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Explain Starch - Tests for the Presence of Exoenzymatic Activity?
Starch is a polymer of glucose linked together by glycosidic bonds. Microorganisms produce hydrolytic enzyme amylase which degrade starch into short polysaccharide units - dextrins and ultimately into disaccharide maltose. Maltose is finally hydrolyzed to soluble glucose molecules by enzyme maltase. Glucose is transported into the cell and is involved in cellular processes.
For observing hydrolytic activity of these exoenzymes, starch agar is used. Detection of starch hydrolysis after growth is made by observing for the presence or absence of starch using iodine. Iodine imparts blue black colour to the medium, if starch is present. Hydrolysis of starch is demonstrated by a clear zone surrounding the growth of the organism. This is a positive reaction.
Under the limiting oxygen conditions experienced in by vigorous exercise, the configuration of NADH by glycolysis exceeds the ability of the respiratory chain to oxidize it back to
Illustrate the Respiratory System In general, respiration and breathing are understood to be same. But it is not so. Breathing simply means taking in oxygen from air and giving
Q. What is Aortic stenosis? Left Ventricular outflow tract obstruction can occur due to various aortic valvular, subvalvular and supra valvular lesions. Valvular Aortic Ste
The pH of a solution of 1 M HCl is: Select one: a. 0 b. 0.1 c. 1 d. 10 e. negative 1
components of human skeleton
Phylum Coelentrat a : (9,000 'species) The body is radial and made up of two cell layers. Gastro-Vascular cavity is saclike, tentacles and stinging cells are present. They may
Determine the appearance of a plant cell when water is plentiful? When water is plentiful, the central vacuole expands. The other organelles are pushed against the plasma me
Leaving the deserts as you approach the tropical regions of the earth you will enter the savanna biome, which is a combination of grassland with scattered or clumped trees. These s
Q. What are the analyses provided by the study of human age pyramids? The study of human age pyramids able to provide the following analyses, proportion of individuals at an ec
When the Balance Sheet column totals don't agree on the first attempt work backward through the process used in preparing the work sheet exclusively take the following steps until
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