Transport of one solute against its concentration gradient in tandem with anothe

Question

Transport of one solute against its concentration gradient in tandem with another that is diffusing down its concentration gradient. You are conducting research on nerve cells. During an experiment, you administered an electrical stimulation to the cells. the probable result of this stimulation will be to start the membrane water pump cause increased saturation of phospholipid tails increase membrane fluidity and asymmetry activate the active transport system open gated channels Which of the following characterizes the sodium-potassium pump? Sodium ions are pumped out of a cell against their gradient potassium inns are pumped into a cell against their gradient a carrier protein undergoes conformational change A and B A, B, and C ATP hydrolysis is directly coupled to the movement of glucose across the animal-cell plasma membrane sucrose into the plant vacuole CI and HCO^3 across the erythrocyte membrane Ca2+ to the extracellular medium or sarcoplasmic reticulum lumen. Action potentials are sudden membrane depolarization during which generalized membrane swelling will occur voltage-gated Na^+ channels open used also to mediate an influx of Ca^2+ at the synapse of a motor neuron and striated muscle cell consist of familiarly similar domain organization which can be divided between four polypeptides or one large protein Post synaptic neurons generate action potentials only when innervated by minimum of 50 neurons the summation of a series of multiple small depolarization has dissipated depolarized to the threshold potential localized K^+ channel openings exceeds the threshold potential. At a synapse, synaptic vesicles fuse with the postsynaptic membrane. synaptic vesicles fuse with the pre-synaptic membrane. neurotransmitters diffuse across the synaptic cleft B and C are correct.

Explanation / Answer

47. You are conducting research on nerve cells. During an experiment, you administer an electrical stimulation to the cells. The probable results of this stimulation will be to
e. open gated channels. –answer

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48. Which of the following characterizes the sodium-potassium pump?

E) A, B, and C are all correct. –answer

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49. ATP hydrolysis is directly coupled to the

movement of glucose across the animal cell plasma membrane

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50. action potentially are sudden membrane depolarisation during which

Voltage gated Na+ channels open

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The way toward moving sodium and potassium particles over the cell membrance is a dynamic transport handle including the hydrolysis of ATP to give the essential vitality. It includes a protein alluded to as Na+/K+-ATPase. This procedure is in charge of keeping up the expansive excessof Na+ outside the cell and the vast abundance of K+ particles within. A cycle of the vehicle procedure is outlined beneath. It finishes the vehicle of three Na+ to the outside of the cell and the vehicle of two K+ particles to within. This unequal charge exchange adds to the partition of charge over the layer. The sodium-potassium pump is an essential contributer to activity potential created by nerve cells. This pump is known as a P-sort particle pump on the grounds that the ATP communications phosphorylates the vehicle protein and causes an adjustment in its compliance.

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ATP hydrolysis is the response by which substance vitality that has been put away in the high-vitality phosphoanhydride bonds in adenosine triphosphate (ATP) is discharged, for instance in muscles, by creating work as mechanical vitality.

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