Download Light dependent reaction + H2O → H + ATP + O2 Light independent

Unit 4 notes: Photosynthesis
Name: ____________________________________________
Light dependent reaction
Light independent reaction
☼ + H2O  H + ATP + O2
CO2 + H + ATP  C6H12O6
Photosynthesis
☼ + CO2 + H2O  C6H12O6 + O2
Photosynthesis
(chloroplast)
☼ + CO2 + H2O  C6H12O6 + O2
reactants
Cellular respiration (mitochondria)
products
C6H12O6 + O2  CO2 + H2O + ATP
reactants
products
Plants obtain glucose and oxygen from the process of photosynthesis.
Plants may reuse CO2, H2O, and ATP for photosynthesis, growth, and reproduction.
Animals obtain glucose from eating & oxygen by breathing.
Animals will release CO2 + H2O by breathing and use ATP to power the cells of the organism.
Unit 4 notes: Photosynthesis
Name: ____________________________________________
PHOTOSYNTHESIS
Chemical Equation
☼ + 6CO2 + 6H2O  C6H12O6 + 6O2
Light – Dependent Reaction
Location: thylakoid
Occurs when light is present.
Organelle: Chloroplast
Chlorophyll: Captures energy from light. Gives plants their green color.
Light – INdependent Reaction
Dark Reaction / Calvin Cycle
Location: stroma
Occurs with no light. Relies on
light dependent reaction.
Main Idea
Main Idea
Make ATP and oxygen from
water and light
Make glucose from hydrogen,
carbon dioxide & ATP
H2O is split causing an ATP
molecule to form & release O2.
The H from the water and the
ATP is used in the next reaction.
CO2 is split, rearranged, &
bonded to H to make a 3-carbon
compound. This uses the ATP
from the last reaction. The 3
carbon compounds are joined
making C6H12O6
Reaction Details
Reaction Details
☼ + H2O  H + ATP + O2
CO2 + H + ATP  C6H12O6
Glucose: C6H12O6
Summary
 Photosynthesis is the process of converting light, carbon
dioxide, and water into glucose and oxygen.
 Glucose, a carbohydrate, can be stored as a starch for use later
or be used to make cellulose for the cell walls of the plant.
 In a plant the glucose is known as sap. It is transported around
the plant via tubes called phloem.
 Glucose is later converted into ATP in the mitochondria by the
process of cellular respiration.