Bacteria / virus

Question 1

bacteria - structure

Answer 1

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

Question 2

Virus - structure

Answer 2

• has a nucleic acid core
• have a protein coat
• can only replicate inside of a host cell
• outside of a cell they are inactive
  - called virons
• non-cellular cell
  - doesn’t include cytoplasm / organelles /
  chromosomes