Carbs some facts Examples Sugars starch cellulose glycogen chitin Composition Carbo hydrates C H 2 0 1 2 1 Carbon Hydrogen and Oxygen in a 121 ratio ID: 755812
Download Presentation The PPT/PDF document "CARBOHYDRATES L3 Biology" is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
Slide1
CARBOHYDRATES
L3 BiologySlide2
Carbs – some facts
Examples
Sugars, starch, cellulose, glycogen, chitin
Composition
Carbo
hydrates
C
H
2
0
1
:
2
:
1
Carbon, Hydrogen and Oxygen in a 1:2:1 ratioSlide3
Carb?
C
6
H
12
O
6
GalactoseSlide4
STATION 1: The Floating Can
Mountain Dew contains
46 grams
of carbohydrate (sugar).
> DENSE THAN H
20!-SINKS- Diet Mountain Dew contains 0 grams of carbohydrate.
W/gas = < DENSE THAN H2o!-FLOATS-
NYC CAMPAIGNSlide5
STATION
2:
Same Formula + Different Structure = Different Molecule!
Glucose:
C
6H12O6
Fructose: C6
H12O6Same Molecule? Same Taste?NO! Different Properties!!Slide6
Carbs – Simple Sugars
Root for
carb
unit =
saccharide
Single
carb
unit =
mono
SACCHARIDE
=
mono
mer
Sugars end in -OSE
GLUC
OSE
FRUCT
OSE
C
C
C
C
C
C
C
C
C
C
6
H
12
O
6
ISOMERSSlide7
Carbs – Simple Sugars
Root for carbs =
saccharide
Double
carb
unit =
DI
saccharides
SUCR
OSE
GLUCOSE
FRUCTOSESlide8
Carbs – Simple Sugars
Root for carbs =
saccharide
Double
carb
unit = Di
saccharides
SUCR
OSE
–
TABLE SUGAR
H
2
OSlide9
STATION 3:
Energy Drinks
Better for energy?
Better for taste?
Gatorade = SUCR
OSE & DEXTROSE(GLUC
OSE!)Powerade = FRUCTOSE
GLUCOSE
FRUCTOSE
SUCROSESlide10
STATION 3:
Energy Drinks
Better for energy?
Better for taste?
Gatorade = SUCR
OSE & DEXTROSE(GLUC
OSE!)Powerade = FRUCTOSE
GLUCOSE
FRUCTOSE
SUCROSE
HYDROLYSIS
MUST BE
REARRANGEDSlide11
STATION 3:
Energy Drinks
Better for energy?
Better for taste?
Gatorade = SUCR
OSE & DEXTROSE(GLUC
OSE!)Powerade = FRUCTOSE
GLUCOSE
FRUCTOSE
SUCROSESlide12
Carbs – Complex
Root for carbs =
saccharide
Multiple
carb
units =
POLY
saccharides
Ex/ Starch – breads, potatoes, crackers
POLY
saccharides
=
POLY
mers
Many repeating units of…
mono
saccharides
.
StarchSlide13
STATION
4:
Crackers & Candy
How did they taste?
Candy = “Sweet”
Mono
and DisaccharidesSIMPLE
SUGARS. They taste sweet!
Cracker = “Bread, “Starchy”
Poly
saccharides
COMPLEX SUGARS
Do
not
taste sweet.
Cracker sweetens as enzymes
break
down Polysaccharides into Simple sugars.REACTION = HYDROLYSISSlide14
STATION 5: Mushrooms,
grassshoppers
and lobsters.
Carbs
– they’re not just sugar
Multiple
carb
units =
POLY
saccharides
Starch, Cellulose, Glycogen, Chitin
Chitin – found in mushrooms, lobsters and insects!Slide15
Carbs – Complex
Root for carbs =
saccharide
Multiple
carb
units =
POLY
saccharides
Starch, Cellulose, Glycogen, Chitin
Cellulose = fiber
Not digested
Starch
Glycogen = short term energy storageSlide16
STATION 6: Carb Reactions
YOUR TURN TO TEACH THE CLASS!Slide17
Do Now:
1) Review the Dehydration Synthesis for Carbohydrates sheet.
2) Work w/a partner
On scrap paper draw 3 glucose molecules coming together to form a polysaccharide.
What reaction takes place?
How many water molecules must come out?
3) Add another molecule of glucose to the end of your polysaccharide.What reaction takes place?
How many additional water molecules must come out?4) If 221 glucose molecules came together – how many total water molecules would have been removed?Slide18
Closing Carbohydrates
Fructose = C
6
H
12
O6 and glucose = C6H
12O6, then what is the chemical formula of sucrose?Do your calculation!C
12H22O11