B1 Hierarchy of Structure & Digestive System

Define an organ system.

• Organs which work together to perform a specific function.

• Are groups of tissues performing specific functions

• A group of cells with a similar structure and function.

• The basic building blocks of life.

What is the function of the small intestine?

• absorbs water.

• produces protease, carbohydrase and lipase enzymes, and absorbs nutrients

• churns food

What is the function of the small intestine?

• absorbs water.

• produces protease, carbohydrase and lipase enzymes, and absorbs nutrients

• churns food

What do proteases do?

• Break lipids (fats) down into fatty acids and glycerol.

• Break proteins down into amino acids.

• carbohydrase that breaks starch down into simple sugars

What are enzymes and what are they made of?

• breaks starch down into simple sugars

• Enzymes are biological catalysts made from fatty acids

• Enzymes are biological catalysts made from protein.

What does denature mean?

• When an enzyme's active site gets too hot

• When an enzyme's active site changes its shape. This stops it from working.

• When an enzyme's active site changes its shape. This makes the enzyme work faster.