Explain procedure for test of presence of coliform bacteria, Biology

Assignment Help:

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.


Related Discussions:- Explain procedure for test of presence of coliform bacteria

Define diet for treatment for protein energy malnutrition, Define Diet for ...

Define Diet for Treatment for Protein Energy Malnutrition? Treatment of cases of kwashiorkor or marasmus involves mainly providing appropriate nutrition support. The child shou

Objective of the law of contract, The law of contract is that the branch of...

The law of contract is that the branch of law which determines the circumstances in which promises made by the parities to a contract shall be legally binding on them. Its rules de

Energy storage, Energy Storage As we said above, food intake and ener...

Energy Storage As we said above, food intake and energy expenditure for animals is approximately equal. If energy expenditure exceeds food intake, then the excess energy is t

Find the net charge of the predominant form asp, Determine the net charge o...

Determine the net charge of the predominant form Asp at (a) pH 1.0, (b) pH 3.0, (c) pH 6.0, and (d) pH 11.0?

Offspring, #q1. If offspring exhibit a 3:1 phenotypic ratio, what are the g...

#q1. If offspring exhibit a 3:1 phenotypic ratio, what are the genotypes of a parent?uestion..

Which substance does not contain hormones , Hormones are composed from seve...

Hormones are composed from several classes of molecules. As far as our present knowledge extends, hormones are not found in which of the subsequent categories of substances: a)

Cellular Respiration, what two gases are released by animals during the pro...

what two gases are released by animals during the process of cellular respiration

Soils of tropical and temperate forests, Soils of Tropical and Temperate Fo...

Soils of Tropical and Temperate Forests Although soils of tropical forests are generally poor in nutrients they are able to maintain high productivity under natural conditions

Assignment of botany, habitat, habit, cell wall chemistry, reason why cell ...

habitat, habit, cell wall chemistry, reason why cell wall like this of Archaebacteria , eubacteria,fungi,algae,bryophytes ,pteridophyes, gymnosperms , angiosperms..

Can the heat capacity of water be taken small or large, Q. Can the heat cap...

Q. Can the heat capacity of water be taken small or large ? What is the biological importance of that characteristic? Ans. From Thermology it is define that the quantit

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd