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Y1S2 004 III Biochem Lipids Definition, Types, and Functions

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Y1S2 004 III Biochem Lipids Definition, Types, and Functions

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Questions and Answers

What is the characteristic of saturated fatty acids?

They are derived from the diet

They carry the maximum possible number of hydrogen atoms (correct)

They lack hydrogen atoms

They have at least one double bond

What is the difference between cis and trans-fatty acids?

Trans has its hydrogen atoms on the same side of the double bond

Cis has its hydrogen atoms on opposite sides of the double bond

Cis has more hydrogen atoms than trans

Cis has its hydrogen atoms on the same side of the double bond (correct)

What is the function of triglycerides in metabolism?

To transport dietary fat and serve as energy sources (correct)

To produce energy

To regulate body temperature

To synthesize proteins

What is the difference between phospholipids derived from glycerol and sphingosine?

Phospholipids from glycerol are called phosphoglycerides Signup and view all the answers

What is the characteristic of essential fatty acids?

They are derived from the diet Signup and view all the answers

What is the structure of a triglyceride?

A molecule of glycerol and three fatty acids Signup and view all the answers

What is the primary characteristic that defines a lipid?

Insolubility in water Signup and view all the answers

What is the term used to describe the process of naming fatty acids?

Systematic nomenclature Signup and view all the answers

What is the purpose of numbering carbon atoms in a fatty acid starting from the carboxyl terminus?

To identify the parent hydrocarbon Signup and view all the answers

What is the term used to describe a lipid molecule with one double bond?

Monounsaturated Signup and view all the answers

What is the role of lipids in the energy economy of the cell?

To provide energy storage and release Signup and view all the answers

What is the significance of the interplay between lipid structure and function?

It influences the digestion and metabolism of lipids Signup and view all the answers

What is the primary difference between glycolipids and sphingomyelin?

The identity of the unit linked to the primary hydroxyl group of the sphingosine backbone Signup and view all the answers

In which type of tissue is cerebroside typically found?

Neural tissue Signup and view all the answers

What is the orientation of the cholesterol molecule in membranes?

Parallel to the fatty acid chains of the phospholipids Signup and view all the answers

What is the characteristic of the hydroxyl group in cholesterol?

It interacts with the nearby phospholipid head groups Signup and view all the answers

Which of the following is an example of a bile salt?

Taurine or glycine or both Signup and view all the answers

What is the normal range for Low Density Lipoprotein Cholesterol (LDL-C)?

Less than 2.4 mmol/L Signup and view all the answers