GCSE Digestion and Enzymes

Match up each large food molecule to the smaller molecule(s) it is made from

• Starch

• Amino acids

• Lipids (fats)

• Glucose

• Protein

• Glycerol and fatty acids

Match up each large food molecule to the type of enzyme that catalyzes (sppeds up) its breakdown

• Starch

• Protease

• Protein

• Lipase

• Lipids (Fats)

• Amylase

Match each chemical reagent to the food molecule it is used to test for.

• sugar / glucose

• biuret

• starch

• benedict's

• ethanol and water

• fats

• protein

• iodine solution

Where are most digested food molecules absorbed?

• large intestine

• liver

• small intestine

• stomach

Which organ is the small intestine?

• A

• B

• C

• D

Which organ is the stomach?

• A

• B

• C

• D

Which enzyme is produced in the stomach?

• carbohydrase / amylase

• lipase

• protease

Which organ produces bile?

• large intestine

• liver

• mouth

• pancreas

How does bile help in the digestion of foods?

• It increases the surface area of fats

• It is an enzyme that digests protein

• It makes the pH in the small intestine acidic

Which organs produce all three digestive enzymes?

• pancreas and small intestine

• stomach and pancreas

• salivary glands and pancreas