Bacteria / virus

Question 1

bacteria - structure

Answer 1

• have plasmids small rings of DNA that carry genes
• contain pili - help stick bacteria to each other or a surface
• have mesasomes - folded area of the plasma membrane where respiration occurs
• smallest cellular organisms

Question 2

Virus - structure

Answer 2

• has a nucleic acid core and a protein coat
• only replicate inside a host cell and are inactive outside a cell - virons
• non-cellular cell