Explain the composition of macconkey agar, Biology

Assignment Help:

Explain the Composition of MacConkey Agar?

Bactopeptone - 17.0 gm

Protease Peptone - 3.0 gm

Lactose - 10.0 gm

Bile salt mixture - 1.5 gm

Sodium chloride - 5.0 gm

Agar - 13.5 gm

Neutral Red - 0.03 gm

Crystal Violet - 0.001 gm

Distilled water - 1000 ml

pH - 7.1

MacConkey Agar is a specialized media used for selection and differentiation among different bacterial species. It contains crystal violet, which inhibits the growth of gram positive but permits gram negative to grow (selection).  Presence of lactose, bile salts and neutral red in medium allows differentiation of bacteria on basis of their ability to ferment lactose. This medium is used to differentiate members of Enterobacteriaceae, which are morphologically and biochemically related into 2 groups.


Related Discussions:- Explain the composition of macconkey agar

Study of food texture, Q. Study of food texture? We learnt earlier that...

Q. Study of food texture? We learnt earlier that texture is observed in terms of tactile sensations i.e. finger feel and mouth feel. Finger feel is sensed before ingestion, by

What are the typical vegetation, What are the typical vegetation and the ty...

What are the typical vegetation and the typical fauna of the tundra? Tundra has vegetation formed mainly by mosses and lichens. In the fauna the densely furred animals, like ca

Bergmann's method of cell plating, Bergmann's Method of Cell Plating I...

Bergmann's Method of Cell Plating In this method free cells are suspended in a liquid medium at a density twice the finally desired plating density. Melted agar containing med

Food and diet, state one benefit of including vegetable fibre in the diet

state one benefit of including vegetable fibre in the diet

How does the excretory system of nematodes work, Q How does the excretory s...

Q How does the excretory system of nematodes work? The metabolic residuals of nematodes are together by two longitudinal lateral excretory channels that open in one single excr

What is ecology?, What is Ecology? The Ecology is the field of Biology ...

What is Ecology? The Ecology is the field of Biology that studies the relationship between living beings and between living beings and the environment.

Explain elastic fibers would not wrinkle, As we age, our skin wrinkles due ...

As we age, our skin wrinkles due to change in collagen and elastic fibers in the dermis and a decrease in their production. Explain why topical application of collagen and elastic

What is mitral valve and coronary arteries, Q. What is Mitral Valve and Cor...

Q. What is Mitral Valve and Coronary Arteries? On the PA view, mitral valve calcification is seen just to the left of the spine, below the position of the aortic valve. The lar

Duck septicemia (duck pasteurellosis/new duck disease), D uck septicemia (...

D uck septicemia (duck pasteurellosis/new duck disease) The disease is caused by Pasteruella anatipestifer (Syn. Riemerella anatipestifer ) that mostly affects growing duck

Explain what position of patient will during jvp examination, Explain what ...

Explain what Position of Patient will be During JVP Examination ? Position of Patient During JVP Examination: The patient is propped up to 45"on a back rest or pillow as in thi

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