Question

If the ATP supply in the cell shown in Fig. 10-22c suddenly vanished, would the intracellular glucose concentration increase, decrease, or remain the same?

Short answer

The concentration of glucose molecule decreases until it is coordinated with the extracellular glucose.

Step-by-step solution

Capillary side of cell

The${\text{Na}}^{\text{+}}{\text{-K}}^{\text{+}} \text{ATP}$ ase which is found on the cell's capillary side, is responsible for glucose transportin the cell. ${\text{Na}}^{\text{+}}{\text{-K}}^{\text{+}} \text{ATP}$ase's job is to keep the internal concentration low.

Intracellular glucose concentration

The ${\text{Na}}^{\text{+}}{\text{-K}}^{\text{+}} \text{ATP}$ase converts ATP to ADP+P and transports glucose across theepithelial membrane. Nat extrusion, which is carried out by the ${\text{Na}}^{\text{+}}{\text{-K}}^{\text{+}} \text{ATP}$ase, would stop if ATP suddenly vanished. As a result, no glucose can enter the cell via the glucose symport. The passive-mediated glucose transporter subsequently transports the glucose out the cell, and the amount of cellular glucose molecule decreases until it is coordinated with the external glucose.

As a result, until theglucose molecule is coordinated with theextracellular glucose, it declines.