Essential Cell Biology Chapter 16-Cell Signaling Exam Questions with Correct Answers

How does cell-cell signaling influence animal development in an embryo? (3) - ANSWER--receive signals to designate their specialization -receive signals to where they will locate -receive signals on whether it will survive, die, or divide what is signal transduction? - ANSWER-the transmission of molecular signals from a cell's exterior to its interior; converting the signals that carry information from one form to another Explain these terms in how they relate to one another: -signaling cell -target cell -intracellular signal molecule -extracellular signal molecule -receptor - ANSWER-the signaling cell produces an extracellular signal molecule that is detected by the receptor on the target cell to produce an intracellular signaling molecule that alter cell behavior what is cell signaling? - ANSWER-the molecular mechanisms by which cells detect and respond to external stimuli and send messages to other cells What is characteristic about hormone extracellular signal molecules? (endocrine signaling) - ANSWER-the hormone is "broadcasted" throughout the whole body as it travels via bloodstream what are cells that produce hormones? - ANSWER-endocrine cells Part of the pancreas is an endocrine gland that produces several hormones. What is one of these hormones that is most important and its function? - ANSWER-insulin: regulates glucose uptake in the body What is characteristic about paracrine signaling? - ANSWER--they are diffused locally through the extracellular fluid -act as local mediators: stay in the area they are secreted What types of things do local mediators regulate? (2) - ANSWER-cells that regulate inflammation at a site of infection or control cell proliferation in response to a wound