiotics such as penicillin
All of the above
They have relatively simple structures
Most of them have short generation time allowing data collection in a short period of time
A large population can be kept in a small space
It is easy to visualize any transfer of genetic material
A, B and C are correct
The specific causative agent must be found in every case of the disease
The disease organism must be isolated in pure culture
Inoculation of a sample of the culture into a healthy, susceptible animal must produce the same disease
Human subjects must be inoculated with the organism to assay its virulence
None of the above
Visualize small molecules inside the cells
Observe living specimens
Deal with refractive index minimizing blurry images
Work with specimens with differentially staining it
40x objective combined with 20x ocular
100x objective combined with 10x ocular
100x objective combined with 20x ocular
20x ovjective combined with 20x ocular
Wavelength; frequency
Resolution; detection
Resolution; magnification
Frequency; resolution
Refraction; detection
Increase the refractive index, and increase the resolution
Avoid contact between the objective and the slide
Increase the refractive index and decrease the resolution
Decrease the refractive index allowing more light to reach the slide
Capsules
Endospores
Cell wall
Flagella
All of the above
Fluid mosaic model; currently accepted model of cell membranes
Cell envelope; association of plasma membrane and cell wall
Nucleoid; irregular shaped region where genetic material is found
Spirillum; a rigid spiral-shaped bacterial or archaeal cell
None, there is no correlation between surface area and cell volume
When surface area-to-volume ratio decreases, nutrient uptake becomes more efficient
When surface area-to-volume ratio increases, nutrient uptake becomes more efficient
When the surface area-to-volume ratio increases, cells can easily get desiccated
Monotrichous
Peritrichous
Lophotrichous
Halotrichous
Amphitrichous
Structural support; secretin of virulence factor; hopanoids
Ion transport osmotic maintenance; sterols
Structural support; secretion of virulence factor; sterols
Fluidity; virulence; phospholipids
Ion transport; osmotic maintenance; phospholipids
Murein
Pseudopeptidoglycan
Acid-fast
Lipopolysacharide
None of the above are correct
The development of the pasteurization process
Development of vaccine against smallpox
The description of a protozoan as the infection agent in silkworms causing pebrine disease
The description of the fermentation process and its results when carried out by yeast or bacteria
Electron microscope images allow us to describe and visualize living specimens
The transmission electron microscope used magnetic lenses to form an image from electrons that have passed through a very thin section of a specimen
The scanning electron microscope is used to examine the surfaces of microorganismsmin great detail
Electron microscopes are able to detect and resolve particles as small as proteins
Absence of ribosomes
Absence of DNA
Absence of a membrane-limited nucleus
Absence of membranous organelles
C & D are correct
Bacteria and protists
Protists and archaea
Protist and viruses
Bacteria and archaea
Viruses and viroids
Development of Bunsen burners; plates
Development of microscopes; development of techniques for isolating microbes
Establishment of Koch's postulates; plates
Invention of plates; loops
Generation time
Nutrient requirement
Temperature requirement
Cellular shape
A, B & C are correct
Longer; better
Longer; poor
Medium; better
Shorter;better
Shorter;worse
It would be impossible to have a sterile medium
It would be difficult to link microorganism to certain diseases
It would be hard to isolate cultures
All of the above
Monolayer, more rigid
Triple layer, more rigid
Outer membrane, more rigid
Monolayer, less rigid
Triple layer, less rigid
They are resistant to heat, chemicals, radiation a desiccation
Endospore formation is triggered by lack of nutrients
Most bacteria and archaea are able to form endospores
Resistance to physical factors is due to high amount of dipocolinic acid and calcium
Ribosomal RNA
Stromatolites
Microbial evolution
Cellular metabolism
Probionts
Designated
Exact
Defined
Selective
Aesthetic
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