Digestive Enzymes

Question 1

What breaks down STARCH?

Answer 1

Amylase

Question 2

What breaks down PROTEINS?

Answer 2

Protease

Question 3

What breaks down LIPIDS?

Answer 3

Lipase

Question 4

What is STARCH broken down into?

Answer 4

Glucose

Question 5

What is PROTEIN broken down into?

Answer 5

Amino acids

Question 6

What are LIPIDS broken down into?

Answer 6

Fatty acids + Glycerol

Question 7

What is GLUCOSE used for?

Answer 7

the substrate for respiration

Question 8

What are AMINO ACIDS used for?

Answer 8

to synthesise proteins

Question 9

What are FATTY ACIDS + GLYCEROL used for?

Answer 9

used for cell membranes, making hormones, insulation, energy stores

Question 10

Where is AMYLASE produced?

Answer 10

salivary glands
pancreas
small intestines

Question 11

Where is PROTEASE produced?

Answer 11

stomach (called pepsin there)
pancreas
small intestines

Question 12

Where is LIPASE produced?

Answer 12

pancreas

small intestines

Question 13

Where is BILE produced and stored and released?

Answer 13

Produced - liver
Stored - gall bladder
Released - small intestines

Question 14

What does BILE do?

Answer 14

EMULSIFIES fats/lipids - to break down into tiny droplets so the surface area increases which increases reaction rate with lipase therefore increasing digestion

NEUTALISES hydrochloric acid from the stomach - usually at pH 1-2 the hydrochloric acid needs to become alkali
Otherwise digestive enzymes would denature and lower reaction rate thus decreasing digestion