Virus :
1. Virus does not have cellular structure.
2. Virus does not have cytoplasm and cell organelles.
3. Virus can be observed only through electro microscope.
4.Viruses are smaller than bacteria.
5.Virus may have DNA or RNA as its genetic material.
6. There is covering of protein around the viral cell.
7. Viruses cannot be killed by antibiotics.
8. All the types of viruses are harmful.
Bacteria :
1. Bacteria have cellular structure.
2. Bacteria have cytoplasm, cell membrane and free chromosomes.
3. Bacteria can be observed under a compound microscope.
4. Bacterial DNA and RNA both are present in bacterial cells.
5. Bacteria are larger than viruses.
6. There is covering of cell wall around the bacterial cell.
7. Bacteria can be killed by a specific antibiotic.
8. All bacteri are not harmful.
Some of them are useful too.
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