Biochemistry Quiz

Which of the following is NOT a true biopolymer?

• DNA

• Lipids

• Proteins

• Carbohydrates

What is the general function of lipids?

• Energy storage

• Structural support

• Enzyme catalysis

• Transportation of oxygen

Which of the following is a component of triglycerides?

• Fatty acids

• Phospholipids

• Sterols

• Glycerol

What is the process called when hydrogen is added at the double bonds of unsaturated fats?

• Hydrolysis

• Saponification

• Oxidation

• Hydrogenation

Which of the following is a function of phospholipids?

• Energy storage

• Padding and insulation

• Precursor for biologically active material

• Membrane component

What is the main building block for triglycerides and phospholipids?

• Fatty acids

• Glycerol

• Sterols

• Phosphates

Which of the following is a saturated fatty acid?

• Palmitoleic acid

• Oleic acid

• Linoleic acid

• Stearic acid

What is the chemical test used to detect sterols?

• Liebermann-Burchard test

• Salkowski test

• Benedict's test

• Biuret test

How are dietary lipids transported into the intestinal cell?

• Emulsification by bile acids

• Hydrolysis by lipase

• Transportation by chylomicrons

• Absorption through the intestinal wall

Which lipoprotein is responsible for transporting cholesterol from tissues to the liver?

• Chylomicrons

• VLDL

• LDL

• HDL