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What is Quantitative Techniques?
Microbial quality of substances like food, milk, air, water, soil etc. can be assessed both qualitatively and quantitatively. Quantitative enumeration of microorganisms in a given sample can be accomplished in a laboratory by employing various methods, either by direct or indirect counts, each having its own advantages and disadvantages. No single method is always best. The most appropriate approach will depend on the experimental situation. These methods can also be used to measure microbial growth, determining growth rate and generation time. These methods devised for microbial quantitation either measure the cell numbers or determine the cell mass or cell constituents like DNA, protein, O2 uptake, carbon dioxide production, turbidometric measurement for increase in cell number, membrane filter count and the serial dilution agar plate method etc. Microbial populations are very large, therefore, most of the methods of counting are based on direct or indirect counting of a very small sample, achieved indirectly by a series of dilutions. Calculations then determine the size of total population.
Coordination of Digestion You have learnt that digestion is a process in which large food molecules arc broken down step by step into their constituents. In primitive metazoa
SEMEN - Sperms and secretion of accesory glands collectively known as seminal fluid or semen. It is milky, semi-solid in nature having particular smell. pH : 7.35 - 7.5. Spe
Organic Substances - Abiotic Components These include carbohydrates, proteins, lipids and their derivatives which are derived from the waste products of plants and animals or
Nursing Interventions of a Patient with Acute Alcohol: Intoxication and Withdrawal Some nurses find it very difficult to work with the alcoholics. This is particularly true w
Effects on Materials - Air pollutants Most air pollutants are reactive chemicals, so they react with most of the substances around. You may recall from your chemistry lessons
Define regulation of L-PK enzymes by starvation & refeeding? L-PK catalyzes the conversion of phosphoenolpyruvate to pyruvate and plays an important role in directing pyruvate
Equal Distribution of Hereditary Material: In mitosis the heredity material is equally distributed in the daughter cell. 2.No Change in Genetic Information: As there is no
Q. Is there respiratory pigment in the annelid blood? The blood in beings of the phylum Annelida contains the respiratory pigment hemoglobin the same found in chordates and oth
Q. Management of Constipation? You must have realized by now that proper dietary and lifestyle management can help in maintaining the normal bowel movements to a great extent.
Define Larval Stage of Taenia Cystcercus? The pork tapeworn (T: solium) and beef tapeworn (T : saginata , which are endoparasites of humans who are the final hosts
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