9: Cell Communication
- Page ID
- 12502
\( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} } \) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash {#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)\(\newcommand{\AA}{\unicode[.8,0]{x212B}}\)
- 9.1: Signaling Molecules and Cellular Receptors - Signaling Molecules and Cellular Receptors
- Cellular communication ensures regulation of biological processes within various environments from single-celled to multicellular organisms.
- 9.3: Signaling Molecules and Cellular Receptors - Types of Receptors
- Receptors, either intracellular or cell-surface, bind to specific ligands, which activate numerous cellular processes.
- 9.4: Signaling Molecules and Cellular Receptors - Signaling Molecules
- Signaling molecules are necessary for the coordination of cellular responses by serving as ligands and binding to cell receptors.
- 9.5: Propagation of the Cellular Signal - Binding Initiates a Signaling Pathway
- Ligand binding to cell-surface receptors activates the receptor’s intracellular components setting off a signaling pathway or cascade.
- 9.6: Propagation of the Cellular Signal - Methods of Intracellular Signaling
- Signaling pathway induction activates a sequence of enzymatic modifications that are recognized in turn by the next component downstream.
- 9.7: Response to the Cellular Signal - Termination of the Signal Cascade
- Signal cascades convey signals to the cell through the phosphorylation of molecules by kinases.
- 9.8: Response to the Cellular Signal - Cell Signaling and Gene Expression
- Gene expression, vital for cells to function properly, is the process of turning on a gene to produce RNA and protein.
- 9.9: Response to the Cellular Signal - Cell Signaling and Cellular Metabolism
- The rush of adrenaline that leads to greater glucose availability is an example of an increase in metabolism.
- 9.10: Response to the Cellular Signal - Cell Signaling and Cell Growth
- Cell growth is promoted by ligands known as growth factors.
- 9.11: Response to the Cellular Signal - Cell Signaling and Cell Death
- When a cell is damaged, unnecessary, or dangerous to an organism, a cell can initiate the mechanism for cell death known as apoptosis.
- 9.12: Signaling in Single-Celled Organisms - Signaling in Yeast
- Yeasts utilize cell-surface receptors, mating factors, and signaling cascades in order to communicate.
- 9.13: Signaling in Single-Celled Organisms - Signaling in Bacteria
- Bacterial signaling allows bacteria to monitor cellular conditions and communicate with each other.