Cellular Ener g yNeeds        Biology    Mr. Hildebrandt
All Living Cells NeedEnergy  Cells either make   their own food   (glucose) or obtain it.  Autotrophic cells   convert s...
Energy StorageMolecules            Glucose is turned             into energy storage             molecules called        ...
Chemical Reactions Reactants – substances that enter a  reaction. They are changed. Products – substances left after the...
PhotosyntheticPigments Pigments are chemicals  that absorb light. Chlorophyll (A and B)  Primary pigments, green  in col...
PhotosynthesisExplained            Takes place in             Chromoplasts within             autotrophic cells.         ...
light6CO 2 + 6H 2 O       C 6 H 12 O 6 + 6O 2
Cellular RespirationExplained Process that releases energy (ATP)  by breaking down glucose Takes place in cells     mito...
Types of CellularRespiration Aerobic (sufficient O2) – very effective, 36 ATPs produced from one glucose: C6H12O6 + 6O2  ...
Cellular energy needs
Upcoming SlideShare
Loading in …5
×

Cellular energy needs

657 views
374 views

Published on

This slideshow is intended for students in Mr. Hildebrandt's biology classes.

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
657
On SlideShare
0
From Embeds
0
Number of Embeds
32
Actions
Shares
0
Downloads
9
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Cellular energy needs

  1. 1. Cellular Ener g yNeeds Biology Mr. Hildebrandt
  2. 2. All Living Cells NeedEnergy  Cells either make their own food (glucose) or obtain it.  Autotrophic cells convert sunlight into glucose  Heterotrophic cells have to obtain glucose by other means.
  3. 3. Energy StorageMolecules  Glucose is turned into energy storage molecules called ATP.  ATP = Adenosine Triphosphate  When a phosphate group is broken off, energy is released
  4. 4. Chemical Reactions Reactants – substances that enter a reaction. They are changed. Products – substances left after the reaction has taken place. Two chemical reactions are necessary for cells to produce energy: Photosynthesis & Cellular Respiration
  5. 5. PhotosyntheticPigments Pigments are chemicals that absorb light. Chlorophyll (A and B) Primary pigments, green in color. Anthocyanin – red/purple Carotene – orange Xanthophyll - yellow
  6. 6. PhotosynthesisExplained  Takes place in Chromoplasts within autotrophic cells.  Primarily the Chloroplasts  Reactants: Carbon Dioxide & Water  Products: Glucose & Oxygen  Driven by the sun
  7. 7. light6CO 2 + 6H 2 O C 6 H 12 O 6 + 6O 2
  8. 8. Cellular RespirationExplained Process that releases energy (ATP) by breaking down glucose Takes place in cells mitochondria Reactants: glucose & oxygen Products: H20, CO2 & ATP
  9. 9. Types of CellularRespiration Aerobic (sufficient O2) – very effective, 36 ATPs produced from one glucose: C6H12O6 + 6O2 6CO2 + 6H20 + 36 ATP Fermentation (no O2) – not efficient 1. Alcoholic Fermentation: alcohol and C02 are produced 2. Lactic Acid Fermentation: l. acid produced

×