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Oleander (Nerium oleander) is a common but poisonous ornamental shrub. All parts of the plant contain...

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?

A) Sodium would enter the cell at a higher rate.

B) Glucose levels within the cell would decrease

C) Glucose would increasingly diffuse into the cell.

D) K+ would increase in higher concentrations inside the cell.

Science   Anatomy-And-Physiology   
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Answer #1

Answer: Glucose level within the cell would decrease.

Explanation: Oleander consist of toxic substance called oleandrin. Sodium - glucose symporters are the protein which is used for the transport of sodium and glucose into the cells. This protein depends on the energy released by the Na+/K+ pump.If the oleandrin inhibit the Na+/K+ pump the energy supply for the transport of sodium and glucose get decreased. Due to the reduced energy the transport of glucose inside the cell get decreased. This is the reason the glucose level within the cell get decreased.

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