Next Generation: MS.LS1.1 NGSS


Author: Nathan Lampson
This lesson will introduce viruses and explain how they are similar and different to Prokaryotic and Eukaryotic Cells
See More
Try a College Course Free

Sophia’s self-paced online courses are a great way to save time and money as you earn credits eligible for transfer to over 2,000 colleges and universities.*

Begin Free Trial
No credit card required

27 Sophia partners guarantee credit transfer.

245 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 21 of Sophia’s online courses. More than 2,000 colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.




A virus is an infectious particle that is not living and can only function inside a living cell. Most viruses are too small to be viewed with a compound light microscope and must be viewed with an electron microscope.

Similarities to Prokaryotic and Eukaryotic Cells

Viruses contain nucleic acid (either DNA or RNA) much like prokaryotes and eukaryotes, however, viruses need a host cell in order to proliferate.

Differences from Prokaryotic and Eukaryotic Cells

Viruses are unable to reproduce independently. 

Examples of diseases caused by viruses:





Source: Concepts in Biology Twelfth Edition Eldon Enger, et al.


This audio will introduce viruses.