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Definitions and explanations of various types of cell signaling, including paracrine, autocrine, and hormonal signaling. It covers the concepts of local regulators, reception, transduction, and response, as well as the three main types of membrane receptors. Understanding these concepts is essential for students of biology and related fields.
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TERM 1
DEFINITION 1 Paracrine signaling is a form of cell signaling in which the target cell is near ("para" = near) the signal-releasing cell. TERM 2
DEFINITION 2 Autocrine signaling is a form of signaling in which a cell secretes a hormone or chemical messenger (called the autocrine agent) that binds to autocrine receptors on the same cell, leading to changes in the cells. TERM 3
DEFINITION 3 signals secreted into blood and transmitted throughout body TERM 4
DEFINITION 4
growth factors stimulate neighboring cells to continue to grow >nerve cells release neurotransmitters TERM 5
DEFINITION 5 Signaling molecule(s) outside cell interact with receptor proteins in the cell membrane
TERM 6
DEFINITION 6 G-protein-linked receptor Tyrosine-kinase receptor Ion- channel receptors - also intracellular receptors TERM 7
DEFINITION 7 Signaling molecule(s) outside cell interact with receptor proteins in the cell membrane. TERM 8
DEFINITION 8 Signals are transduced to the inside of the cell via relay molecules in a signal transduction pathway. TERM 9
DEFINITION 9 Ultimately, the result of the signal transduction pathway is to elicit the specific activation of a cellular responses.