Carbohydrates
(„Carbs“)
Types of Carbs
• Monosaccharides – e.g.: Glucose,,fructose
• Disaccharides – e.g.: Maltose, sucrose, lactose
• Polysaccharides – e.g.: Starch, glycogen, chitin
Glucose
• C6H12O6
• A Monosaccharide (single, basic sugar molecule)
• Water soluable, sweet flavour
Sucrose
• Two basic sugar molecules joined together (Glucose + Fructose) -> A disaccharide
• Water soluable, tastes sweet
Starch
• A large number of glucose molecules joined together
• Found in plant cells (produced in chloroplasts after photosynthesis)s
• Two types: water insoluble and water soluble, does not taste sweet
Energy
• Carbs are needed for energy
• 1 gram = 17kJ
• The carbohydrate used in cell respiration is glucose
• Glucose is found in blood plasma, which is transported to the cells
• Plants store carbs if form of starch, animals store carbs in form of glycogen
Food
• Carbs are mostly found in plant based food
• Plants produce their own carbs (through photosynthesis)
• Typical sources are fruits, vegetables,
grains as well as anything with added sugar