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Questions and Answers
What is the role of G-proteins in G-protein coupled receptor (GPCR) signaling?
What is the role of G-proteins in G-protein coupled receptor (GPCR) signaling?
- G-proteins are always in an active state and directly bind to the ligands for signal transduction
- G-proteins are responsible for isolating receptors using affinity chromatography
- G-proteins are only involved in the discovery of GPCRs and do not play a role in signal transduction
- G-proteins can be in active or inactive states and help in signal transduction by hydrolyzing GTP (correct)
What is the primary function of ligands in cell communication?
What is the primary function of ligands in cell communication?
- Ligands are responsible for isolating receptors using affinity chromatography
- Ligands act as GTP-binding proteins to regulate signal transduction
- Ligands directly initiate the response in the target cell without the involvement of receptor proteins
- Ligands are signaling molecules that bind to receptor proteins to initiate the process of signal transduction (correct)
Which type of cell communication is used for long-distance signaling?
Which type of cell communication is used for long-distance signaling?
- Endocrine (correct)
- Paracrine
- Synaptic
- Autocrine
How were GPCRs discovered?
How were GPCRs discovered?
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What is the main characteristic of G-protein coupled receptors (GPCRs)?
What is the main characteristic of G-protein coupled receptors (GPCRs)?
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