10 Questions
What is the time span for signal transduction to occur?
Milliseconds to a few seconds
What is involved in cell-cell signaling communication by extracellular signals?
Synthesis, release of signal molecule, transport to target cell, binding to specific receptor, initiation of intracellular signal transduction pathways, changes in cellular function, removal of signal and termination of cellular response
What are the types of intercellular signaling based on distance of signal action?
Endocrine, paracrine, autocrine
What are the components involved in intracellular signaling?
Heterotrimeric G proteins, small GTPases, cyclic nucleotides, calcium ion, protein kinases & phosphatases, phosphoinositide derivatives
What happens in endocrine signaling?
Hormones act on target cells distant from the site of synthesis
Signal transduction occurs only at the cell surface
False
Intracellular signaling involves calcium ion as a component
True
Cell-cell signaling communication involves synthesis, release, transport, binding, initiation, and changes in cellular function
True
Endocrine signaling involves hormones acting on target cells distant from the site of synthesis
True
The time span for signal transduction can be as long as a few minutes
False
Study Notes
Signal Transduction
- Time span for signal transduction: can be as long as a few minutes
- Occurs only at the cell surface: false, signal transduction can occur internally as well
Cell-Cell Signaling Communication
- Involves: synthesis, release, transport, binding, initiation, and changes in cellular function
- Extracellular signals are involved in this type of communication
Types of Intercellular Signaling
- Classified based on distance of signal action
- Types include: (no specific types mentioned)
Intracellular Signaling
- Components involved: include calcium ion
Endocrine Signaling
- Involves: hormones acting on target cells distant from the site of synthesis
Test your knowledge of signal transduction with this quiz! Explore the conversion of signals inside cells, the involvement of enzymes and second messengers, and the time span of these biochemical reactions. See how much you know about signaling cascades, second messenger pathways, and the resulting cellular responses.
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