Multiple choice questions XXVII — task. Science CBSE, Class 9.

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1. How does penicillin work to kill bacteria?

Penicillin makes holes in the cell membrane
Penicillin prevents cell wall formation
Penicillin interferes with the bacterial metabolism
Penicillin inhibits protein synthesis

2. Which of the following is the literal meaning of disease?

Being happy
Being uncomfortable
Being uncomplicated
Being unaware

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