microorganisms - grey college, bloemfontein · virus bacteria dna viuses rna viruses enveloped...
Post on 19-Aug-2020
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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)
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