Medical Chemistry: Lipids Definition and Functions

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What is the main property of lipids?

Association with carbohydrates

Solubility in water

Esters of fatty acids (correct)

Insolubility in nonpolar solvents

In what specialized cells are neutral fats stored?

Adipocytes (correct)

Osteocytes

Hepatocytes

Erythrocytes

What role do lipids play in cell membranes?

Digestive function

Enzymatic activity

Structural support (correct)

Storage of genetic material

What function do lipids serve in the myelin sheath of nerves?

Insulating material Signup and view all the answers

Which vital organs do lipids support as a pad?

Kidney and liver Signup and view all the answers

What additional roles do lipids serve besides being a fuel and insulating material?

Hormonal functions and mediation Signup and view all the answers

What is the main function of lipids in the body?

Support vital organs and act as a pad for kidneys and liver Signup and view all the answers

Which category of lipids contains esters of fatty acids with alcohols other than glycerol?

Simple lipids Signup and view all the answers

What is the main source of fatty acids?

Hydrolysis of fats Signup and view all the answers

What are examples of compound or conjugated lipids?

Phospholipids, Glycolipids, and Proteolipids Signup and view all the answers

What is a characteristic of fatty acids?

They may be saturated or unsaturated Signup and view all the answers

Which group of fatty acids is essential and must be obtained from the diet?

Essential fatty acids Signup and view all the answers

'Derived lipids' are produced by what process?

'Derived lipids' are produced by the hydrolysis of simple and compound lipids Signup and view all the answers

'Waxes' belong to which category of lipids?

'Waxes' are simple lipids Signup and view all the answers

'Phospholipids, Glycolipids, and Proteolipids' belong to which category of lipids?

'Phospholipids, Glycolipids, and Proteolipids' are compound or conjugated lipids Signup and view all the answers

What is the main function of essential fatty acids?

Act as hormones and mediators in the body Signup and view all the answers

What type of acid is linoleic acid?

Polyunsaturated fatty acid Signup and view all the answers

What is a characteristic of derived lipids?

They are present in association with simple and compound lipids in nature Signup and view all the answers

Which of the following is a common property of lipids?

Insolubility in water and polar solvents Signup and view all the answers

What is the main function of neutral fats in the body?

Store fuel in specialized cells known as adipocytes Signup and view all the answers

Which category of lipids serves as building blocks in cell membranes?

Phospholipids Signup and view all the answers

What is the primary function of the myelin sheath of nerves?

Act as an insulating material Signup and view all the answers

What role do lipids play in supplying essential nutrients to the body?

Act as a medium for fat-soluble vitamins Signup and view all the answers

Which group of fatty acids must be obtained from the diet because the body cannot synthesize them?

Essential fatty acids Signup and view all the answers

What is the main function of fatty acids?

Serving as hormones and second messengers Signup and view all the answers

What is the primary role of neutral lipids (fats and oils)?

Storing energy and providing insulation Signup and view all the answers

Which category of lipids contains compounds with other groups in addition to alcohols and fatty acids?

Compound or conjugated lipids Signup and view all the answers

What are examples of derived lipids?

Sterol and bile acid Signup and view all the answers

What is the nutritional classification of linoleic acid?

Polyunsaturated essential fatty acid Signup and view all the answers

Where are neutral fats primarily stored in the body?

In adipose tissue cells Signup and view all the answers

What do fatty acids contain an even (odd in rare conditions) number of?

$C$ atoms Signup and view all the answers

What is the main role of essential fatty acids in the body?

They are not formed in the animal body, so it is essential to take them in diet Signup and view all the answers

What is the function of derived lipids?