Digestion and Absorption Quiz

What is the primary purpose of digestion?

• To break down food for absorption into the bloodstream

• To make food taste better

• To eliminate waste from the body

• To store food for later use

Which part of the body is primarily responsible for mechanical digestion?

• Large intestine

• Mouth and stomach

• Small intestine

• Liver

What is the role of enzymes in chemical digestion?

• To transport nutrients in the bloodstream

• To absorb water from food

• To mechanically break down food

• To break down food into its chemical components

Which enzyme in saliva helps break down starch into sugar?

• Lipase

• Amylase

• Pepsin

• Protease

What is the function of bile in digestion?

• To break down proteins

• To absorb vitamins

• To emulsify fats

• To digest carbohydrates

How does the small intestine maximize nutrient absorption?

• By having folds and villi to increase surface area

• By having a smooth surface

• By being very short

• By producing digestive enzymes

What is the role of microvilli in the small intestine?

• To transport nutrients to the liver

• To increase surface area for absorption

• To store excess nutrients

• To produce digestive enzymes

What happens to food particles in the small intestine after digestion?

• They are converted into energy

• They are absorbed into the bloodstream

• They are stored for later use

• They are excreted as waste

What is the primary function of the large intestine?

• To produce bile

• To break down fats

• To absorb remaining water

• To digest proteins

What can happen if the large intestine does not absorb water properly?

• Constipation

• Dehydration

• Diarrhea

• Indigestion