IGCSE Biology - Nutrition and Digestion

The enzyme trypsin is produced in the:

• Stomach

• Pancreas

• Salivary glands

• Liver

Proteins are broken down into:

• Amino acids

• Glucose

• Fatty acids

• Glycerol

The type of enzyme responsible for the digestion of carbohydrates is:

• Carbohydrases

• Lipases

• Proteases

• Peptidases

Where fatty acids and glycerol get absorbed after the digestion of lipids is:

• Blood capillaries in the villi

• Lacteal in the villi

• Stomach

• Liver

The enzyme pepsin is produced in the:

• Small intestine

• Large intestine

• Stomach

• Pancreas

The main region for the digestion of starch is:

• Mouth

• Stomach

• Large intestine

• Small intestine

The end product of the digestion of starch is:

• Glycerol

• Glucose

• Fatty acids

• Amino acids

The enzyme responsible for the initial breakdown of proteins in the stomach is:

• Trypsin

• Pepsin

• Amylase

• Lipase

The enzyme responsible for the initial breakdown of starch in the mouth is:

• Amylase

• Maltase

• Lipase

• Pepsin

The main purpose of the digestive process is:

• To break down large, insoluble food molecules into smaller, simpler molecules.

• To convert food into energy.

• To remove waste products from the body.

• To absorb food into the blood stream