Viruses

Question 1

What sets viruses apart ?

Answer 1

-do not have cell structure.
-no partially permeable membrane containing cytoplasm.

Question 2

What do viruses consist of ?

Answer 2

-self replicating molecule of DNA or RNA (genetic code)
-protective protein coat (capsid ->made up of capsomeres)
-some ->phopholipid envelope with projecting proteins.

Question 3

What is the measurement of a virus ?

Answer 3

-20 to 300nm.

Question 4

What does parasitic mean ?

Answer 4

-ONLY reproduce by infecting and taking over living cells (takes over the protein synthesising machinery of the host cell).