What is the primary function of the digestive system?

• To circulate blood

• To break down food and absorb nutrients

• To store oxygen

• To transport waste

Which organ is the main site for nutrient absorption?

• Stomach

• Large intestine

• Small intestine

• Liver

What role does the liver play in digestion?

• Absorbs glucose

• Produces bile

• Breaks down protein

• Stores enzymes

What is the function of bile?

• Breaks down proteins

• Helps with carbohydrate absorption

• Breaks down fats

• Absorbs water

Which part of the digestive system is responsible for eliminating solid waste?

• Small intestine

• Liver

• Stomach

• Large intestine

What is the function of the gallbladder?

• Produces bile

• Absorbs fat

• Stores bile

• Secretes insulin

What is chyme?

• A digestive hormone

• A type of waste

• A semi-liquid mixture of digested food in the stomach

• A part of the large intestine

What role does the pancreas play in digestion?

• Absorbs nutrients

• Produces bile

• Produces digestive enzymes

• Breaks down waste

Which of the following increases the surface area in the small intestine for absorption?

• Bile

• Chyme

• Villi and microvilli

• Enzymes

How long can digestion take, depending on the food and individual?

• 2–3 hours

• 12–18 hours

• 24–72 hours

• 5–6 days