Digestive system 2

Why do we need food?

• To provide ourselves with energy to carry out  daily activities
• For growth and repair of injured body parts
• To keep us healthy
• All of the above

What are three main nutrients in our food?

• Carbohydrate, fats and protein
• Carbohydrate, fats and vitamin
• Carbohydrate, mineral salts and protein
• vitamin, fats and protein

Which nutrient provide us with energy?

• Protein
• Carbohydrate
• Mineral salt
• Vitamin

Which nutrient provide us with energy and keep us warm?

• Protein
• fats
• Mineral salt
• Vitamin

Which nutrient are needed for growth and repair?

• Protein
• fats
• Mineral salt
• Vitamin

Which nutrient helps our body to prevent disease and keep us healthy?

• Protein
• fats
• Vitamin and Mineral salt
• Carbohydrate

Why must food be digested?

• They are too large to enter the bloodstream
• They are insoluble
• The body cannot make use of food as it is
• all of the above

What is the function of Bile?

• It breaks up large fat droplets into smaller fat droplets. This makes it easier for enzymes to digest fats in the small intestine.
• It breaks up large protein droplets into smaller fat droplets. This makes it easier for enzymes to digest fats in the small intestine.
• It breaks up large carbohydrate droplets into smaller fat droplets. This makes it easier for enzymes to digest fats in the small intestine.

Each enzyme only digests a specific type of nutrient.

• True 
• False

Enzymes are affected by ...................

• pH only
• Temperature only
• pH and Temperature