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24. Toxin Q is produced by scorpions as a racemic mixture. The (-)enantiomer is a potent antagonist of The (+)enantiomer inhibits AChE in low concentrations and, at high concentration, acts as an antagonist of nicotinic acetylcholine receptors and inhibits acetylcholinesterase (AChE) activity at high concentrations. both nicotinic and muscarinic acetylcholine receptors. Which of the following statements are true? 1. The (-)enantiomer selectively inhibits AChE II. The (+)enantiomer selectively inhibits AChE III. The (-)enantiomer is more specific than the (+)enantiomer IV. The (+)enantiomer is more specific than the (-)enantiomer V. Muscarinic ACh receptors stereo-selectively bind with with the (+)enantiomer a) I, III b) II, III c) II, IV d) II, III, V e) I, III, V 28. The fibros

24. Toxin Q is produced by scorpions as a racemic mixture. The (-)enantiomer is a potent antagonist of The (+)enantiomer inhibits AChE in low concentrations and, at high concentration, acts as an antagonist of nicotinic acetylcholine receptors and inhibits acetylcholinesterase (AChE) activity at high concentrations. both nicotinic and muscarinic acetylcholine receptors. Which of the following statements are true? 1. The (-)enantiomer selectively inhibits AChE II. The (+)enantiomer selectively inhibits AChE III. The (-)enantiomer is more specific than the (+)enantiomer IV. The (+)enantiomer is more specific than the (-)enantiomer V. Muscarinic ACh receptors stereo-selectively bind with with the (+)enantiomer a) I, III b) II, III c) II, IV d) II, III, V e) I, III, V 28. The fibros

Biochemistry
Biochemistry
6th Edition
ISBN:9781305577206
Author:Reginald H. Garrett, Charles M. Grisham
Publisher:Reginald H. Garrett, Charles M. Grisham
Chapter32: The Reception And Transmission Of Extracellular Information
Section: Chapter Questions
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24. Toxin Q is produced by scorpions as a racemic mixture. The (-)enantiomer is a potent antagonist of The (+)enantiomer inhibits AChE in low concentrations and, at high concentration, acts as an antagonist of nicotinic acetylcholine receptors and inhibits acetylcholinesterase (AChE) activity at high concentrations. both nicotinic and muscarinic acetylcholine receptors. Which of the following statements are true? 1. The (-)enantiomer selectively inhibits AChE II. The (+)enantiomer selectively inhibits AChE III. The (-)enantiomer is more specific than the (+)enantiomer IV. The (+)enantiomer is more specific than the (-)enantiomer V. Muscarinic ACh receptors stereo-selectively bind with with the (+)enantiomer a) I, III b) II, III c) II, IV d) II, III, V e) I, III, V 28. The fibros
Transcribed Image Text:24. Toxin Q is produced by scorpions as a racemic mixture. The (-)enantiomer is a potent antagonist of The (+)enantiomer inhibits AChE in low concentrations and, at high concentration, acts as an antagonist of nicotinic acetylcholine receptors and inhibits acetylcholinesterase (AChE) activity at high concentrations. both nicotinic and muscarinic acetylcholine receptors. Which of the following statements are true? 1. The (-)enantiomer selectively inhibits AChE II. The (+)enantiomer selectively inhibits AChE III. The (-)enantiomer is more specific than the (+)enantiomer IV. The (+)enantiomer is more specific than the (-)enantiomer V. Muscarinic ACh receptors stereo-selectively bind with with the (+)enantiomer a) I, III b) II, III c) II, IV d) II, III, V e) I, III, V 28. The fibros
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