Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Explain the Turbidity Measurement?
Presence of sufficient number of microbes makes the liquid medium turbid. Turbidity also increases with the multiplication of microbes. Estimation of turbidity can be used both for the quantitation of microbes and monitoring microbial growth. The technique depends on the fact that cells scatter the light striking them and the amount of scattering is directly proportional to the biomass of cells present and indirectly to the cell number. The scattering of light can be measured by spectrophotometer or photometer. In the instrument, a beam of light is passed through a cell suspension and the amount of unscattered light is detected by a light sensitive detector. Photometer uses a simple filter to generate incident light whereas in spectrophotometer, prism is used instead of a filter. Commonly used wavelengths for bacteria are 540 nm, 600 nm and 660 nm. More the number of microbes in the suspension, less is the light reaching to the detector and read as percent transmission or absorbance (OD, optical density, a logarithmic expression).
Acetylcholine is the chemical released at neuromuscular junctions which binds to receptors on the surface of the plasma membrane of the muscle cells, creating an electrical impuls
Why is there little or no grass in the forest? 1. Because of the presence of the bushy trees close together in the forest, sunlight does not penetrate simply to the ground. Thi
Q. Derive Gorlin Formula? Formula I: First Hydraulic Formula (Toricelli's law) F = AVCc Where, F = flow rate A = orifice area Cc = coefficient of orifice cont
MENDEL'S EXPERIMENTAL PLANT Mendel selected common garden pea ( Pisum sativum ) for his experiments, because:- (i) The pea is small and annual plant. Duration of lif
How Gender affects the bmr? We have already emphasized earlier that sex difference in metabolic rates are primarily attributable to difference in body size and composition. Wom
Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4
BIOLOGY IN ANCIENT INDIA - L A T E STONE AGE [10,000 - 20, 000 B.C) Man first cultivated wheat, barley, lentils & peas. In India rice was first cultivated at Meherga
Q What is metabolism? Metabolism is the set of chemical and physical processes upon which the life of the cells of a living being depends.
Q. Prevention and cure of botulism involves? The prevention and cure of botulism involves: 1. Strict adherence to safe food-processing practices by the food industry 2.
Define Limitations for underwater weighing method? This method is expensive, time consuming and usually requires a lot of equipment and space. The subject needs to be
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd