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Chapter 15: Q. 15.3 (page 510)

What are some functions of lipids in the body?

Short Answer

Expert verified

Hormonal lipids function as chemical messengers.

They are the primary structural components of cell membranes.

Step by step solution

01

An Introduction

Lipids are an organic chemical class that is largely insoluble in water. Lipids are molecules that are composed mostly of carbon, hydrogen, and oxygen and are composed of fats and oils. Triacylglycerols, phospholipids, and sterols are the three primary forms of lipids.

02

Determine the functions of the lipids.

Lipids perform the following roles in the body:

They are energy-rich dietary components that offer energy while fasting.

They shield the internal organs from mechanical harm.

They keep the internal organs warm.

Hormonal lipids function as chemical messengers.

They are the primary structural components of cell membranes.

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Most popular questions from this chapter

15.81 Identify the components (1to 6) contained in each of the following lipids (a to d):

1. glycerol

2. fatty acid

3. phosphate

4. amino alcohol

5. steroid nucleus

6. sphingosine

a. estrogen

b. cephalin

c. wax

d. triacylglycerol

Which of the following solvents might be used to dissolve an oil stain?

a. water

b.CCl4

c. diethyl ether

d. benzene

e. NaClsolution

Match the lipoprotein ( 1to 4) with its description (a to d).

1. chylomicrons

2. VLDL

3. LDL

4. HDL

a. has the greatest abundance of protein

b. "bad" cholesterol

c. carries triacylglycerols synthesized in the liver to the muscles

d. has the lowest density

Draw the condensed structural formula for the product of the hydrogenation of the following triacylglycerol:

Describe the similarities and differences between lecithin and cephalins.
See all solutions

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