Carbs
- Created by: Leenaa
- Created on: 28-05-15 20:29
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- Carbs
- Alpha glucose has 'H' on the top - IT IS A MONOSACC
- Formation and breakage of a disaccharide and a polysacchride
- Maltose - disaccharide
- FORMATION
- Undergoes condensation - H2O leaves (OH from one glucose and H from the other) - forms C-O bond
- BREAKAGE
- Undergoes hydrolysis reaction - water breaks the glycosidic bond
- FORMATION
- Polysacc. - Amylose
- More than two monosacc's join - many glycosidic bonds
- Maltose - disaccharide
- Starch (main energy storage material in plants) - ALPHA GLUCOSE
- Plants get energy from glucose - store excess glucose as starch
- Plants break down starch to get the glucose
- STARCH IS A MIXTURE OF TWO POLYSACC. AMYLOSE AND AMYLOPECT
- Amylopectin
- Long, branched, branches for enzymes to break down molecule - quick release of glucose
- Amylose
- Long, unbranched chain of a.g, coiled structure, compact, storage, fit in small space
- Amylopectin
- STARCH IS A MIXTURE OF TWO POLYSACC. AMYLOSE AND AMYLOPECT
- Plants break down starch to get the glucose
- Insoluble in water - doesn't affect water potential - GOOD FOR STORAGE
- Plants get energy from glucose - store excess glucose as starch
- Glycogen (main energy storage in animals) ALPHA GLUCOSE
- Excess glucose stored as glycogen
- Lots of side branches for rapid release of glucose (animals need for activity)
- Compact, good for storage
- Cellulose (major component of cell walls in plants) BETA GLUCOSE
- Long unbranched beta glucose
- Hydrogen bonded cross links to give strength
- Forms microfibrils
- Structural support in plant cell walls
- Forms microfibrils
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