8C Enzymes

Hydrolysis uses water to (a)   a bond.

WHich best describes the lock and key model of enzyme action?

• The enzyme active site is complementary to substrate shape.

• The enzyme allosteric site is complementary to substrate shape.

• The enzyme active site is different to substrate shape.

• The enzyme allosteric site is different to substrate shape.

Match the enzymes to their substrates:

• Protein (in small intestine)

• Trypsin

• Triglyceride

• Lipase

• Starch (in mouth)

• Pancreatic amylase

• Protein (in stomach)

• Salivary amylase

• Starch (in small intestine)

• Pepsin

Where in the digestive system does pepsin work best?

• Mouth

• Stomach

• Small intestine

• Colon

When the temperature of an enzyme is​ ​ (a)   it may become denatured. Denaturation changes the​ (b)   of the active site. This makes the enzyme​ (c)  

• decreased
• increased
• shape
• size
• non-functional
• functional