Organisation : Food and The Digestive System

Name the tube that connects the mouth to the stomach.

• Pancreas

• Thymus

• Oesophagus

• Ileum

In what two areas of the digestive system is amylase produced?

• Salivary glands and pancreas

• Salivary glands and liver

• Pancreas and stomach

• Pancreas and liver

What organ produces enzymes that work best at a low pH?

• Pancreas

• Stomach

• Small intestine

• Liver

Where is fat digested in the body?

• Small intestine

• Large intestine

• Stomach

• Mouth

What enzyme digests starch? (2 answers needed)

• Lipase

• Carbohydrase

• Protease

• Amylase

What chemical tests for the presence of starch?

• Benedict's solution

• Biuret solution

• Ethanol

• Iodine solution

What colour does Benedict's reagent become if the test is positive?

• Blue

• Purple

• A white emulsion

• Brick red

What chemical tests for the presence of protein?

• Iodine solution

• Benedict's solution

• Biuret solution

• Ethanol

What food forms a white emulsion with ethanol and water?

• Simple sugars

• Starch

• Fats

• Protein

What is the function of the large intestine?

• To absorb the products of digestion

• To continue the digestion of protein, carbohydrates and fats

• To release enzymes

• To absorb water