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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 Acute MR Murmur in heart dieases? MR due to ruptured papillary muscle, ruptured chordae tendinae, or due to Infective Endocarditis/Myocardial infarction. Characteri
List the advantages and disadvantages of stage 2 surgery using a tissue punch. Advantages - Less traumatic to surrounding tissue - Faster progress to the impression proce
Transport in Phloem The basic necessities of plants, water, are taken up by the roots. Another purpose served by the roots is to absorb water soluble mineral nutrients from th
How is digestion performed in protozoans? Digestion in protozoans is intracellular digestion: organic material is internalized and degraded inside the cell. Protozoans get
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Q. Etiological factor of malabsorption syndrome? The causes cited for malabsorption can be associated with a number of diseases. Many of these diseases you may not know presen
Following are the functions of Insulin: 1) Insulin controls the level of the sugar (glucose) in the blood. 2) Insulin permits cells to use sugar (glucose) for energy. Cells c
Define Active or moderately active Lifestyles - physical activity? These people have occupations that p-e not strenuous in terms of energy demands, but involve more energy expe
Define about the Paper electrophoresis? In paper electrophoresis the sample is applied to a point on a strip of filter paper or cellulose acetate moistened with buffer solution
Where does hematopoiesis occur? Hematopoiesis happens in the bone marrow (mainly within flat bones), where erythrocytes, leukocytes and platelets are made, and in the lymphoid
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