B2- More On Enzymes And Digestion Flashcards
What is the role of enzymes in digestion?
Enzymes catalyse the breakdown of food molecules
Different enzymes are specific to different types of food molecules.
Where are digestive enzymes produced?
Produced by salivary glands, stomach, pancreas, and small intestine
Salivary glands produce amylase, the stomach produces pepsin, the pancreas produces protease, amylase, and lipase.
What enzyme is produced by the salivary glands?
Amylase
Amylase is responsible for breaking down carbohydrates.
What is the function of bile?
Neutralises stomach acid and emulsifies fats
Bile is produced in the liver and stored in the gall bladder.
What are the functions of the stomach in digestion?
Pummels food, produces protease (pepsin), and hydrochloric acid
Hydrochloric acid kills bacteria and provides the right pH for pepsin.
What is the pH level of the stomach for protease enzyme function?
pH 2
This acidic environment is essential for the activity of pepsin.
What is the role of the gall bladder?
Stores bile before it’s released into the small intestine
Bile is crucial for fat digestion.
What is absorbed in the large intestine?
Excess water from food
This process is important for maintaining hydration.
What enzymes does the pancreas produce?
Protease, amylase, and lipase
These enzymes are released into the small intestine to aid digestion.
What occurs in the small intestine?
Produces enzymes and absorbs digested food into the blood
It completes digestion and nutrient absorption.
What is stored in the rectum?
Faeces made up mainly of indigestible food
Faeces are expelled through the anus.
True or False: The digestive system is a continuous tube.
True
The digestive system runs from the mouth to the anus.
Fill in the blank: The enzyme produced in the stomach is called _______.
pepsin
Pepsin is a type of protease that breaks down proteins.
What is the primary role of the small intestine?
Complete digestion and absorption of nutrients
The small intestine is crucial for nutrient assimilation.
