What are 2 functions of bile?
Bile is alkaline, so it neutralises the hydrochloric acid from the stomach. This creates the right pH for the enzymes working in the intestine. As well as this, bile is an emulsifier. It breaks up big droplets of fats into smaller ones, increasing the surface area for lipases to work on, speeding up the digestion of fat.
MT
Related Biology GCSE answers
All answers ▸Explain what an enzyme is and the lock and key hypothesis.
Briefly describe the structure and function of the respiratory system
List two reasons drugs to treat illness are often trialled
A student investigates phototropism in wheat seedlings. She cuts the tips off some of her seedlings. She leaves the seedlings in the window. Two days later the seedlings have bent towards the light. Describe and explain these findings.