Macronutrient Digestion, Absorption & Utilisation Quiz

Which enzyme is primarily responsible for the initial breakdown of starch in the mouth?

• Pepsin

• Salivary amylase

• Lipase

• Lactase

Where does the majority of nutrient absorption occur in the human digestive system?

• Stomach

• Large intestine

• Small intestine

• Oesophagus

Which enzyme is responsible for the hydrolysis of proteins in the stomach?

• Trypsin

• Pepsin

• Amylase

• Maltase

What is the main end product of carbohydrate digestion that is absorbed into the bloodstream?

• Amino acids

• Fatty acids

• Glucose

• Glycerol

Which of the following best describes the process of enzymatic hydrolysis?

• Breaking down nutrients using water and enzymes

• Absorbing nutrients into the bloodstream

• Transporting nutrients to cells

• Storing nutrients in the liver

Which enzyme is secreted by the pancreas to aid in fat digestion?

• Pepsin

• Pancreatic lipase

• Maltase

• Sucrase

What is the role of bile in fat digestion?

• Hydrolyses proteins

• Emulsifies fats

• Breaks down carbohydrates

• Absorbs vitamins

Which of the following is NOT a macronutrient?

• Carbohydrate

• Protein

• Vitamin C

• Fat

What is the main function of villi in the small intestine?

• Secrete digestive enzymes

• Increase surface area for absorption

• Produce bile

• Store nutrients

Which enzyme is responsible for the final step in the digestion of maltose into glucose?

• Sucrase

• Maltase

• Lactase

• Amylase