Digestive System Mastery Quiz

What is the primary function of the digestive system?

• To circulate blood throughout the body

• To break down food, and absorb nutrients so the body can make energy

• To transport oxygen to the body's cells

• To remove waste products from the body

What role does peristalsis play in digestion?

• It breaks down food particles mechanically

• It produces digestive enzymes

• It moves food through the digestive tract through wave-like muscle contractions

• It absorbs nutrients from digested food

Which of the following processes occurs in the small intestine?

• Absorption of water

• Absorption of most nutrients

• Storage of undigested food

• Production of bile

What is the main function of the large intestine?

• To produce digestive enzymes

• To absorb water and salts from the material that has not been digested as food

• To absorb proteins and carbohydrates

• To store bile

How does the stomach contribute to digestion?

• By absorbing nutrients directly into the bloodstream

• By producing bile to break down fats

• By mechanically and chemically breaking down food

• By filtering out toxins from the food

What is the difference between mechanical and chemical digestion?

• Mechanical digestion involves the absorption of nutrients, while chemical digestion involves the breakdown of food into smaller pieces

• Mechanical digestion involves the breakdown of food into smaller pieces through physical means, while chemical digestion involves the use of enzymes to break down food into its nutrient molecules

• Mechanical digestion occurs in the stomach, while chemical digestion occurs in the mouth

• There is no difference; they are terms for the same process

Which part of the digestive system is responsible for the absorption of nutrients?

• Stomach

• Large intestine

• Small intestine

• Esophagus

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

• To produce digestive enzymes

• To absorb nutrients

• To transport food from the mouth to the stomach

• To store undigested food

Which of the following is NOT a function of the stomach?

• Absorbing nutrients

• Producing hydrochloric acid

• Mixing food with digestive juices

• Initiating the digestion of proteins

What happens during chemical digestion?

• Food is cooled down to body temperature

• Food is physically broken down into smaller pieces

• Nutrients are absorbed directly into the blood

• Food molecules are broken down into smaller molecules by enzymes