Medical Chemistry: Lipids Definition and Functions

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35 Questions

What is the main property of lipids?

Esters of fatty acids

In what specialized cells are neutral fats stored?

Adipocytes

What role do lipids play in cell membranes?

Structural support

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

Insulating material

Which vital organs do lipids support as a pad?

Kidney and liver

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

Hormonal functions and mediation

What is the main function of lipids in the body?

Support vital organs and act as a pad for kidneys and liver

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

Simple lipids

What is the main source of fatty acids?

Hydrolysis of fats

What are examples of compound or conjugated lipids?

Phospholipids, Glycolipids, and Proteolipids

What is a characteristic of fatty acids?

They may be saturated or unsaturated

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

Essential fatty acids

'Derived lipids' are produced by what process?

'Derived lipids' are produced by the hydrolysis of simple and compound lipids

'Waxes' belong to which category of lipids?

'Waxes' are simple lipids

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

'Phospholipids, Glycolipids, and Proteolipids' are compound or conjugated lipids

What is the main function of essential fatty acids?

Act as hormones and mediators in the body

What type of acid is linoleic acid?

Polyunsaturated fatty acid

What is a characteristic of derived lipids?

They are present in association with simple and compound lipids in nature

Which of the following is a common property of lipids?

Insolubility in water and polar solvents

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

Store fuel in specialized cells known as adipocytes

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

Phospholipids

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

Act as an insulating material

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

Act as a medium for fat-soluble vitamins

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

Essential fatty acids

What is the main function of fatty acids?

Serving as hormones and second messengers

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

Storing energy and providing insulation

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

Compound or conjugated lipids

What are examples of derived lipids?

Sterol and bile acid

What is the nutritional classification of linoleic acid?

Polyunsaturated essential fatty acid

Where are neutral fats primarily stored in the body?

In adipose tissue cells

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

$C$ atoms

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

What is the function of derived lipids?

Serving as hormones and second messengers

What is the primary function of phospholipids, glycolipids, and proteolipids?

Contain other groups in addition to alcohols and fatty acids

What are the primary functions of waxes?

Serving as a pad for vital organs

Test your knowledge of the definition and function of lipids in medical chemistry. Learn about the common properties of organic compounds associated with esters and their role as a fuel storage in specialized cells.

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