BIOL 005A Lecture Notes - Lecture 13: Signal Transduction, Paracrine Signalling, Protein Kinase A
9 Feb 2018
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Document Summary
Cells of different mating types locate each other via secreted factors specific to each type. Cells in a multicellular organism communicate via signaling molecules. In local signaling, animal cells may communicate by direct contact. Animal and plant cells have cell junctions that directly connect the cytoplasm of. Signaling substances in the cytosol can pass freely between adjacent cells. In many other cases, animal cells communicate using secreted messenger adjacent cells molecules that travel only short distances. Growth factors, which stimulate nearby target cells to grow and divide, are. This type of local signaling in animals is called paracrine signaling one class of such local regulators in animals. Synaptic signaling occurs in the animal nervous system when a neurotransmitter. Local signaling in plants is not well understood beyond communication between is released in response to an electric signal plasmodesmata. In long-distance signaling, plants and animals use hormones. Hormonal signaling in animals is called endocrine signaling ; specialized cells.
