7.Cell Communication and Multicellularity 0.0 / 5 ? BiologyCell Communication and MulticellularityUniversityNone Created by: kpaul1234Created on: 13-04-21 11:31 Define a Signal Transduction Pathway It is a sequence of events that lead to a cell’s response to a signal. 1 of 13 Describe the function of Autocrine Signals. Autocrine signals affect the cells that made them. 2 of 13 Describe the function of Juxtacrine Signals. Juxtacrine Signals affect only adjacent cells. 3 of 13 Describe the function of Paracrine Signals. Paracrine signals affect nearby cells. 4 of 13 Describe the function of Hormones. Hormones travel to distant cells, usually via the circulatory system. 5 of 13 Describe what a crosstalk is. Crosstalks interconnect transduction pathways. 6 of 13 Describe the function of Protein Kinase Receptors. Protein kinase receptors catalyze phosphorylation of themselves and/or other proteins, which changes their shape. 7 of 13 Describe the function of G protein-coupled receptors. A signal binds to the receptor which activates a G proteins, which then activates an effector protein. 8 of 13 Describe the function of Intracellular Receptors. Intracellular receptors respond to signals such as light or chemicals that can cross the cell membrane. 9 of 13 Describe the function of Second Messengers. Second messengers are small molecules that mediate some steps in a cascade. 10 of 13 Describe the function of Protein Kinase Cascade. In a protein kinase cascade one protein kinase activates the next and so on. 11 of 13 Describe the function of cylic AMP cAMP is a second messenger that is involved in the regulation of glycogen, sugar and lipid metabolism. 12 of 13 Describe the function of a Desmotubule. Its derived from the Endoplasmic Reticulum that fills the space in the plasmodesmata channels 13 of 13
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