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The state of balance in the internal environment of the body it includes control of the water balance of the blood, body temperature, blood sugar level and blood urea level. Each of these internal factors is maintained by a separate mechanisms the central nervous system and the endocrine system. Before these systems can bring about any change they have to be supplied with information regarding the body state. Living cells and all the chemical reactions are controlled by enzymes; the enzymes are very sensitive to the conditions in which they work (PH). A slight fall in temperature or a rise in acidity may slow down or stop an enzyme from working and thus prevent an important reaction from taking place in the cell.
Cell membrane controls the substances which enter and leave the cell, but it is the tissue fluid which supplies or removes these substances, and it is therefore important to keep the composition of the tissue fluid as steady as possible. If the tissue fluid were too concentrated, it would withdraw water from the cells by osmosis and the body would be dehydrated. If the tissue fluid were too dilute, the cells would take up too much water from it by osmosis and the tissues would become waterlogged and swollen.
Linolenic Acids Fats in this group contain substantial amounts of linolenic acid (C18 triunsaturated). Examples are soybean, mustard, rapeseed, flaxseed and wheat germ hemps
Computed Tomograpy Scan Developments in cross-sectional imaging techniques such as spiral tomography and reformatted computerized tomograms have become increasingly popular in
How are the main classes of arthropods classified according to the presence of larval stage in their embryonic development? In crustaceans there are species with direct and oth
What is Genetic Recombination and Evolution ? Variation among the offspring of living organisms results from genetic recombination through sexual reproduction and mutation. Va
Diabetic foot are impaired blood supply to foot Diabetic foot are impaired blood supply to foot i.e. vasculopathy. This leads to ischaemia which in turn leads to delayed or non
how does a plasma membrane regulate movement of molecules into and out of a cell? is it polarity, integrity, permeability, or solubility? these are my choices
Neural Circuits The simple all are none activities of a single neuron can hardly provide the adaptability needed for the constant changes faced by the organism in its internal
Regression of Primitive Streak As the inward migration of cells by the primitive streak ends progressively along its anterior to posterior regions the streak slowly regre
While studying evolution, a student comes across a cladogram that includes clades like amphibia, reptilia, aves, and mammalia. What must be the basal clade?
What is an example of a parasite relationship? An example would be a flea and a dog. The flea drinks the dog's blood, but does nothing helpful for the dog.
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