HUMAN DIGESTIVE SYSTEM - QUIZ

Which of the following correctly describes the purpose of digestion?

• To break down complex food molecules into simple soluble molecules

• To make complex food molecules from simple soluble molecules

• To make use of simple soluble food molecules

• To remove complex food molecules from the body

People in the Arctic region live in conditions where temperatures are as low as -40 °C. What should their diet be rich in, to adapt to these conditions?

• amino acids

• glucose

• fats

• vitamins

Which enzyme does the stomach produce?

• amylase

• lipase

• maltase

• protease

Why is the oesophagus muscular?

• To break the food into even smaller pieces

• To produce enzymes to digest food

• To push food from the mouth into the stomach

• To move the food back and forth in two directions

Where does carbohydrate digestion begins?

• liver

• mouth

• oesophagus

• stomach

Where does protein digestion begins?

• large intestine

• mouth

• small intestine

• stomach

Where does fat digestion begins?

• colon

• liver

• small intestine

• stomach

Name the enzyme that acts on starch.

What is the name of the product formed by action of protease on polypeptides or smaller protein molecules?

Which of the following is a physical digestion?

• Bile emulsifies fats into smaller fat droplets.

• Glucose formed by maltase in the small intestine.

• Protease breaks down the proteins.

• Salivary amylase mixes with starch in the mouth.