The diagram shows a virus - Leaving Cert Biology - Question b - 2016
Question b
The diagram shows a virus.
(i) Name the parts labelled A and B.
(ii) Name two diseases in humans caused by viruses.
(iii) Suggest two methods of transmission of v... show full transcript
Worked Solution & Example Answer:The diagram shows a virus - Leaving Cert Biology - Question b - 2016
Step 1
Name the parts labelled A and B.
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Answer
Part A is the protein coat, and part B is the nucleic acid or DNA/RNA.
Step 2
Name two diseases in humans caused by viruses.
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Answer
Two diseases caused by viruses in humans are Influenza and AIDS.
Step 3
Suggest two methods of transmission of viruses.
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Viruses can be transmitted through:
Contact with infected surfaces or bodily fluids.
Water or air transmission, such as through respiratory droplets.
Step 4
Why are viruses called obligate parasites?
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Viruses are referred to as obligate parasites because they can only replicate within a living cell or host.
Step 5
What is a vaccine?
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A vaccine is a substance that contains a non-disease-causing dose of a pathogen or part of it, which triggers the immune response.
Step 6
Suggest a reason for this.
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Antibiotics are not effective against viruses, so they typically do not have any effect on viral infections.
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