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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.
Q. How do chordates reproduce? Reproduction in beings of the phylum Chordata is sexual, with the exception of urochordates that can be also reproduce asexually. In some classes
Mylohyoid muscle Surgical manipulation at the crest of a severely resorbed ridge may injure the mylohyoid muscle. Manipulation of the tissues of the floor of the mouth for plac
Concerning the sex chromosomes of the XY system which type of gamete do the male and the female individuals respectively produce? The individual of the male sex is XY so he for
In the eukaryotes, the transmit RNA genes exist as multiple copies and are transcribed by RNA polymerase III or RNA Pol III. As in prokaryotes, various tRNAs may be transcribed tog
Xylem transfer cells The lateral transport of ions from root xylem to leaves probably takes place via xylem transfer cells which have two special features: The ce
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ELECTROCONVULSIVE THERAPY: 1) ConceptlMeaning of Electroconvulsive Therapy (ECT) Electroconvulsive Therapy (ECT) is a painless form of electric therapy. It is called as ph
Oligomeric enzymes Oligomeric proteins consist of two or more polypeptide chains, which are usually linked to each other by non-covalent interactions and never by peptide bonds
Describe Arteriovenous Continuous Murmur? Arteriovenous Continuous Murmur : These can be congenital as in coronary artery fistula entering RA/RV/PA, sinus of valsalva to rig
Q. Which are the most important inorganic molecular substances for living beings? Ans. The most important inorganic substances for living beings are mineral salts, water,
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