Digestive System Overview Quiz

What is the main role of the digestive system?

• To protect the body from infections

• To circulate blood throughout the body

• To break down food into absorbable nutrients

• To transport oxygen to cells

Which type of digestion involves the physical breakdown of food?

• Chemical digestion

• Enzymatic digestion

• Mechanical digestion

• Nutritional digestion

What are proteins broken down into during digestion?

• Monosaccharides

• Fatty acids

• Amino acids

• Nucleotides

Which of the following is NOT an accessory structure in the digestive system?

• Gallbladder

• Heart

• Pancreas

• Liver

Why is the digestive system considered an open environment?

• Because it is not connected to the circulatory system

• Because it is exposed to external air

• Because food must be absorbed into the body to be considered internal

• Because it has multiple openings