Atoms are made of the same three basic particles: protons, neutrons, and electrons.

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In presence of insulin, 

GSK3 becomes phosphorylated by PKB its catalytic activity is inhibited

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Insulin stimulated activation of PKB promotes rapid activation of glycogen synthase and glycogen synthesis

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Mating pathway in the yeast S. cerevisiae, is a MAP kinase cascade which linked to GPCRs.

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Two mating types of yeast cells are: 

1. a 

2. α

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Haploid yeast cells secrete protein signals known as pheromones, which induce mating between opposite mating types.

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An a haploid cell secretes the a mating factor and has GPCRs for the α factor on its cell surface; an α cell secretes the α factor and has GPCRs for the a factor.