what are lipids??????
Answers
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a lipid is a substance of biological origin that is soluble in nonpolar solvents. It comprises a group of naturally occurring molecules that include fats, waxes, sterols, fat-soluble vitamins (such as vitamins A, D, E, and K), monoglycerides, diglycerides, triglycerides, and phospholipids.
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i think it may help u!!!
Lipids
⇒ Lipids are two types - simple e.g. fat and oil. And second one is compound i.e. lecithin, glycolipid.
⇒ Provides two times more energy (9 kcal/g) than carbohydrates.
⇒ Fat is the major stored food kept in adipose tissue.
⇒ Stored food is used as fuel when glucose is not available.
⇒ Lipase enzyme digests fats and break it into fatty acids and glycerol.
⇒ There are two types of fatty acid - first one is saturated which is solid at room temperature and second one is unsaturated fat which is liquid at room temperature.
⇒ Our diet contain less saturated fats like butter and ghee ,etc in comparison to unsaturated fats like simple vegetable oil.
⇒ Excess of saturated fats in diet may lead to heart attack as they increase blood cholesterol and higher level of cholesterol is responsible for hypercholestrocemia.
⇒ Human diet should have more unsaturated fatty acid as that are not synthesized in the body itself. Such fatty acid are called essential fatty acid like linoleic acid.
⇒ Fat function as a cushion and shock absorber for eye ball, gonads, kidney, etc.
⇒ Excess of lipids causes obesity, blood pressure and a number of cardiac problems.
⇒ Daily requirement of an adult is 50 g.