B7 Digestion Flashcards
Name the body system shown on the diagram
Digestive system
Name five organs found in the digestive system
Oesophagus
Stomach
Liver
Pancreas
Small intestine
Large intestine
What is the purpose of the digestive system?
Breakdown food into small soluble molecules
Absorb digested food into blood
Enzymes are biologiical catalyst.
What does this mean?
Biological - made in cells
Catalyst - Speed up chemical reactions
Name the theory used to explain how enzymes work
Lock and key theory
Name an enzyme that digests carbohydrates
Carbohydrase
or
Amylase
Name the carbohydrase that breaks down starch
Amylase
What is formed when starch is digested?
Simple sugar
or
Glucose
Name the enzyme that digests protein.
Protease
What is formed when proteins are digested?
Amino acids
Name the enzyme that digests lipid
Lipase
What is formed when lipids are digested?
Fatty acids
and
glycerol
Name the organ that makes bile.
Liver
Where is bile stored?
Gall bladder
What is the purpose of bile?
Neutralises hydrochloric acid released in the stomach.
Emulsifies lipid
(forms small droplets of fat to increase the surface area for digestion)
Where is amylase made?
Salivary glands and pancreas