Bio 9 - Enzymes

Which of the following terms describe enzymes?

• Protein

• Reactant

• Catalyst

• Product

• Lipid

Enzymes _____ the rate of chemical reactions in cells

Choose the correct statement

• An enzyme can only bind to specific substrates

• An enzyme is used up in a chemical reaction

Choose the correct statement

• New reactants are formed during an enzyme catalysed reaction

• During an enzyme catalysed reaction, the substrate binds to the active site

This graph shows the effect of .... on enzyme activity

Above 40*C, the enzyme is...

• Denatured

• Saturated

• Colliding

• Burnt

As temperature approaches optimum...

• the enzyme becomes denatured

• more enzyme-substrate collisions happen

• the enzymes and substrates slow down

• rate of reaction decreases

Which enzyme digests starch into glucose?

• Amlyase

• Catalase

• Lipase

• Protease

Which enzyme digests proteins into amino acids?

• Amlyase

• Catalase

• Lipase

• Protease

From where in the digestive system are lipases secreted?

• Salivary glands

• Liver

• Pancreas

• Stomach