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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.
Q. How is reproduction done in beings of the class Reptilia? These beings reproduce sexually through internal fecundation by means of copulation between female and male individ
Describe MS Murmur in Diastolic Murmurs briefly? Characteristic: Low pitched, rumbling and diastolic murmur, loudest at apex with patient in left lateral decubitus, with pre
Tracheal Gills - Respiration In many species of aquatic insects the air in the trachae is replenished by diffusion of oxygen via tracheal gills. Many aquatic insects carry a t
Centrioles Centrioles is also called cell centre . Centrosome discovered by Benden . T. Boveri called it centrosome. Centrosome is present in all animal eukaryotic
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Q. Polyunsaturated Fatty Acids required for dyslipidemia? These are also liquid at room temperature. There are two main types of dietary PUFA's of significance: a) linol
What are twins? Genetically what are the two types of twins that can be generated? Twins are simultaneously generated (within the mother's uterus) offspring. Twins classify acc
Myasthenia Gravis Myasthenia gravis (severe muscle weakness) is characterised by muscular fatigue in the wake of very little exercise. It may be apparent after a short period o
What is Brown Algae ? Phaeophyta are commonly known as brown algae; precisely because they are - guess what? - brown in color! They are brown because they contain brown colored
Corticosteroid Anti-inflammatory and immuno suppressive. Route: Oral, parental, dose as prescribed. Side-effects: sodium and fluid retention, potassium and ca
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