Digestive System Quiz

What is the main purpose of digestion?

• To produce oxygen

• To break down food into usable nutrients

• To circulate blood

• To produce hormones

What is absorption?

• Breaking food into smaller pieces

• Transporting food through the esophagus

• Taking nutrients into the blood from the digestive system

• Producing enzymes in the pancreas

Tags

NGSS.MS-LS1-7

Which macromolecule begins digestion in the mouth?

• Proteins

• Lipids

• Carbohydrates

• Nucleic acids

What enzyme is found in saliva that helps break down carbohydrates?

• Lipase

• Amylase

• Pepsin

• Trypsin

Tags

NGSS.MS-LS1-7

What is the food called once it has been chewed and mixed with saliva?

• Chyme

• Bolus

• Enzyme

• Bile

What macromolecules are digested in the esophagus?

• Carbohydrates

• Proteins

• Fats

• None

What movement pushes the bolus from the mouth to the stomach?

• Peristalsis

• Constriction

• Digestion

• Absorption

What macromolecule is digested in the stomach?

• Carbohydrates

• Lipids

• Proteins

• Nucleic acids

Which enzyme digests proteins in the stomach?

• Amylase

• Pepsin

• Lipase

• Trypsin

What is the semi-liquid mixture of food and stomach juices called?

• Bolus

• Enzyme

• Chyme

• Bile