ANIMAL PHYSIOLOGY
CHEMICAL SIGNALS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Ca 2+
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protein kinase
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cAMP
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G-protein coupled receptor
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Detailed explanation-1: -Examples of second messenger molecules include cyclic AMP, cyclic GMP, inositol triphosphate, diacylglycerol, and calcium.
Detailed explanation-2: -(A) cAMP is the archetypical second messenger. Its levels increase rapidly following receptor-mediated activation of adenylyl cyclase (AC), which catalyzes the conversion of adenosine monophosphate (AMP) to cAMP.
Detailed explanation-3: -Cylic AMP (cAMP) is a water-soluble second messenger found in eukaryotic and prokaryotic cells. The intracellular concentrations of cyclic AMP are approximately 0.1-1.0 M, increasing 20-fold within seconds of activation.
Detailed explanation-4: -Cyclic adenosine monophosphate (cAMP) is a second messenger used for intracellular signal induction. It is synthesized from adenosine triphosphate (ATP) by enzymes (g-proteins) that are attached to metabotropic receptors and become released when the receptor is activated.