1.2.f Outline the key features of viruses as non-cellular structures (limited to protein coat and DNA/RNA).
You may have heard about various viruses including:
- H1N1 Swine Flu,
- H5N1, Bird Flu, and more recently
- Coronavirus (STAY HOME AND STAY SAFE YOU GUYS!) .
So let's take a look at what viruses are, as well as their structures:
- Unlike prokaryotes and eukaryotes, viruses do not have a cell structure.
- They do not have a cell surface membrane.
- Viruses are also very small (about 20–300nm)
- They simply consist:
- DNA or RNA for replication
- A protein coat called a capsid
Jones, M., & Parkin, M. (2018). Cambridge International AS and A level biology. Cambridge: Cambridge University Press.