Becker's World of the Cell (9th Edition)
9th Edition
ISBN: 9780321934925
Author: Jeff Hardin, Gregory Paul Bertoni
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 22, Problem 22.9PS
Stricken by Strychnine. The plant alkaloid strychnine is a poison that occurs at high levels in a particular deciduous tree (Strychnos nux-vomica) found in India. It is an effective poison for killing rodents and other small vertebrates. In small doses, it has been used illegally by athletes as a stimulant. Strychnine antagonizes the glycine receptor, which, like the GABA receptor, is a ligand-gated chloride channel. Explain why strychnine has the effects it has.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Vision. Recall that muscarinic ACh receptors are located on smooth muscle tissue. The iris is composed of smooth muscle and is responsible for dilation and constriction of the pupil. Tropicamide is a medication applied to the eye during an eye exam.
If Tropicamide is an antagonist to the muscarinic receptors, what effect will this have on the eye?
Why do you have difficulty seeing well while you wait for the effects of this medicine to wear off?
True or False. The binding affinity between a peptide agonist and its specific G protein coupled receptor involves certain types of chemical bonds. Explain your answer in detail.. ( please do not copy off of another source.. e.g chegg)
True or False. The binding affinity between a peptide agonist and its specific G protein coupled receptor alone determines the sensitivity of a cell to the agonist peptide.
Chapter 22 Solutions
Becker's World of the Cell (9th Edition)
Ch. 22 - Ouabain is an African plant derivative that has...Ch. 22 - You have isolated a toxin from a previously...Ch. 22 - The poison produced by some species of Central and...Ch. 22 - Drugs that affect the reuptake of...Ch. 22 - The Truth About Nerve Cells. For each of the...Ch. 22 - QUANTITATIVE The Resting Membrane Potential. The...Ch. 22 - QUANTITATIVE Patch Clamping. Patch-clamp...Ch. 22 - The Equilibrium Potential. Answer each of the...Ch. 22 - QUANTITATIVE Heart Throbs. An understanding of...Ch. 22 - The All-or-None Response of Membrane Excitation. A...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- = 20 nM. The rate of receptor-ligand complex formation with an A receptor-ligand complex has a dissociation constant of Ka added ligand concentration of 10 µM is 5 × 10³ s¯¹. What is the value of the reverse rate constant, k_₁ ? k_₁ = 8-1arrow_forwardDescribe a mechanism by which a steroid hormone might act to increase intracellular levels of cyclic AMP. Match the words in the left column to the appropriate blanks in the sentences on the right. activate decrease inhibit repressed induced increase Reset Help Since steroid hormone-receptor complexes specific genes, a steroid hormone could in principle transcription of the gene for adenylate cyclase and, hence, steady-state level of this enzyme. Other possibilities could include synthesis of a phosphodiesterase inhibitor or synthesis of cAMP phosphodiesterase. the transcription of thearrow_forwardQuestion 1 Which of the following is not true regarding the circulatory system?AnswerThis system ensures that waste products are removed from all tissues of the body.This system is made up of the blood vessels, heart, and blood.The circulatory system has an important role in the exchange of gases in the lungs.During fetal development, the circulatory system develops from the lymphatic system.This system carries excess water and salts to the urinary system.1 points Question 2 Which of the following sources of scientific information is the most technical?Answergeneral interest news magazinesnewspapersnonfictional bookspeer-reviewed journalsscience magazines1 points Question 3 A farmer wants to improve crop yield in his fields by testing the effectiveness of a new pesticide available on the market. Which of the following is the best control for this experiment?Answera higher concentration of new pesticide used on the control field than the experimental fieldmore shade on the control field…arrow_forward
- Please help me with this question. PLEase give me the right answer and for number 2 WRITE AT LEAST A PARAGRAPGH and dont copy from internet.arrow_forwardPlesae ASAP. thanku Which of the following is not true about the glutamate family of ligand-gated ion channels? a. members are AMPA, kinase, and NMDA channels b. they are cation permable c. channels subunits have 3 full transmembrane doamins d. they require 5 subunits to amke a functional channelarrow_forwardProvide a diagram of the EPH RECEPTOR B2 (EPHB2) structure. Give bioinformatics structurearrow_forward
- Dear Expert. Thank you for your advice, which is good and helpful. I note that your answer is "when 3 binding sites have been occupied the activity of these receptors is maximum." However, I also note that for a similar question (see below) on α7 nicotinic Acetylcholine Receptor (nAChR) also gives the same answer, ie. at least 3 agonist binding sites should be occupied. Another Question - "To maximize the activity of an α7 nAChR, how many agonist binding sites should be occupied." I understand that in α7 nAChR, binding to two sites is more effective and binding to three sites is most effective for activation. On the other hand, binding to four or five sites in the nAChRs of chromosome 7 speeds up desensitization more than activation. Therefore, to maximize the activity of an α7 nicotinic Acetylcholine Receptor (nAChR) is also "3 sites". Am I right?arrow_forwardMembrane Receptors and Medicine. A patient, who has a stressful job, comes in with high blood pressure. The doctor prescribes beta-blockers to the patient. Explain what beta-blockers are and how these drugs help to bring down blood pressure to normal.arrow_forwardCell signaling. The ER doctors gave a patient an injection of epinephrine to increase his heart rate and blood pressure. The heart rate and blood pressure went up but not enough. The second dose of the same drug seemed not to have an effect. What do you think may be a possible explanation for this result?arrow_forward
- Thymosin - For the hormone Thymosin (in humans) what is; 1. the origin (gland that secretes the hormone) 2. action of the hormone 3. source of control (how is the hormone regulated)arrow_forwardQuestion. Explain the signal transduction mechanism for slow ligand-gated ion channels.arrow_forwardEndocrine - Can I get the answer? I do not need explanation. 1. The â C peptideâ of the insulin prohormone can be used clinically to monitor endogenous insulin production. True False 2. HbA1c is a glycated hemoglobin in which a glucose molecule is covalently bound to the N-terminal valine of a hemoglobin subunit. True False 3. HbA1c is used to monitor blood glucose levels because hemoglobin is the only protein in blood that is covalently modified by glucose. True Falsearrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
Nervous System - Get to know our nervous system a bit closer, how does it works? | Neurology; Author: FreeMedEducation;https://www.youtube.com/watch?v=6O-0CVAgaEM;License: Standard youtube license