ISA revision
- Created by: Libby Summers
- Created on: 19-03-13 14:10
View mindmap
- ISA - 'the effect of pH on the time taken for amylase to hydrolyse starch
- about amylase
- found on salivary glands
- and pancreas
- class - carbohydrase
- hydrolyse starch into maltose
- Maltose = two glucose
- found on salivary glands
- Starch
- mixture of two polysacharides
- Amylose and amylopectin
- Both composed of long chains of a glucose
- Linked together by glycosidic bonds
- formed in condensation reactions
- Linked together by glycosidic bonds
- when digested...
- broken down to maltose by amylase
- maltose is broken down into a glucose by maltAse
- broken down to maltose by amylase
- Main energy storage in plants
- insoluble in water
- so it doesnt cause water to enter cells
- mixture of two polysacharides
- Test for starch
- Iodine - if starch is present it will go blue/black colour
- Hydrolysis
- Involved in chemical digestion
- polymers in food are insoluble - cant be directly absored into blood stream
- Process of breaking something down into smaller pieces
- does this by adding water
- catalysed by digestive enzymes
- Involved in chemical digestion
- about amylase
Comments
Report