S1 13/9 - Human Digestive System II

Which of the following correctly shows the organs in the human digestive system and the digestive enzymes that are secreted in it?

• I and VI

• I, II, III and VI

• I, II, V and VI

• I, IV and VI

Which of the following organs carry out both physical and chemical digestion? Select all that apply.

• mouth

• oesophagus

• stomach

• small intestine

• large intestine

Which of the following statements is/are true about digestion in the small intestine? Select all that apply.

• Digestion ends in the small intestine.

• Fats are broken down into fatty acids by the enzyme lipase in the small intestine.

• Maltose is broken down into glucose by the enzyme maltase in the small intestine.

• The gastric juice in the small intestine contains the digestive enzymes maltose, lipase and protease.

Which of the following examples of chemical digestion is not correct?

• A

• B

• C

• D

Which of the following statements correctly describes the gastric juice secreted by the glands in the stomach? Select all that apply.

• The hydrochloric acid in gastric juice helps to break down proteins.

• The hydrochloric acid in gastric juice provides an acidic medium for the protease enzyme to function optimally.

• The gastric juice enables physical digestion in the stomach.

• The gastric juice in the stomach contains protease and hydrochloric acid.