Question

Difference between viruses
and bacteria

Answer 1

Difference between viruses and bacteria:

Viruses:

• Very small in size and visible only by electron microscope.
• Have no metabolism.
• Take no food by any method.
• Do not grow and do not divide.
• Can be crystallized.
• Command the host cell to produce virus.
• All produce diseases in man, animals or plants.

Bacteria:

• Large and can be seen by light microscope.
• Single celled.
• Have metabolism.
• Take food by absorption.
• Grow in size and divide to produce more bacteria.
• Cannot be crystallized.
• Self reproduce.
• Some harmless, some useful and some disease-causing.