Bioenergetics Foldable
Fold 3 pieces of paper as follows and label:
How do Cells Make and
Produce Energy?
How do Cells Release
Stored Energy?
How do Cells Make and Produce Energy?
(Part 1: Photosynthesis Foldable)
1.
2.
3.
4.
5.
Photosynthesis Basics
Importance of Pigments
Light Reaction
Dark reaction
Comparison of Photosynthesis &
Respiration
1. Photosynthesis Basics
Define:
Equation:
A process by which an
autotroph (ex. plant) uses the
sun’s energy to make food
(simple sugar= glucose)
6CO2 + 6H2O + sunlight 
C6H12O6 + 6O2
PHOTOSYNTHESIS
Phases:
Simplified:
1. Light Reaction
Production of simple sugar
(glucose = C6H12O6)
2. Dark Reaction
2. Importance of Pigments
• Chloroplasts  contain pigments
Stacks contain
pigment that absorb
light
• Pigments – absorb and reflect light
– Chlorophyll, most common pigment, absorbs
all color of light except GREEN, it reflects it!
– Fall leaves  no chlorophyll
3. Light Reaction
• Depends on light
• End Product =
ATP used in dark
reaction
4. Dark Reaction
• AKA the “Calvin
Cycle”
• Does not depend on
light
• End Result =
GLUCOSE
How do Cells Release Stored Energy?
(Part 2: Cellular Respiration Foldable)
1.
2.
3.
4.
5.
Cell Respiration Basics
Glycolysis
Citric Acid/Krebs Cycle
Electron Transport Chain
Comparison of Photosynthesis &
Respiration
1.Cellular Respiration Basics
Equation:
Define:
A process by which
mitochondria breaks down
food to produce energy
C6H12O6 + 6O2  6CO2 +
6H2O + ATP
Cellular Respiration
Stages:
1. Glycolysis
2. Citric Acid/Krebs Cycle
3. Electron Transport Chain
* All living things undergo cell
respiration, even plants!
2. Glycolysis
• Does not require oxygen
(anaerobic)
• Series of chemical
reactions that break down
glucose into 2 pyruvic
acid molecules
• Starts with 2 ATP
• Produces 4 ATP
• Net ATP = 2ATP
* Not most effective way to
produce energy
3. Citric Acid or Krebs Cylce
• 2nd step of
respiration only
if oxygen is
present
Every turn
produces
1 ATP, 2
CO2
4. Electron Transport Chain
• Step #3 of Cell
Respiration only if
oxygen is
present
• MOST
EFFECTIVE way
to produce ATP
• End result = 32
ATP
Cell Respiration in Review
(Glue to Back)
• Fermentation –
anaerobic
process (no
oxygen) by which
food is broken
down
• Types:
– Lactic Acid
– Alcoholic
5. Comparison of Photosynthesis & Respiration
Word Bank: food production, anaerobic, aerobic, ATP production, light
reaction, energy release, glycolysis, Calvin cycle, light, water as reactant,
water as product, carbon dioxide reactant, carbon dioxide product, glucose
reactant, glucose product, citric acid, electron transport chain, fermentation