write about the procedure followed to observe the micro oraganism water list out the materials required and precautions to be followed while doing activity.
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Answers
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Explanation:
(i) Take a liter of water from a nearby body of water
(ii) Add approximately 5 mL of FAA to fix and preserve the organisms in the mixture each sample at the collection site
(iii) Transfer the water sample to a measuring cylinder in the laboratory. Each water sample should be labelled with the location where it was taken.
(iv) Do not disrupt the water samples for 48-72 hours.
(v) Remove the clean water and discard the concentrated sediment at the bottom.
(vi) Fill a vial or a tiny test tube halfway with the sediment. Label each one with a cork.
(vii) Transfer a few drops of sediment liquid from a vial into a watch glass using a dropper. If the sediment is extremely concentrated, dilute it with water.
(viii) Transfer a drop of water from the watch glass to the middle of a slide and mount it with the help of a dropper. Using blotting paper, absorb any surplus water.
(ix) Repeat the process with a few additional slides of each water sample.
(x) Examine each slide at two magnification levels: low magnification and high magnification.
Precautions
Do not taste any of the chemicals and materials you're working with.
If given permission, do not handle shattered glass with bare fingers, or use lab equipment without official approval, and conduct your own experiments