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Explain Acidic Stains (anionic) - Types of Stains?
These are sodium, potassium, calcium or ammonium salts of coloured acids, which on ionization give negatively charged chromogen. These are best under acidic conditions. Most acidic dyes are unable to bind to the cell surface and also not able to penetrate into the cell because of repulsion by cell surface. These possess negatively charged groups, like, carboxyl (- COOH), phenolic, hydroxyl (-OH) so have a strong affinity to positively charged cell structure and macromolecules, like proteins. Example: Eosin, Picric Acid, Rose Bengal, Acid Fuchsin etc.
What is a characteristic feature of a carrier protein in a plasma membrane? Carrier proteins are globular proteins which are particular it their action and therefore regulate t
A large number of integral proteins in eukaryotes do not traverse the membrane but are anchored in one or other leaflet of the bilayer through covalent attachment to a hydrocarbon
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Explain Dehydration Dehydration is one of the ancient food processing techniques. Dehydration means to completely remove water under controlled conditions, in such a way
Q. After the neurula stage and from its ventral portion to the dorsal how can the morphology of the embryo be described? In a schematic longitudinal section of the embryo after
Define Procedure for Detection of Number of Bacteria in Milk? 1. Place a clean, non-greasy slide over the graph paper. 2. Spread 0.01 ml of the milk over an area of 1 cm2 as
Prophylaxis Many experts recommend that sexually assaulted adults and adolescents be given treatment to prevent sexually transmitted infections, including therapy for gonorrhea
Q. What is meant by "mutualist exploration of cellulose digestion", a phenomenon that occurs in some mammals and insects? Herbivorous animals eat great amounts of cellulose a s
What is meant by "post-translational modification"? Give examples of post-translational modifications of the following amino acids: a. Serine b. Lysine C. Choose a third amino acid
Class of Subphylum Uniramia - Symphyla Symphyla is yet other small myriapodous group that includes around 160 described species. These are also soil living forms and live in l
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