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Explain Procedure for the test of Presence of Coliform Bacteria?
This test procedure is in continuation to the presumptive test procedure followed on last experiment. Now carry out this exercise following the steps enumerated herewith.
1. Label the EMB/Endo agar plates with the source of the water sample.
2. Streak the plates with the respective positive or doubtful presumptive broth culture using sterile inoculating loop.
3. Incubate all the culture plates in an inverted position for 24 hours at 37°C.
4. Observe the plates for the presence or absence of E.coli colonies.
Appearance of typical colonies with dark centres and metallic sheen indicates positive confirmed test, i.e., water is non potable.
What is the significance of Elastic capsule chromatophore? Specialized pigmented cells on surface of the cephalopods that, by changing their shape, expose differing amounts of
In studies of human body, which of the following terms will be used to explain the lack of voluntary control of urination or voiding of bladder? Is it a) Anuria b) Incontine
what is respiration
Analysis of the written reports of service in relation to the fitness, quality and efficiency of the service should be provided. The routine record-checking is always insuffic
Surface Run-off - Causes of Water Pollution The surface run-off from cultivated lands where inorganic fertilisers, pesticides, insecticides and rich manure are applied and sol
REASON S FOR GROWTH OF POPULATION - The human population explosion is mainly a result of reduced death rate. Main reasons for it are - 1 . Protection from natura
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How can we check BP without stethoscope In this case the procedure is same except you place your hand on radial pulse. You can read systolic pressure only by this method. -
Why would the O-H bond in C=O-H and the OH bonding with a water molecule be considered weak?
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