Anonymous
Jul 25
Explain 5 types of cell signalling?
1 view
1 view
2 answers
Sort By
ChatGPT
Jul 25
1. Endocrine signaling: In endocrine signaling, hormones are released by endocrine cells into the bloodstream and travel to target cells in distant parts of the body. These hormones bind to specific receptors on the surface of target cells, triggering a cellular response.
2. Paracrine signaling: In paracrine signaling, cells release signaling molecules that act on nearby target cells. The signaling molecules diffuse through the extracellular fluid and bind to receptors on the surface of target cells, leading to a cellular response.
3. Autocrine signaling: In autocrine signaling, cells release signaling molecules that act on the same cell or cells of the same type. The signaling molecules bind to receptors on the surface of the same cell that released them, triggering a cellular response.
4. Juxtacrine signaling: In juxtacrine signaling, cells communicate with each other through direct contact. Cell surface molecules on one cell bind to receptors on an adjacent cell, triggering a cellular response.
5. Synaptic signaling: In synaptic signaling, neurons release neurotransmitters at synapses, which are specialized junctions between neurons or between neurons and target cells. The neurotransmitters bind to receptors on the postsynaptic cell, triggering a cellular response.
2. Paracrine signaling: In paracrine signaling, cells release signaling molecules that act on nearby target cells. The signaling molecules diffuse through the extracellular fluid and bind to receptors on the surface of target cells, leading to a cellular response.
3. Autocrine signaling: In autocrine signaling, cells release signaling molecules that act on the same cell or cells of the same type. The signaling molecules bind to receptors on the surface of the same cell that released them, triggering a cellular response.
4. Juxtacrine signaling: In juxtacrine signaling, cells communicate with each other through direct contact. Cell surface molecules on one cell bind to receptors on an adjacent cell, triggering a cellular response.
5. Synaptic signaling: In synaptic signaling, neurons release neurotransmitters at synapses, which are specialized junctions between neurons or between neurons and target cells. The neurotransmitters bind to receptors on the postsynaptic cell, triggering a cellular response.
0
Google Gemini AI
Jul 25
1. Endocrine Signaling:
- Long-distance signaling using hormones released from endocrine glands into the bloodstream.
- Hormones travel throughout the body and bind to receptors on target cells.
- Examples: Insulin, growth hormone, thyroid hormone.
2. Paracrine Signaling:
- Short-distance signaling where signal molecules act on nearby cells.
- Signaling molecules are secreted by one cell and bind to receptors on adjacent cells.
- Examples: Nerve growth factor, cytokines, chemokines.
3. Autocrine Signaling:
- A special case of paracrine signaling where cells secrete molecules that bind to receptors on their own cell membrane.
- Allows cells to respond to their own signals.
- Examples: Epidermal growth factor, platelet-derived growth factor.
4. Juxtacrine Signaling:
- Direct cell-cell contact where signaling molecules are present on the cell surface of one cell and interact with receptors on the surface of an adjacent cell.
- Examples: Notch signaling, Wnt signaling.
5. Synaptic Signaling:
- Specialized form of signaling that occurs between neurons at synapses.
- Neurotransmitters released by presynaptic neurons bind to receptors on postsynaptic neurons, triggering a response.
- Allows for rapid and precise communication in the nervous system.
- Long-distance signaling using hormones released from endocrine glands into the bloodstream.
- Hormones travel throughout the body and bind to receptors on target cells.
- Examples: Insulin, growth hormone, thyroid hormone.
2. Paracrine Signaling:
- Short-distance signaling where signal molecules act on nearby cells.
- Signaling molecules are secreted by one cell and bind to receptors on adjacent cells.
- Examples: Nerve growth factor, cytokines, chemokines.
3. Autocrine Signaling:
- A special case of paracrine signaling where cells secrete molecules that bind to receptors on their own cell membrane.
- Allows cells to respond to their own signals.
- Examples: Epidermal growth factor, platelet-derived growth factor.
4. Juxtacrine Signaling:
- Direct cell-cell contact where signaling molecules are present on the cell surface of one cell and interact with receptors on the surface of an adjacent cell.
- Examples: Notch signaling, Wnt signaling.
5. Synaptic Signaling:
- Specialized form of signaling that occurs between neurons at synapses.
- Neurotransmitters released by presynaptic neurons bind to receptors on postsynaptic neurons, triggering a response.
- Allows for rapid and precise communication in the nervous system.
0
