ECOLOGY
EXCRETORY PRODUCTS AND THEIR ELIMINATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The liver is the second largest organ in the human body after the skin. It is located in the abdomen, sitting slightly to the right of the stomach and above the small intestines.
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The liver is the organ responsible for the conversion of glucose in the blood into glycogen which can be stored. The liver is the target organ for hormones such as insulin and glucagon that trigger this conversion.
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Blood sugar levels are controlled in the body by the liver and it has cells and receptors which are responsible for this control. The liver takes the blood sugar and controls the level of sugar by changing it.
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None of the above
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Detailed explanation-1: -The liver helps maintain blood glucose levels in response to the pancreatic hormones insulin and glucagon. After a meal, glucose enters the liver and levels of blood glucose rise. This excess glucose is dealt with by glycogenesis in which the liver converts glucose into glycogen for storage.
Detailed explanation-2: -The liver has a major role in the control of glucose homeostasis by controlling various pathways of glucose metabolism, including glycogenesis, glycogenolysis, glycolysis and gluconeogenesis.
Detailed explanation-3: -When blood sugar drops too low, the level of insulin declines and other cells in the pancreas release glucagon, which causes the liver to turn stored glycogen back into glucose and release it into the blood. This brings blood sugar levels back up to normal.
Detailed explanation-4: -Insulin is the main regulator of sugar in the bloodstream. This hormone is made by beta cells and continuously released into the blood stream. Beta cells are found in the pancreas, which is an organ behind the stomach. Insulin levels in the blood stream are carefully calibrated to keep the blood glucose just right.