Digestive System Multiple Choice Questions

Which type of cells in the stomach secrete hydrochloric acid?

• Goblet cells

• Chief cells

• Parietal cells

• G cells

What is the main function of bile in digestion?

• Neutralising stomach acid

• Emulsifying fats

• Breaking down proteins

• Stimulating gastric secretion

Which digestive organ is primarily responsible for nutrient absorption?

• Large intestine

• Stomach

• Small intestine

• Oesophagus

What is the name of the sphincter that prevents food from re-entering the oesophagus from the stomach?

• Pyloric sphincter

• Lower oesophageal sphincter

• Anal sphincter

• Cardiac sphincter

What type of muscle is responsible for peristalsis in the gastrointestinal tract?

• Skeletal muscle

• Smooth muscle

• Cardiac muscle

• Voluntary muscle

Which part of the small intestine is the longest?

• Duodenum

• Ileum

• Jejunum

• Caecum

What is the primary role of the rectum in the digestive system?

• Absorbing nutrients

• Digesting proteins

• Storing feces

• Producing enzymes

What structure prevents reflux of urine from the bladder into the ureters?

• Internal sphincter

• Urethral meatus

• Acute angle entry

• External sphincter

What is the primary function of the large intestine?

• Digestion of proteins

• Absorption of water and electrolytes

• Neutralising stomach acid

• Breaking down fats

What is the function of salivary amylase?

• Breaking down proteins

• Breaking down carbohydrates

• Neutralising acids

• Destroying bacteria