The diagram shows the structure of a type of virus - Leaving Cert Biology - Question c - 2016
Question c
The diagram shows the structure of a type of virus.
(i) Name the parts labelled A and B.
(ii) State two harmful effects of viruses.
(iii) What is meant by the ter... show full transcript
Worked Solution & Example Answer:The diagram shows the structure of a type of virus - Leaving Cert Biology - Question c - 2016
Step 1
Name the parts labelled A and B.
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Answer
A = nucleic acid (or DNA or RNA); B = protein coat.
Step 2
State two harmful effects of viruses.
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Answer
Viruses can cause diseases such as the flu and HIV/AIDS.
They can lead to severe health complications, including organ damage and neurological disorders.
Step 3
What is meant by the term immunity?
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Answer
Immunity refers to the body's ability to defend itself against pathogens and diseases.
Step 4
Outline two ways in which the skin provides immunity.
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Answer
The skin acts as a physical barrier, preventing pathogens from entering the body.
It secretes sweat and oils, which contain antimicrobial substances that help destroy invading microorganisms.
Step 5
What is meant by the term vaccination?
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Vaccination is the administration of a 'safe dose' of a pathogen to stimulate an immune response and provide immunity.
Step 6
Suggest a reason for this.
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Answer
Antibiotics are ineffective against viruses, as they target bacteria instead.
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