Alternative Name for G-Protein Coupled Receptors
Type II receptors (G-protein coupled receptors) are also known as:
- Metabotropic receptors — Correct Answer
- Ionotropic receptors
- Nuclear receptors
- Kinase-linked receptors
Explanation:
Correct Answer: Metabotropic receptors
Type II — G-protein coupled receptors are also known as metabotropic receptors or 7-transmembrane spanning receptors. They are coupled to intracellular effector systems via a G-protein. Examples: muscarinic acetylcholine receptors and adrenergic receptors.
Four Types of Receptors
- Type I — Ionotropic (Ligand-gated ion channels): Fast neurotransmitters; e.g. nicotinic ACh receptors, glutamate receptors.
- Type II — Metabotropic (G-protein coupled): Slow transmitters and hormones; e.g. muscarinic ACh, adrenergic receptors.
- Type III — Kinase-linked receptors: Insulin, cytokines, growth factors.
- Type IV — Nuclear receptors (regulate gene transcription): Steroid hormones, thyroid hormone.
📚 About this Topic — Veterinary Pharmacology and Toxicology
This multiple choice question is from Veterinary Pharmacology and Toxicology, Veterinary Science. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Veterinary Pharmacology and Toxicology to strengthen your preparation.
