Q. How many types of calcium ion channels are present on ER membrane?

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Q. Ryanodine is a _______________

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Q. Which receptors open up during the calcium-induced calcium release?

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Q. Which ions activate cyclin-dependent kinases, following fertilization?

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Q. Which of the following is a calcium-binding protein?

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Q. Calmodulin has low affinity for _____________

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Q. Which of the following does not converge to activate the same signaling pathway?

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Q. Cyclic AMP can inhibit the growth of cells.

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Q. Activation of P13K in adherent epithelial cell promotes ___________________

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Q. CREB is a _____________________

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Q. Nitric oxide is an intracellular messenger.

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Q. Nitric oxide is formed from which of the amino acid?

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Q. Acetylcholine has the function of ________________________

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Q. The diffusible agent produced by binding of acetylcholine to endothelial cells is __________________

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Q. Binding of acetylcholine to outer surface of endothelial cells, signals _____________________

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Q. The nitric oxide binds to and stimulates guanylyl cyclase.

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Q. Which of the following compounds is metabolized into nitric oxide?

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Q. The development of Viagra is related to the discovery of nitric oxide as a ____________________

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Q. Viagra is specific for which isoform of cGMP phosphodiesterase?

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Q. The posttranslational modification involving nitric oxide is called __________________

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