about how much cholesterol is synthesized by the liver every day?
About how much cholesterol is synthesized by the liver every day? a. None b. A few mg c. Less than 300 mg d. At least 800 mg Cholesterol is also the precursor from which the body synthesizes vitamin D. One of the major uses of cholesterol is the synthesis of bile acids. These are synthesized in the liver from cholesterol and are secreted in the bile. They are essential for the absorption of fat from the contents of the intestine. Which of the following is a feature of cholesterol? a. Its Daily Value is 300 mg b. Its structure is similar to that of lecithin c. Most of the body's cholesterol is found circulating in the bloodstream d. The amount consumed in the diet usually exceeds the amount synthesized in the body Cholesterol can also create problems. 1  High levels of LDL cholesterol lead to the development of atherosclerosis: cholesterol-rich deposits (plaques) that form on the inside of blood vessels and predispose to heart attacks. 2  Cholesterol in the bile can crystallize to form gall stones that may block the bile ducts. Which of the following characteristics are shared by cholesterol and lecithin? a. Both are sterols b. Both are phospholipids c. Both are essential nutrients d. Both are synthesized in the body b. they lower HDL and raise LDL cholesterol in the body. c. some of their fatty acids change shape from cis to trans. d. products containing them become rancid sooner, contributing to a shorter shelf life. There is little evidence that lowering one's intake of cholesterol is, by itself, useful. An average intake of cholesterol of 300–500 mg per day is joined in the intestine by several times that amount that has been synthesized by the liver and appears to have little or no effect on blood levels of cholesterol. There is some loss, however, and to compensate for this and to meet other needs, the liver synthesizes some 1500–2000 mg of new cholesterol each day. It synthesizes cholesterol from the products of fat metabolism. There is also an unceasing transport of cholesterol in the blood between the liver and all the other tissues. In far smaller quantities, but no less important, cholesterol is starting ingredient for the synthesis of the steroid hormones: 1  progesterone; 2  estrogens; 3  androgens (e.g., testosterone); 4  glucocorticoids (e.g., cortisol); 5  mineralocorticoids (e.g., aldosterone). b. Synthesized from cholesterol c. Manufactured by the gallbladder d. Released into the small intestine whenever fat is present
The liver synthesizes some 1500–2000 mg of new cholesterol each day.