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Denitrification - Nutrient Cycles
Nitrates are readily leached from the soil and also lost through denitrification the process by which molecular or gaseous nitrogen (N2) as well as nitrous oxide (NO) 'and nitric oxide (N2O) and nitrogen dioxide (NO2) are formed from NO-3 by bacteria (such as pseudomonas) and fungi. They use the nitrate as a source of oxygen in the presence of glucose and phosphate. Denitrifing bacteria prefer anaerobic or partially aerobic habitats such as estuaries, bogs, lake bottoms and water-logged soils. The bacteria reduce the nitrates to nitrites which are finally converted to free nitrogen.
What is mucoperiosteal flap Silk is easy to handle, ties with a slip knot, and is relatively inexpensive compared with other nonabsorbable suture materials currently available.
Explain the Position of the endospore? Endospore cannot be stained by ordinary methods such as simple staining and gram staining because these dyes do not penetrate the wall of
Two homologous human chromosomes have the following structure: --A--B-.-C--D--E--F--G--H--I--J-- --A--D--C-.-B--E--F--G--J--I--H-- where the letters represent genetic markers and t
Plot the data as a suitable graph. Join the points with the best-fitting smooth curve.Temperature oC(5,10,11,13,17,19) Time taken for eggs to hatch/h 230 90 70 30 25
What has caused evolution? 1) Different individuals have dissimilar characteristics 2) These differences result in altering abilities to reproduce under local circumstances
Measurements of the level of pollution There are many factor for finding the level of pollution in the waste waters that generally find out the quantity of organic matter susp
Select all that are true: Plants do not have mitochondria, they have chloroplasts to convert the sun's energy into chemical energy via photosynthesis and do not need to make ATP us
Regeneration Leading To Asexual Reproduction Regeneration is described as the replacement of the lost parts of the body of an organism. This capacity is present in approximat
In about 80 per cent of ARF patients, ASO titre is significantly raised. ASO titres vary with age, geographical area and other fevers, which influence frequency of streptococcal in
Define Pipette - Nutritional Biochemistry? Pipettes are used to deliver a known volume of liquid from one container to another. They are precision instruments of measurement an
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