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Carbohydrates

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Carbohydrates 2009-2010 Carbohydrates: OH OH H H HO CH2OH H H H OH O Energy molecules Carbohydrates Building block molecules = sugar sugar sugar sugar sugar sugar ... – PowerPoint PPT presentation

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Title: Carbohydrates


1
Carbohydrates
2
Carbohydrates
Energy molecules
3
Carbohydrates
  • Building block molecules

sugars
sugar - sugar - sugar - sugar - sugar
4
Carbohydrates
  • Function
  • quick energy
  • energy storage
  • structure
  • cell wall in plants
  • Examples
  • sugars
  • starches
  • cellulose (cell wall)

glucoseC6H12O6
starch
5
Sugars building blocks
-ose
  • Names for sugars usually end in
  • glucose
  • fructose
  • sucrose
  • maltose

6
Building carbohydrates
  • Synthesis

1 sugar monosaccharide
2 sugars disaccharide
Dehydration synthesis
glucose
glucose
maltose
mono one saccharide sugar di two
7
Building carbohydrates
  • Synthesis

1 sugar monosaccharide
2 sugars disaccharide
sucrose (table sugar)
fructose
glucose
How sweetit is!
8
BIG carbohydrates
  • Polysaccharides
  • large carbohydrates
  • starch
  • energy storage in plants
  • potatoes
  • glycogen
  • energy storage in animals
  • in liver muscles
  • cellulose
  • structure in plants
  • cell walls
  • chitin
  • structure in arthropods fungi
  • exoskeleton

poly many
9
Building BIG carbohydrates
polysaccharide
glucose glucose glucose
starch (plant)
energystorage
glycogen (animal)
10
Digesting starch vs. cellulose
starcheasy todigest
cellulosehard todigest
11
Cellulose
  • Cell walls in plants
  • herbivores can digest cellulose well
  • most carnivores cannot digest cellulose
  • thats why they eat meat to get their energy
    nutrients
  • cellulose roughage
  • stays undigested
  • keeps material moving in your intestines

12
  • Different Diets of Herbivores
  • Cow
  • can digest cellulose well no need to eat other
    sugars
  • Gorilla
  • cant digest cellulose well must add another
    sugar source, like fruit to diet

13
Helpful bacteria
  • How can cows digest cellulose so well?
  • BACTERIA live in their stomachs help digest
    cellulose-rich (grass) meals

EeeewChewingcud?
14
EAT
X
  • Lets build some
  • Carbohydrates!

15
Activities
  • building starch by bonding together paper glucose
    molecules
  • eat carrots, celery, cookies
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