More Science Worksheets
A series of free Science Lessons for 7th Grade and 8th Grade, KS3 and Checkpoint Science in preparation for GCSE and IGCSE Science.
Antibiotics can be used to cure bacterial diseases by killing bacteria inside the body. Antibiotics cannot be used to kill viruses because viruses live and produce inside cells.
Specific bacteria must be killed by specific antibiotics. If we use antibiotics when they are not needed (eg. viral diseases) or if we use an incorrect antibiotic, we can increase the level of antibiotic resistance. This means that antibiotics may not work in the future.
How Alexander Fleming Accidentally Discovered Penicillin?
How penicillin and antibiotics work?
Penicillin kills bacteria by interfering with the production of cell wall. When these bacteria (called E. coli) grow in size, the weakened cell wall ruptures.
Try the free Mathway calculator and
problem solver below to practice various math topics. Try the given examples, or type in your own
problem and check your answer with the step-by-step explanations.
We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page.