Biochemistry & Digestion Topic 2 Review: Digestion

Which of the following is where the majority of nutrient absorption occurs?

• Stomach

• Small intestine

• Large intestine

• Mouth

________ is the enzyme produced by the pancreas that digests proteins.

• Amylase

• Lipase

• Pepsin

• Trypsin

Which structure in the digestive system is primarily responsible for starch digestion?

• Stomach

• Small Intestine

• Mouth

• Large Intestine

In the digestive system, the _______ is where protein digestion begins.

• Mouth

• Stomach

• Small Intestine

• Large Intestine

Which enzyme originates in the salivary glands and acts in the mouth to digest carbohydrates?

• Pepsin

• Salivary amylase

• Lipase

• Trypsin

Trypsin is an enzyme that acts in the small intestine. What does it digest?

• Carbohydrates

• Proteins

• Fats

• Nucleic acids

Pepsin is an enzyme that originates in the stomach and digests ________.

• Carbohydrates

• Proteins

• Fats

• Nucleic acids

Match each of the following terms with the correct definition:

• Where the majority of nutrient absorption occurs.

•  Amylase

• Breaks down starches into simple sugars.

•  Lipase

• Increases the surface area on which enzymes can act.

•  Peristalsis

• Protein-digesting enzyme produced by the pancreas.

•  Physical digestion

• The breakdown of macromolecules by enzymes.

• Chemical digestion

Match each of the following terms with the correct definition:

• Required to neutralize gastric juice when it enters the

• Pepsin

• Where carbohydrate digestion begins.

• Peristalsis

• Wave-like muscle contractions that move food through the digestive tract.

• Gastric juice

• Produced by the liver, stored in the gall bladder.

• Villi

• Muscle contractions which act to move food through

• Small intestine

Label the digestive system

a

b

c

d

Large intestine

Stomach

Mouth

Esophagus