CH 15 MCAT

CH 15 MCAT - CH. 15 Cells receive which of the following...

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CH. 15 Cells receive which of the following signals? Light, sound, odorants, and hormones. Signals get to target cells in multicellular organisms via circulation and diffusion. A signal pathway is the series of events that occur in response to a signal’s being detected. In general, all cell signaling causes a change in receptor conformation. The major categories of signal receptors are transmembrane and cytoplasmic. Steroids bind to cytoplasmic receptors. Steroids typically affect gene transcription. Typically, large polar signals interact directly with transmembrane receptors. Insulin is a derivative of glucose. Some signal receptors are ion channels, protein kinases, G protein-linked, and DNA binding proteins. Different types of cells that respond to a certain signal do not necessarily respond in the same way because different types of cells may have different signal pathways for the same signal. Protein kinase is an enzyme that phosphorlates.
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CH 15 MCAT - CH. 15 Cells receive which of the following...

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