MICROORGANISMSTYPES OF MICROORGANISMS

Variety of microorganisms

Viruses

Illnesses as result of viruses• In plants :

tobacco mosaic virus

Bacteria

Fungi

DETERMINE THE SIZE OF A MICROORGANISM• What is a micrograph ?

TO DETERMINE THE SIZE OF AMICROORGANISM

•How to calculate the size of a microorganism by using a scale bar

• Calculation of magnification and size by means of scale bar

• Measuring scale with ruler

• Measure section of object

• Actual size of object =

Measured Length of Object (mm) x Length on Scale Bar (μm)

measured length of scale beam (mm)