Digestive System Quiz

What is the main purpose of mechanical digestion?

• To chemically break down food into nutrients

• To physically break down food into smaller pieces

• To absorb nutrients into the bloodstream

• To eliminate waste from the body

Which action is part of mechanical digestion?

• Enzyme secretion

• Nutrient absorption

• Chewing action

• Waste elimination

What role does the stomach play in chemical digestion?

• It absorbs nutrients

• It churns food with enzymes and hydrochloric acid

• It stores bile

• It eliminates waste

What is the function of bile in digestion?

• It breaks down proteins

• It emulsifies fats and neutralises stomach acid

• It absorbs carbohydrates

• It stores vitamins

Where are pancreatic juices released?

• Into the stomach

• Into the duodenum

• Into the gallbladder

• Into the bloodstream

What is the role of the pancreas in digestion?

• It stores bile

• It produces digestive enzymes

• It absorbs nutrients

• It eliminates waste

What is the role of the small intestine in mechanical digestion?

• It absorbs nutrients

• It emulsifies fats

• It churns food

• It breaks down proteins

What enzyme is found in saliva?

• Pepsin

• Amylase

• Lipase

• Trypsin

What is the function of the gallbladder in digestion?

• It produces bile

• It stores bile until needed

• It absorbs fats

• It releases enzymes

What happens to food in the buccal cavity?

• It is absorbed into the bloodstream

• It is dissolved with saliva

• It is churned with acid

• It is eliminated as waste