Insulin is a protein hormone secreted by the β-cells of islets of Langerhans in the pancreas. It has an important effect on the metabolism of carbohydrates, lipids and proteins by promoting the absorption of glucose present in the blood by fat cells, liver cells and those of skeletal muscles.
Insulins reduce blood sugar by a double action:
- by stimulating the peripheral uptake of glucose, in particular by skeletal muscle (by promoting the synthesis of glucogen) and adipose tissue (by promoting the synthesis of lipids).
- by inhibiting the hepatic production of glucose. This shows that the action of insulin on the hepatocytes is different from that of other cells.
To explain these differences, we must address notions of genetics, and more specifically epigenetics: All these cells have the same genome (identical DNA), but the expression of the latter in the different cells are very different. For example, for adipocytes, the expression of the enzymes involved in lipogenesis is favored, whereas the expression of the enzymes of glucogenogenesis is favored in the muscle cells, and in the liver there is a genetic overexpression of the enzymes of neoglucogenesis.
Answer:
all their kids might have the disease
Explanation:
if you do a Punnett square for the gene Xx X for female and X Y for male, then there is a 50 percent chance their kids would have the disease
The population of bacteria growed rapidly in section B, but stayed the same rate in Section C
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Answer:
D. A brown gas produced
Explanation:
When a chemical reaction occur, there are several changes that takes place such as change in color, odor change, formation of a gas, and formation of a precipitate etcetera.
In the given chemical reaction, two colorless gas (NO and O2) react together and form brown gas (NO2). So, the change of gas from colorless to brown gas is the evidence that shows chemical reaction occurred.
Hence, the correct option is "D. A brown gas produced".
Mitosis is the process in cell division where the nucleus divides into two nulei