Insulin maintain glucose levels in the blood. if blood glucose levels got very high, what would you expect to see happen to insulin levels? insulin levels would decrease. insulin levels would increase. insulin levels would not change.

The right answer is Insulin levels would increase.

Insulin is a polypeptide hormone involved in the glucose cycle.

Synthesized by β-cells of islets of Langerhans in the pancreas, insulin allows the absorption of glucose by muscle cells and adipocytes, and its conversion to glycogen or fatty acids. It is therefore a hypoglycemic hormone.

Its role is to maintain the constant concentration of blood glucose. When its secretion is insufficient, there is onset of diabetes, which is why diabetics receive regular injections of insulin.

cells use diffusion to get substances in and out of themselves. that diffusion will occur across the cell membrane or the outer covering of the cell. because we are talking about the surface of the cell, surface area and volume are  important factors here. as a cell increases in size, its surface area and volume increase as well.  we call that the surface area to volume ratio (sa: vol).  but the catch is that  volume increases at a greater rate than surface  area. in other words, as a cell gets bigger, the sa: vol gets smaller. so a really small cell like bacteria is mostly cell membrane (surface) with very little contents (volume). a really big cell like an egg, is mostly insides with a super thin membrane. so what ends up happening is that the cell cannot efficiently diffuse all of the stuff it needs in/out to survive. therefore cell size is limited to about 100mm. so how do we make organisms bigger than 100mm? cells divide! by dividing and becoming multicellular, organisms are able to grow!   check out the diagrams i attached to see the effect of sa: vol. i hope this ! good luck!