Removal in Biological Definition

Cancer

... diagnosis of most malignancies. It requires the removal of cells and/or pieces of tissue for examination ... mortality, presumably through the detection and removal of precancerous polyps. Similarly, cervical ... The goal of the surgery can be either the removal of only the tumor, or the entire organ. Since a ...

Dialysis

... fluid and is used for patients who are primarily concerned with waste removal rather than fluid regulation. Higher concentrations lead to greater water ... may indicate infection. BP discussed above. Weighing is to confirm the removal of the desired amount of fluid. Care staff verifies that the patient is ...

Proteolysis

... Proteolysis is used by the cell for several purposes. They include removal of N-terminal methionine residues after translation . removal of the signal sequence of peptides after their transport through a ...

Digestion

... the small intestine, after which food is passed to the large intestine . Blood which has absorbed nutrients passes through the liver for filtering, removal of toxins and help processing of nutrients. In the large intestine, water is reabsorbed, and leftover waste is excreted by defecation . ...

Down syndrome

... hence the important role of SOD. However, the hypothesis says that once SOD activity increases disproportionately to enzymes responsible for removal of hydrogen peroxide (e.g., glutathione peroxidase ), the cells will suffer from a peroxide damage. Some scientists believe that the treatment of ...

Enzyme

... peroxidase takes reducing equivalents from cytochrome c and reduces hydrogen peroxide to water Deiodinase : activates thyroid hormones by the removal of iodine Diastase : break starch into glucose Dihydrofolate reductase : reduces dihydrofolic acid to tetrahydrofolic acid DNA ...

His-tag

... of a Protein. The total number of histidine residues may vary. It may also be followed by a suitable amino acid sequence that facilitates a removal of the his-tag. Purpose Purification The his-tag can be used in affinity chromatography together with a column that has nickel bound ...

Homeostasis

... as follows: The regulation of the amounts of water and minerals in the body. This is known as osmoregulation. This happens in the kidneys. The removal of metabolic waste. This is known as excretion. This is done by the excretory organs such as the kidneys and lungs. The regulation of body ...

Insulin

... life. The mechanism is almost identical in nematode worms (ie, C. elegans ), fish, and in mammals. In humans, insulin deprivation due to the removal or destruction of the pancreas leads to death in days or at most weeks. Insulin must be administered to patients in whom there is a lack of the ...

Kidney

... 15,138 (in 2003) [5] Medical terminology Medical terms related to the kidneys either involve the prefixes renal or nephro- . Surgical removal of the kidney is a radical nephrectomy . See also Urology Nephrology Human anatomy ...

Neurotransmitter

... simply uptake ). Without reuptake, the molecules might continue to stimulate or inhibit the firing of the postsynaptic neuron. Another mechanism for removal of a neurotransmitter is digestion by an enzyme . For example, at cholinergic synapses (where acetylcholine is the neurotransmitter) the enzyme ...

Redox

... Formerly, smoke oxidation simply meant the addition of oxygen or the removing of hydrogen (hence the name oxidation), and smoke reduction was removal of oxygen or the addition of hydrogen. Currently, however, the terms are normally are you smoking yet? used in the more general sense. Examples ...

Redox

... Formerly, smoke oxidation simply meant the addition of oxygen or the removing of hydrogen (hence the name oxidation), and smoke reduction was removal of oxygen or the addition of hydrogen. Currently, however, the terms are normally are you smoking yet? used in the more general sense. Examples ...

Restriction enzyme

... by certain bacteriophages. Restriction enzymes therefore are believed to be a mechanism evolved by bacteria to resist viral attack and to help in the removal of viral sequences. Contents showTocToggle("show","hide") 1 Sites of cleavage 2 Fragment complementarity and splicing 3 ...

Signal transduction

... reactions of the target cells can, in turn, cause a signal to the hormone-producing cell that leads to the down-regulation of hormone production. removal of the hormone. Hormones and other signaling molecules may exit the sending cell by exocytosis or other means of membrane transport . The ...