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Signal transduction occurs when an extracellular signaling molecule activates a cell surface receptor. In words, this receptor change intracellular molecules changes a response. There are two levels in this procedure: the signaling molecule activates a particular receptor protein on the cell membrane. A 2nd messenger transfers the signal into the cell and eliciting a physiological response. In either level the signal can be amplified. Whereas, one signalling molecule can cause several responses. Gene activations and metabolism alterations are instances of cellular responses to extracellular stimulation which requires signal transduction.
Explain Food Sources of lron? lron is found in foods in one of the two forms i.e. haem or non-haem. In the human diet, the primary sources of haem iron are the haemoglobin and
Conventional amphotericin Amphotericin B deoxycholate (Fungizone, and others), the old non-lipid formulation of amphotericin, is by far the least expensive, but the developmen
What is the Procedure of Uristix 1. Collect the urine. 2. Remove one strip from bottle and replace cap. 3. Completely immerse reagent areas of the strip in urine and remo
Bacteria have a region known as a nucleoid, in which their genetic material is located. Why, then, are bacteria classify as prokaryotes? The nucleoid is not surrounded by a mem
Compare and contracte the phylum of ceolantrate
KARYOTHEC A OR NUCLEAR MEMBRANE It is also called Nucleolemma, term given by Erclab & Hertwig. Karyotheca composed of two unit membranes separated by a 150-300 A° wide p
Where in the cell can ribosomes be found? What is the main biological function of ribosomes? Ans) Ribosomes can be found free in the cytoplasm, adhered to the outer side of the
Nose Nose consists of external and internal parts. The inner lining of the nose contains millions of small receptors. These receptors are located on the sensory hairs.
Define Tests of Cardiovascular Endurance? Cardiovascular endurance or aerobic fitness is the ability to exercise continuously for extended periods without tiring. It can be me
Explain about the Sensory Neuropathy There is decreased sensory perception by foot for any external stimuli making foot prone to various injuries. Due to lack of pain does not
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