16 Questions
Which bacterial form is characterized by a cluster or grapelike arrangement of cocci?
Staphylococci
Which bacterial form is characterized by long threads of bacilli that have not separated into single cells?
Filamentous bacillary forms
What is the main requirement for the growth of bacteria?
Proper nutrients
How do bacteria enlarge and divide?
Binary fission
What is the definition of a parasite?
An organism with an obligate relationship with another species, obtaining nourishment at the expense of the host
What is the difference between infection and infectious disease?
Infection refers to the invasion or colonization of the body by pathogenic microorganisms, whereas infectious disease refers to the host being infected and if the infection causes damage
What is virulence in the context of infectious diseases?
The degree of pathogenicity of a microbe in quantitative terms
Why were viruses initially named 'virus'?
Because they are infectious agents too small to be seen with a light microscope
What is the size of an Angstrom unit (A) in comparison to a nanometre (nm)?
One-tenth of a nanometre
Which type of virus is the largest in size?
Poxviruses
What is the composition of a virus's genome?
A single nucleic acid that stores all the vital information required by the virus for its multiplication
What are capsids composed of?
Repeating subunits arranged in a defined pattern
What industrial products can be obtained from fermentation?
Alcohol, fats, and proteins
Which fungal product is used for inducing uterine contractions and treating migraine?
Ergot
What public health problem is mentioned in the text related to fungal toxins?
Mycotoxicoses
What are Actinomycetes and fungi important sources of?
Antibiotics
Learn about the measurement of virus size in nanometers and comparison with other units. Understand the techniques used to measure virus size, and the variations in size among different types of viruses.
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