This set of Food Microbiology and Contamination Multiple Choice Questions & Answers (MCQs) focuses on “Foodborne Disease and Illness”.
1. Bacteria possess the property of ___________ for communication.
a) Quorum Sensing
b) Contact Inhibition
c) Mobility
d) Apoptosis
View Answer
Explanation: The regulation of gene expression to in response to fluctuations in cell density is called quorum sensing. This is possible with the help of auto inducers which increase as a function of cell density.
2. Specific regions of bacterial genetic material containing virulence genes are called _________
a) Pathogenicity oceans
b) Pathogenicity islands
c) Etiological oceans
d) Etiological islands
View Answer
Explanation: Pathogenicity islands are taken up by the bacteria through horizontal gene transfer. They are found only in pathogenic organisms and are usually present in both, Gram-positive as well as Gram-negative organisms.
3. Pathogenesis is the biological mechanism of a disease.
a) True
b) False
View Answer
Explanation: Pathogenesis can explain the origin of the disease as well as the mechanism of contracting the disease. It can describe the morphological characteristics of the disease as well as its intensity.
4. The study of causation is called ___________
a) Bromatology
b) Histology
c) Otology
d) Etiology
View Answer
Explanation: Etiology is the study of the origination of something. In medicine, various factors are considered to find the cause of the disease. The disease is said to be idiopathic when no etiology is confirmed.
5. ________ curve is used to measure the incubation period.
a) Etiologic
b) Progressive
c) Epidemic
d) Discrete
View Answer
Explanation: An epidemic or an “epi” curve can be used to predict the incubation time of an organism. The time trend, irregularities, mode of spread etc. can be predicted from this curve.
Sanfoundry Global Education & Learning Series – Food Microbiology and Contamination.
To practice all areas of Food Microbiology and Contamination, here is complete set of Multiple Choice Questions and Answers.
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