Virus
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A series of free Science Lessons for 7th Grade and 8th Grade, KS3 and Checkpoint Science in preparation for GCSE and IGCSE Science.
Viruses
Viruses are many times smaller than bacteria. They are among the smallest organisms known and consist of a fragment of genetic material inside a protective protein coat.
Viruses can only reproduce inside host cells and they damage the cell when they do this. A virus can get inside a cell and, once there, take over and make hundreds of thousands of copies of itself. Eventually the virus copies fill the whole host cell and burst it open. The viruses are then passed out in the bloodstream, the airways, or by other routes.
Diseases caused by viruses include: influenza (flu), colds, measles, mumps, rubella, chicken pox, and can lead to the development of AIDs.
How A Virus Invades Your Body?
How a virus can trick a single cell into making a million more viruses?
Viruses vs. Bacteria - What's The Difference?
More Science Lessons (KS3)
Math Worksheets
A series of free Science Lessons for 7th Grade and 8th Grade, KS3 and Checkpoint Science in preparation for GCSE and IGCSE Science.
Viruses
Viruses are many times smaller than bacteria. They are among the smallest organisms known and consist of a fragment of genetic material inside a protective protein coat.
Viruses can only reproduce inside host cells and they damage the cell when they do this. A virus can get inside a cell and, once there, take over and make hundreds of thousands of copies of itself. Eventually the virus copies fill the whole host cell and burst it open. The viruses are then passed out in the bloodstream, the airways, or by other routes.
Diseases caused by viruses include: influenza (flu), colds, measles, mumps, rubella, chicken pox, and can lead to the development of AIDs.
How A Virus Invades Your Body?
How a virus can trick a single cell into making a million more viruses?
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