Oleander (nerium oleander) is a common but poisonous ornamental shrub. all parts of the plant contain chemicals that inhibit the na+/k+ pump. how would this affect sodium-glucose symporters (secondary active transport) of a given cell?

Glucose levels within the cell would decrease

Explanation:

Sodium glucose simulators are proteins that participate in secondary active transport within epithelial cells. This type of protein can be located in the cell membrane and has the function of transporting glucose and sodium into cells simultaneously. These proteins are directly dependent on Na+/K+ pumps, as they use the free energy released by them to efficiently transport sodium and glucose. For this reason, we can conclude that if a plant's chemicals inhibit the Na+/K+ pump, glucose and sodium concentrations will decrease because the proteins responsible for their transport into the cell will be weakened by a lack of energy.

the answer that best describes the relative refractory period in the neuron is the resting membrane potential is restored, but concentrations of sodium and potassium are not restored to their original state.

the refractory period is the time during which another stimulus given to the neuron will not lead to a second potential. thus, because na+ channels are inactivated during this time, additional depolarizing stimuli do not lead to new action potentials.  

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