Understanding the Digestive System

Which of the following organs is primarily responsible for nutrient absorption in the digestive system?

• Stomach

• Small intestine

• Large intestine

• Oesophagus

What is the main function of the stomach in the digestive process?

• Absorption of nutrients

• Production of bile

• Mechanical and chemical digestion

• Water reabsorption

Which enzyme is responsible for breaking down proteins in the stomach?

• Amylase

• Lipase

• Pepsin

• Lactase

What is the role of bile in digestion?

• Neutralises stomach acid

• Breaks down carbohydrates

• Emulsifies fats

• Absorbs vitamins

Which of the following is a common digestive disorder characterised by inflammation of the stomach lining?

• Gastroenteritis

• Irritable Bowel Syndrome (IBS)

• Gastritis

• Coeliac disease

What is the primary function of the large intestine in the digestive system?

• Digestion of proteins

• Absorption of water and electrolytes

• Production of digestive enzymes

• Breakdown of fats

Which part of the alimentary canal is responsible for the initial breakdown of carbohydrates?

• Stomach

• Mouth

• Small intestine

• Large intestine

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

• Amylase

• Trypsin

• Lipase

• Pepsin

What is the approximate length of the small intestine in an adult human?

• 1.5 metres

• 3 metres

• 6 metres

• 9 metres

Which condition is characterised by the inability to digest lactose, a sugar found in milk and dairy products?

• Coeliac disease

• Lactose intolerance

• Crohn's disease

• Ulcerative colitis