Chapter 3 Flashcards
1
Q
Organisation and digestive system
A
Specialised cells > Tissue > Organ > System > Organism
Eg.
Muscle cell > Muscle tissue > heart > Circulatory system > human body
2
Q
Parts of the digestive system
A
Mouth Salivary glands Oesophagus Liver Stomach Pancreas Small intestine Large intestine Rectum Anus
3
Q
Functions of bile
A
- Dilutes contents from stomach
- Creates optimum pH
- Contains bile ducts which emulsify fats
4
Q
Enzymes = catalysts
A
Speed up the rate of reactions.
Break down large molecules into small ones
OR
Build large molecules from smaller ones
5
Q
Denatured enzymes
A
High temperature can cause enzymes to denature (incompatible active site)
6
Q
Calculate the rate of reaction
A
rate = 1
—————–
time taken
7
Q
Enzymes in the digestive system
A
- Amylase breaks starch down into glucose
- Protease breaks protein down into amino acids
- Lipase breaks lipids down into fatty acids and glycerol
