Concept explainers
If the envelope of a particular virus were unstable outside the host’s body, which of the following statements would you expect to be true concerning this virus?
- a. It would be a dsRNA virus.
- b. It would be transmitted by intimate contact.
- c. Touching a doorknob would easily transmit it.
- d. That virus would eventually cease to be a threat to the population.
Introduction:
The viral envelop is derived from the outer membrane of the virus body and it confers the sensitivity of the virus against detergent, heat, dryness, and alcohol. Virus without envelop is more resistant against harsh condition as compared to the enveloped virus.
Answer to Problem 1MC
Correct answer:
Virus which contains an unstable envelope outside the host’s body is transmitted by intimate contact. Therefore, option (b) is correct.
Option (b) is given as “it would be transmitted by intimate contact”.
Explanation of Solution
Justify reason for the correct statement:
Enveloped viruses have protein capsid and lipid bilayer which make them more sensitive towards environment condition. Thus, they need an intimate contact such as body fluid between their hosts in order to get transmitted.
Hence, option (b) is correct.
Justify reasons for the incorrect statements:
Option (a) is given as “It would be a
Most of the
Option (c) is given as “Touching a doorknob would easily transmit it”.
Enveloped virus can only get transmitted by an intimate contact between the hosts. Hence, it is a wrong answer.
Option (d) is given as “That virus would eventually cease to be a threat to the population”
Naked virus such as Variola virus is more contagious and thus, they would cease to be a threat to the population. Hence, it is a wrong answer.
Hence, options (a), (c) and (d) are incorrect.
Enveloped virus are more sensitive against the environmental condition, hence they need an intimate contact between their hosts for transmission.
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Chapter 24 Solutions
Microbiology with Diseases by Taxonomy (5th Edition)
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