In a neuron, voltage-gated potassium channels open: (select all that apply) a. causing potassium to enter the cell b. when the cell has depolarized c. allowing the cell to repolarize d. causing depolarization During repolarization of a neuron...
What happens to sodium ions when a membrane depolarizes? Describe where a potassium cation and Sodium cation would be found in a resting neuron. Why do the kidneys produce renin? What does it mean for a neuron to be more permeable to sodium than potassium?
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When sodium sulphate is dissolved in water, why doesn't it release the ions {eq}Na^+, S_2^- \enspace and \enspace O_2^- {/eq}? Answer and Explanation: When sodium sulphate dissociates (disolves) it separates into a Na ion and a SO4 ion. The sulphat...
Due to the unequal transport of sodium and potassium ions by the Na-K pump, a membrane potential is generated. True or FalseAction Potential:In a nerve cell, an electrochemical gradient shifting causes the firing of a signal from a neuron. Th...
In contrast, Ca2+ ions are prone to being trapped by Glu183 at site 1, which then blocks the entrance of both Na+ and Ca2+ to the vestibule of the SF. In addition, Na+ permeates through the selective filter in an asymmetri- cal manner, a feature that resembles that of the ...
(Na+) is an important electrolyte in neuron function, and in osmoregulation between cells and the extracellular fluid. This is accomplished in all animals by Na+/K+-ATPase, an active transporter pumping ions against the gradient, and sodium/potassium channels.[95] Sodium is the most prevalent ...
Each duty cycle consists of one MS scan in FT mode (350-1500 m/z, resolution of 120,000 at m/z 400) followed by data-dependent tandem mass scans in IT mode for 3 s at top speed, utilizing HCD with NCE 30% on the most intense ions with charge states +2 or higher. The RAW ...
The activation gate within the Shaker potassium channel was shown to prevent ion permeation when closed by presumably acting as a steric barrier; there is simply not enough space for ions to enter or leave the pore when the gate is in its closed conformation10. This notion is supported by ...
D. Sodium ions Synapse: Effective communication of neurons is imperative for the functions of the nervous system. These communications take place at specialized sites known as synapses. More specifically, a synapse is a communication point between a pr...