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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.
Systems of Human Body Many organs work in a coordinated'manner to form a system. For example in our-body the nose, the trachea and the lungs form the respiratory system. Table
Morphallaxis - Regeneration This kind of regeneration takes place in plants, sponges and coelenterates such as jelly fishes and hydra. The missing parts are replaced via reorg
State in brief about the Fungi It is heterotrophic plants, larger than the bacteria. Those that live on the dead tissues of organic substances are called saprophytic. They pla
Q. Relate the oxide layer and biocompatibility of titanium? The compatibility of a metal with its host environment depends on its resistance to biodegradation and on the degree
There has been a perfect coevolution between plants and herbivorous animals. This has often developed into a mutually beneficial relationship. Whereas the plants have proved to be
classes of phylum porifera
Haemocyanin - Respiratory Pigments This pigment is found in several arthropods and molluscs. Haemocyanins do not consist of haee groups. The metal they consist of is copper, w
Pantothenic acid (Calcium pantothenate) Calcium pantothenate is a white, loose, faintly hygroscopic powder without odour and of bitter taste. It is easily soluble in water, gly
Explain the Penicillium - Fungi? Classification Kingdom - Mycetae Division - Amastigomycota Class - Ascomycetes Subclass - Plectomycetidae Order - Eurotiales
Action potentials include changes in the membrane potential of an axon, as shown in the schematic below. During the refractory period, sodium channels are inactivated and
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