Question

Tor F 1. With the exception of steroids, all lipids contain at least one fatty acid. 2. Some lipids contain monosaccharides as part of their structure. 3. Some lipids contain an amino acid as part of their structure. 4. Glycerophospholipids contain a phosphate portion in their structure. 5. All lipids have a molecule of glycerin as their backbone. 6. Polyunsaturated fatty acids have more than one C-C double bond in their "backbone." 7. Fatty acids are soluble in water. 8. Prostaglandins are a type of fatty acids. 9. Saponification of a triglyceride produces three fatty acid salts and glycerir. 10. Polyunsaturated triglycerides found in vegetable oil are healthy. 11. Unsaturated fats are purposely saturated to make them healthier. 12. Trans unsaturated fatty acids typically have a higher melting point than their cis isomers 13. Steroids have a 4-ring structure that defines their backbone. 14. Cholesterol is the most important and abundant steroid in the body. 15. Even if you cut all cholesterol from your diet your body would still produce it. 16. Testosterone, Estradiol, Progesterone and Norethindrone are four steroids.-- 17. Adrenal corticosteroids are produced in the cerebellum. 18. Cholesterol is a fatty acid. 19. Stearic acid is a steroid. 20. Triacylglycerol contains no fatty acids.

Answer 1

1.True

Although steroids can bond to fatty acids, steroid molecules do not contain a fatty acid chain, and the monomer of a steroid biomolecule is difficult to define.Fats are just one type of lipid

2. True

In the saccharolipids, a sugar substitutes (saccharide) for the glycerol backbone that is present in glycerolipids and glycerophospholipids.

3. False

Proteins and lipids are examples of nutrients.The difference is that lipids contain fatty acids and glycerol, while proteins contain amino acids, which have nitrogen.

4. True

Glycerophospholipids are defined by the presence of a phosphate group substituting one of the three carbons of glycerol in the triglyceride structure.

5 False

One major class of lipids is called glycerolipids. Glycerolipids are composed of glycerol and fatty acids