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Illustrate in detail about the Cell theory
All living organisms are composed of cells, and they are the basic structural and functional units of life, just like the atom is a fundamental unit in all chemical structures. This concept forms the basis for the "cell theory" proposed by M.J. Scllleiden and T. Schwann in 1838-34. They concluded that all plants and animals are composed of individual cells. The same concept is also applicable to microorganisms. Some organisms, e.g., the bacteria and protozoa are unicellular, while others are multicellular organisms, like fungi, plants and animals. Fungi are composed of individual cells of similar structure, while plants and animals are made up of different types of cells. Cells in all living organisms, whether unicellular or multicellular, show several common structural features, and many events in them are carried out in a similar fashion.
The marine biomes consist of the earth's oceans and its associated areas like the shorelines, islands, reefs and estuaries. The marine waters contain about 3.5 percent salt, mostly
Characteristic features of Phylum Cnidaria All are aquatic animals. Radial or biradial symmetry around an oro-aboral axis, but no head. Diploblastic, with an epidermi
Evolutionary relationship among various animal groups is depicted in the cladogram given below. P, Q and R respectively shown: a. Vertebrae, hair and four limbs. b. B
Drug Intolerance For patients who cannot tolerate rifampin, alternative regimens include 9-12 months of isoniazid, ethambutol and pyrazinamide, with or without a fluoroquinolo
Endosperm with Lateral Haustoria In Monochoria, in which the endosperm development is of helobial type, the haustorium is neither chalazal nor micropylar but lateral. The cha
Define Changes in Food due to Concentration Process? Obviously concentration that exposes food to 100°C or higher temperatures for prolonged periods can cause major changes in
What is Placoid scale? Elaborate in detail. Scales characteristic of cartilaginous fish. Formed from the dermis, scale is anchored in that layer by a basal plate composed of de
What are the types of proteins in metabolism of lens? Soluble Proteins Its synthesis takes place in the equatorial part on the surface of lens. a. Alpha crystallins
Define Barrier layer cells (photocells) They are the very simple of the detectors. It contains the bottom support layer of conductive metal like iron. A photosensitive layer of
Define Polyacrylamide gel electrophoresis (PAGE)? Acrylamide gel has the advantage over starch in that it is easier to prepare and is more inert, the pore size can be varied in
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