Lesson 4: The size of viruses
Viruses exhibit a wide range of sizes, and their dimensions can vary significantly depending on the type of virus. Generally, viruses are much smaller than typical cells and are measured…
Lesson 3: Laboratory cultivation of viruses
Viruses, unlike living organisms, cannot carry out metabolic processes or replicate on their own. They lack the necessary cellular machinery for growth and reproduction. As a result, viruses rely on…
Lesson 2: Living and non-living characteristics of viruses
Are Viruses Alive? The best analogy is that of a seed which under appropriate conditions, it becomes ‘‘alive’’ A virus differs in that it cannot reproduce unless it is in…
Lesson 1: General Characteristics of Viruses
General Characteristics of Viruses Viruses are unique entities that possess certain general characteristics distinct from living organisms. While they are not classified as living organisms due to their inability to…