CAIE A-Level Biology AS 10.2.2 Why Antibiotics Dont Affect Viruses Questions
Explain why antibiotics do not affect viruses using evidence from each question and mark scheme.
- Syllabus
- 2028–2030
- Course
- Biology 9700
- Level
- AS
Explain why antibiotics do not affect viruses using evidence from each question and mark scheme.
Tuberculosis (TB), influenza and polio are examples of infectious diseases.
Polio is a serious viral disease affecting young children. In 1996, polio caused paralysis in more than 75000 children across Africa. A long-term vaccination programme allowed the World Health Organization (WHO) to declare that Africa was largely free of polio in 2020.
Antibiotics, such as penicillin, do not help to prevent the spread of viral diseases, such as polio.
Explain why penicillin is not effective against viruses.
any one from:
penicillin only acts on, bacteria / prokaryotes ;
virus does not have, cell walls / murein / peptidoglycan ;
virus does not have, transpeptidases / the enzyme that is, inhibited / acted on, by penicillin ;
virus does not grow / penicillin (only) acts on growing cells / AW ;
A when cell wall is, growing (larger) for growing cells
virus does not have cellular structure / virus is acellular ;