Why is there many different glucose transporter for the human body? in our biochem book we have 12 different types of glucose transporter.

I’m not sure which answer is true for all that answer this question can you please help?

What is the enzymatic activity of sodium-potassium ATPase (pump)?     binds to and hydrolyzes ATP; binds to 3 Na+ in cytoplasm and releases outside cell; binds to 2 K+ outside cell and releases into cytoplasm     binds to and hydrolyzes ATP; binds to 2 Na+ in cytoplasm and releases outside cell; binds to 3 K+ outside cell and releases into cytoplasm     binds to and hydrolyzes GTP; binds to 3 Na+ in cytoplasm and releases into nucleus; binds to 2 K+ inside cell and releases into lysosome     binds to and hydrolyzes 3 ATP; binds to 1 Na+ in cytoplasm and releases outside cell; binds to 1 K+ outside cell and releases into cytoplasm

Amoeboid cells that migrate through our tissues, such as the class of white blood cells known as neutrophils, often do so in a directed manner, triggered, for instance, by chemical signals released by pathogens such as bacteria. Directed migration in response to a chemical stimulus is known as chemotaxis. Part of an efficient chemotactic response is the ability of cells to polarize. As is the case with our structurally-polar polymers like F-actin or microtubules, polarization here refers to an asymmetry in the cells, rather than an electrical charge. In this case, it involves one part of the cell becoming the “front” (or leading edge) and another the rear. In a well-polarized, migrating cell, it’s been observed that an active form of Rac (which, in turn, can activate ARP 2/3) is concentrated towards the front of the cell, whereas an active form of Rho (which, in turn, can activate formin, inhibit cofilin/ADP, and activate myosin II) is found toward the rear of the cell. Based on your…