Voltage-Gated Channels PDF
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This document contains multiple-choice questions and answers about voltage-gated channels in neurons and other cells. The questions cover topics like function, regulation, and location of various channel types. It appears to be a learning resource or study aid for undergraduate-level biology courses.
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Voltage-Gated Channels Answers 1. What is the primary function of pH-regulated channels in neurons? A. Phagocytosis B. Acid extrusion from the cell C. Nucleotide synthesis D. Neuropathic pain relief Answer: Acid extrusion from the cell (B) pH-regulated channels play a crucial role...
Voltage-Gated Channels Answers 1. What is the primary function of pH-regulated channels in neurons? A. Phagocytosis B. Acid extrusion from the cell C. Nucleotide synthesis D. Neuropathic pain relief Answer: Acid extrusion from the cell (B) pH-regulated channels play a crucial role in maintaining cellular pH balance. 2. What type of channels are used as antiepileptic and neuropathic painkiller drugs? A. G-type channels B. Channelrhodopsin-1 and -2 C. R-type channels D. T-type channels Answer: T-type channels (D) T-type channel blockers are used to treat epilepsy and neuropathic pain. 3. What is unique about channelrhodopsin-1 and -2? A. They are found in neurons B. They are involved in phagocytosis C. They are found in green algae D. They are pH-regulated Answer: They are found in green algae (C) Channelrhodopsin-1 and -2 are the only known channels found in green algae. 4. What is the role of cyclic nucleotide dynamics in channel function? A. Inhibition of T-type channels B. Modulation of phagocytosis C. Activation of channelrhodopsin-1 and -2 D. Regulation of pH balance Answer: Activation of channelrhodopsin-1 and -2 (C) Cyclic nucleotide dynamics play a role in the activation of channelrhodopsin-1 and -2. 5. What is the primary location of T-type channels? A. Green algae B. Neurons C. Bone D. Phagocytic cells Answer: Neurons (B) T-type channels are found in neurons and bone cells. 6. What is the function of acid extrusion from the cell? A. Neuropathic pain relief B. Phagocytosis C. Nucleotide synthesis D. pH regulation Answer: pH regulation (D) Acid extrusion from the cell helps regulate pH balance. 7. What type of channels are pH-regulated? A. R-type channels B. Channelrhodopsin-1 and -2 C. T-type channels D. G-type channels Answer: T-type channels (C) T-type channels are pH-regulated, which helps in acid extrusion from the cell. 8. What is the role of pH-regulated channels in phagocytosis? A. Inhibition of T-type channels B. Enhancement of phagocytosis C. Activation of channelrhodopsin-1 and -2 D. Regulation of pH balance Answer: Enhancement of phagocytosis (B) pH-regulated channels help regulate phagocytosis in cells. 9. What is the primary function of channelrhodopsin-1 and -2? A. pH regulation B. Light detection C. Nucleotide synthesis D. Phagocytosis Answer: Light detection (B) Channelrhodopsin-1 and -2 are light-gated channels found in green algae. 10. What is the relationship between T-type channels and neuropathic pain relief? A. T-type channels are involved in phagocytosis B. T-type channel blockers are used to treat neuropathic pain C. T-type channels regulate pH balance D. T-type channels cause neuropathic pain Answer: T-type channel blockers are used to treat neuropathic pain (B) T-type channel blockers are used to treat neuropathic pain.