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Which statement best describes the interaction that occurs as a result of the bindi ligand to a ligand-gated ion channel receptor? A B с D ligand extracellular environment gate closed inactive ligand-gated ion channel receptor ions The process permanently opens or closes the ion channel. cytoplasm The process alters the membrane potential by changing the intracellular ionic concentration. The process causes G proteins to bind with GTP and become activated. The process removes three sodium ions from the cell and brings in two potassium

Which statement best describes the interaction that occurs as a result of the bindi ligand to a ligand-gated ion channel receptor? A B с D ligand extracellular environment gate closed inactive ligand-gated ion channel receptor ions The process permanently opens or closes the ion channel. cytoplasm The process alters the membrane potential by changing the intracellular ionic concentration. The process causes G proteins to bind with GTP and become activated. The process removes three sodium ions from the cell and brings in two potassium

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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**Question:** Which statement *best* describes the interaction that occurs as a result of the binding of a ligand to a ligand-gated ion channel receptor? **Diagram Description:** The diagram illustrates a ligand-gated ion channel embedded within a cell membrane. The channel comprises a gate that is currently closed. A ligand is shown approaching the channel from the extracellular environment. Ions are depicted as small green circles outside the channel, indicating that they cannot pass through until the gate is opened. **Answer Options:** - **A:** The process alters the membrane potential by changing the intracellular ionic concentration. - **B:** The process permanently opens or closes the ion channel. - **C:** The process causes G proteins to bind with GTP and become activated. - **D:** The process removes three sodium ions from the cell and brings in two potassium ions. In this context, a ligand-gated ion channel opens or closes in response to the binding of a chemical messenger, such as a ligand, allowing ions to pass through the membrane and potentially altering the membrane potential.
Transcribed Image Text:**Question:** Which statement *best* describes the interaction that occurs as a result of the binding of a ligand to a ligand-gated ion channel receptor? **Diagram Description:** The diagram illustrates a ligand-gated ion channel embedded within a cell membrane. The channel comprises a gate that is currently closed. A ligand is shown approaching the channel from the extracellular environment. Ions are depicted as small green circles outside the channel, indicating that they cannot pass through until the gate is opened. **Answer Options:** - **A:** The process alters the membrane potential by changing the intracellular ionic concentration. - **B:** The process permanently opens or closes the ion channel. - **C:** The process causes G proteins to bind with GTP and become activated. - **D:** The process removes three sodium ions from the cell and brings in two potassium ions. In this context, a ligand-gated ion channel opens or closes in response to the binding of a chemical messenger, such as a ligand, allowing ions to pass through the membrane and potentially altering the membrane potential.
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