We say that a fatty acid is saturated when A. It does not admit more carbon B. I

Question

We say that a fatty acid is saturated when A. It does not admit more carbon B. It does not contain carbon carbon double bonds C. When it has cis and trans isomers D. when it is not attached to another molecule Which of the following is NOT a characteristic of lipids? A. May contain a carboxylic acid group B. May contain a four-ring structure C. Soluble in water D. Mostly nonpolar Lipids are A. Steroids derivatives and fatty acids B. Steroids derivatives and carbohydrates C. Proteins and fatty acids D. Fatty acids and carbohydrates Essential fatty acids are A. Those that are in common foods B. Those that have good taste C. Those with low melting point D. Those we cannot synthesize What are triacylglycerols (triglyceraldihydes)? A. Lipoproteins and cholesterol B. Esters of glycerol and fatty acids C. Esters of sterols and fatty acids D. Esters of cholesterol and fatty acids

Explanation / Answer

32. B      Saturated fat contains triglycerides that consist only of saturated fatty acids. They are called "saturated" because there are no double bonds between the fatty acid chain and the carbon atoms, meaning the carbon atoms are fully filled or saturated with hydrogen atoms.

33. C      Lipids are a group of naturally occurring molecules that include fats, waxes, sterols, fat-soluble vitamins (such as vitamins A, D, E, and K), as a substance that is insoluble in water and soluble in alcohol, ether, and chloroform. Lipids are an important component of living cells.

34. A   lipid are made up of a glycerol molecule with three fatty acid molecules attached to it

35 . D    The body can synthesize most of the fats it needs from the diet. However, two essential fatty acids, linoleic and alpha-linolenic, cannot be synthesized in the body and must be obtained from food.

36. B A triglyceride is an ester derived from glycerol and three fatty acids. Triglycerides

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