A2.3 Viruses Flashcards
1
Q
What is a virus?
A
A non-cellular parasite of animals, plants and bacteria that consists of nucleic acid surrounded by a protein coat (a capsid)
2
Q
What is a parasite?
A
An organism that lives on or in another organism (its host), deriving nutrients from its host
3
Q
What are the common features of viruses?
A
They are extremely small; They have nucleic acid (DNA or RNA) as genetic material; A capsid made of protein surrounds the nucleic acid; No cytoplasm; Few or no enzymes.
4
Q
A
