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Signal Transduction Quiz

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Questions and Answers

What is the time span for signal transduction to occur?

Minutes to hours

Seconds to minutes

Days to weeks

Milliseconds to a few seconds (correct)

What is involved in cell-cell signaling communication by extracellular signals?

Synthesis, binding to specific receptor, initiation of intracellular signal transduction pathways, changes in cellular function

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 (correct)

Release of signal molecule, transport to target cell, binding to specific receptor, initiation of intracellular signal transduction pathways, changes in cellular function

Synthesis, release of signal molecule, transport to target cell, binding to specific receptor, 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?

Autocrine, juxtacrine, synaptic

Autocrine, endocrine, synaptic

Endocrine, paracrine, autocrine (correct)

Endocrine, paracrine, synaptic

What are the components involved in intracellular signaling?

Heterotrimeric G proteins, small GTPases, cyclic nucleotides, calcium ion, protein kinases & phosphatases, phosphoinositide derivatives Signup and view all the answers

What happens in endocrine signaling?

Hormones act on target cells distant from the site of synthesis Signup and view all the answers

Signal transduction occurs only at the cell surface

False Signup and view all the answers

Intracellular signaling involves calcium ion as a component

True Signup and view all the answers

Cell-cell signaling communication involves synthesis, release, transport, binding, initiation, and changes in cellular function

True Signup and view all the answers

Endocrine signaling involves hormones acting on target cells distant from the site of synthesis

True Signup and view all the answers

The time span for signal transduction can be as long as a few minutes

False Signup and view all the answers

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

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Description

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.