A4: Digestive System - Multiple Choice Questions

What is the primary function of the mouth in digestion?

• Absorb nutrients

• Secrete insulin

• Mechanical and chemical breakdown

• Produce bile

Which part of the digestive system connects the mouth to the stomach?

• Small intestine

• Large intestine

• Oesophagus

• Pancreas

What enzyme in the saliva begins the digestion of carbohydrates?

• Pepsin

• Amylase

• Lipase

• Lactase

What is the main function of the small intestine?

• Absorb water

• Digest fibre

• Absorb nutrients

• Store bile

Where is bile produced and what is its role?

• Stomach – breaks down carbohydrates

• Liver – emulsifies fats

What is the primary role of dietary fibre in digestion?

• Build muscle

• Emulsify fats

• Aid bowel movement and digestion

• Provide amino acids

Which organ produces enzymes like trypsin, amylase, and lipase?

• Liver

• Small intestine

• Stomach

• Pancreas

Which macronutrient generally takes the longest to digest?

• Carbohydrates

• Fats

• Proteins

• Fibre

Which part of the digestive system absorbs water and forms faeces?

• Small intestine

• Stomach

• Large intestine

• Pancreas

What is the main role of fluids in digestion?

• Provide energy

• Speed up enzyme activity

• Transport nutrients and aid in breakdown

• Increase muscle tone