Bio notes #3 - Bio notes #3 Keywords- chapter 11- cell...

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Bio notes #3 Keywords- chapter 11- cell communications 1. What is signal transduction? 2. Sutherlands concept of cell signaling 3. Role of “second messenger” cAMP and Ca++ in signal transduction 4. Receptors in plasma membrane vs intracellular receptors 5. Compare and contrast G protein- coupled receptor, tyrosine kinase receptor, and ligand- gated ion channels 6. Explain why different types of cells may respond differently to the same signal molecule 7. Understand the role of apoptosis in normal development and degenerative disease in vertebrates 8. Explain how an original signal molecule can produce a cellular response when it may not even enter the target cell - Cell-cell communication- (figures of diff junc) o Gap junctions o Plasmodestmata o Ligand- receptor interaction Sequence of reactions resulting in cellular change - Ex. Of cellular responses ( figures) o Apoptosis- “cell sucide” o Survive o Proliferate Skeletal muscle cell Contraction Heart muscle cell Relaxation Secretory cell Secretion o Signaling pathways also: Regulate synthesis of protein Asd Asdf - 3 stages of cell signaling o Signaling molecule outside cell (extracellular) o RECEPTION
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Bio notes #3 - Bio notes #3 Keywords- chapter 11- cell...

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