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Lipids Overview and Functions Quiz

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Questions and Answers

What is the main role of lipids in the body?

Formation of polymers

Cell signaling

Structural support

Energy storage (correct)

Which of the following is NOT a type of lipid?

Waxes

Proteins (correct)

Phospholipids

Sterols

Where are saturated fats commonly found?

Dairy products

Fish oil

Palm & coconut oil (correct)

Flaxseed oil

What type of linkage is found in triacylglycerides?

Ester linkage (A) Signup and view all the answers

Which fatty acids are considered essential and commonly found in fish and flaxseed oil?

Omega fatty acids (C) Signup and view all the answers

What is the structure of phospholipids in cell membranes?

Two fatty acids and a phosphate group (A) Signup and view all the answers

What are the main types of secondary structure in proteins?

Alpha helices and beta sheets (D) Signup and view all the answers

What type of bond maintains the tertiary structure of proteins?

Disulfide bridge (D) Signup and view all the answers

What happens to a protein during denaturation?

It loses its normal function (D) Signup and view all the answers

Which type of protein functions as a motor?

Myosin (C) Signup and view all the answers

What is the primary structure of nucleic acids?

A chain made up of nucleotides (A) Signup and view all the answers

Which of the following is a main type of nucleic acid?

DNA (A) Signup and view all the answers

What type of bond joins disaccharides together?

Glycosidic linkage (A) Signup and view all the answers

Which artificial sweetener is approximately 200 times sweeter than sugar?

Aspartame (D) Signup and view all the answers

What is the main difference between starch and cellulose?

Starch has alpha glucose linkage, cellulose has beta glucose linkage (B) Signup and view all the answers

What component of the cell uses polysaccharides as energy stores?

Glycogen granules (C) Signup and view all the answers

What type of molecules are glycoproteins and glycolipids?

Carbohydrates bonded to lipids and proteins (A) Signup and view all the answers

What forms a specific 3D structure in proteins?

Peptide bonds (D) Signup and view all the answers