Digestive System Video Question Quiz

What needs to happen before the energy from our food can be used by our bodies?

• The food must be cooked thoroughly.

• The food must be broken down into smaller pieces and digested.

• The food must be stored in the body for a long duration.

• The food must be combined with other types of food.

Tags

NGSS.MS-LS1-7

Where does absorption of digested food primarily take place?

• In the stomach.

• In the large intestine.

• In the small intestine.

• In the mouth.

Which type of enzymes break down carbohydrates into simple sugars?

• Protease enzymes.

• Lipase enzymes.

• Amylase enzymes.

• Pepsin enzymes.

What is the main function of protease enzymes in the digestive system?

• To break down fats into glycerol and fatty acids.

• To break down proteins into amino acids.

• To break down carbohydrates into simple sugars.

• To emulsify lipids into smaller droplets.

What is the pH level of the stomach that allows pepsin to work optimally?

• About 2

• About 8

• About 6

• About 4

Which enzyme is released in the saliva and begins the digestion of starch?

• Lipase

• Protease

• Amylase

• Pepsin

Tags

NGSS.MS-LS1-7

What is the role of emulsification in the digestion of lipids?

• It breaks down lipids into amino acids.

• It combines lipids with carbohydrates.

• It breaks the lipids into smaller droplets with a larger surface area for enzymes to work on.

• It solidifies lipids for easier excretion.

What is the primary role of hydrochloric acid in the stomach?

• To emulsify dietary fats

• To neutralize stomach acid

• To kill bacteria and provide an acidic environment for enzymes

• To break down carbohydrates

Tags

NGSS.MS-LS1-7

Which organ is responsible for the production of bile?

• Stomach

• Small intestine

• Liver

• Pancreas