Lipids Quiz

Why are lipids insoluble in water?

• Because they have a high proportion of C-H bonds

• Because they have a high proportion of O-H bonds

• Because they have a high proportion of N-H bonds

• Because they have a high proportion of S-H bonds

What is the main function of triglycerides?

• Energy storage

• Cell membrane structure

• Hormone production

• Enzyme activation

Which type of fatty acids have single C-C bonds?

• Saturated fatty acids

• Unsaturated fatty acids

• Monosaturated fatty acids

• Polyunsaturated fatty acids

What is the difference between monosaturated and polyunsaturated fatty acids?

• Monosaturated fatty acids have one double bond, while polyunsaturated fatty acids have more than one double bond

• Monosaturated fatty acids have more than one double bond, while polyunsaturated fatty acids have one double bond

• Monosaturated fatty acids have no double bonds, while polyunsaturated fatty acids have one double bond

• Monosaturated fatty acids have one double bond, while polyunsaturated fatty acids have no double bonds

What are trans fats?

• Fats produced through partial hydrogenation with a trans configuration

• Fats produced through partial hydrogenation with a cis configuration

• Fats produced through complete hydrogenation with a trans configuration

• Fats produced through complete hydrogenation with a cis configuration

Why are fats containing polyunsaturated fatty acids liquid at room temperature?

• The fatty acid chains bend at double bonds, preventing the fat molecules from aligning closely with one another

• The fatty acid chains straighten at double bonds, allowing the fat molecules to align closely with one another

• The fatty acid chains have a higher melting point, causing the fat molecules to solidify at room temperature

• The fatty acid chains have a lower melting point, causing the fat molecules to solidify at room temperature

What is the main function of phospholipids?

• Forming cell membranes

• Storing energy

• Transporting oxygen

• Regulating body temperature

What is the primary function of carbohydrates in the body?

• Energy storage

• Cell membrane structure

• Hormone production

• Enzyme activation

What is the difference between saturated and unsaturated fatty acids?

• Saturated fatty acids have single C-C bonds, while unsaturated fatty acids have double or triple C-C bonds

• Saturated fatty acids have double or triple C-C bonds, while unsaturated fatty acids have single C-C bonds

• Saturated fatty acids have no C-C bonds, while unsaturated fatty acids have single C-C bonds

• Saturated fatty acids have single C-C bonds, while unsaturated fatty acids have no C-C bonds

What is the main function of proteins in the body?

• Building and repairing tissues

• Energy storage

• Transporting oxygen

• Regulating body temperature