The table compares some features of a bacterium and a virus. A tick means the feature is present.
| Feature | Bacterium | Virus |
|---|---|---|
| Cell surface membrane | present | absent |
| Cytoplasm | present | absent |
| Ribosomes | present | absent |
| Genetic material | present | present |
| Capsid | absent | present |
Using the table, state two features that a virus has.
[2]
A drug stops protein synthesis by binding to bacterial ribosomes. Explain why this drug has no effect on a virus.
[2]