Changing Ph In The Digestive System

Question 1

Keys point 1

Answer 1

Hydraulic acid gives a stomachal lower PH suitable for the protease secreted there to work effciently

Question 2

Key point 2

Answer 2

Alkaline bile neutralises the acid and gives a high pH for the enzymes from the pancreas and small intestine into work well

Question 3

Key point 3

Answer 3

Bile is not an enzyme as it does not break down fat molecules instead it emulsifies The fat into tiny droplets which increases the surface area for lipase to increase the rate of digestion