The hormone insulin enhances the transport of glucose into body cells. Its secre
ID: 174107 • Letter: T
Question
The hormone insulin enhances the transport of glucose into body cells. Its secretion is controlled by a negative feedback system between the concentration of glucose in the blood and the cells that secrete insulin. Which of the following statements is most likely to be correct? A decrease in blood glucose concentration will stimulate insulin secretion, which will in turn lower the blood glucose concentration still further. An increase in blood glucose concentration will stimulate insulin secretion, which will in turn lower the blood glucose concentration. A decrease in blood glucose concentration will stimulate insulin secretion, which will in turn increase the blood glucose concentration. An increase in blood glucose concentration will stimulate insulin secretion, which will in turn increase the blood glucose concentration still further.Explanation / Answer
The hormone insulin enhances the transport of glucose into body cells. Its secretion is controlled by a negative feedback system between the concentration of glucose in the blood and the cells that secrete insulin. Which of the following statements is most likely to be correct?
A. A decrease in blood glucose concentration will stimulate insulin secretion, which will in turn lower the blood glucose concentration still further
B. An increase in blood glucose concentration will stimulate insulin secretion, which will in turn lower the blood glucose concentration---ANSWER
C. A decrease in blood glucose concentration will stimulate insulin secretion, which will in turn increase the blood glucose concentration
D. An increase in blood glucose concentration will stimulate insulin secretion, which will in turn increase the blood glucose concentration still further
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INSULIN:
is a peptide hormone delivered by beta cells of the pancreatic islets, and by the Brockmann body in some teleost fishIt effectsly affects the digestion system of sugars, fats and protein by advancing the retention of, particularly, glucose from the blood into fat, liver and skeletal muscle cells. In these tissues the consumed glucose is changed over into either glycogen through glycogenesis or fats (triglycerides) by means of lipogenesis, or, on account of the liver, into both. Glucose generation (and discharge into the blood) by the liver is firmly hindered by high centralizations of insulin in the blood. Circulating insulin likewise influences the amalgamation of proteins in a wide assortment of tissues. In high fixations in the blood it is along these lines an anabolic hormone, advancing the change of little atoms in the blood into extensive particles inside the cells. Low insulin levels in the blood have the inverse impact by advancing boundless catabolism.
Insulin is delivered in the pancreas and Brockmann body, and discharged when any of a few jolts are recognized. These jolts incorporate ingested protein and glucose in the blood created from processed food.Carbohydrates can be polymers of straightforward sugars or the basic sugars themselves. On the off chance that the sugars incorporate glucose, then that glucose will be retained into the circulation system and blood glucose level will start to rise. In target cells, insulin starts a flag transduction, which has the impact of expanding glucose take-up and capacity. At long last, insulin is corrupted, ending the reaction.
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