Photosynthesis and RespirationEnergy Transformation Within Cells
Energy Transactions
ATP and energy storage
ATP provides energy for coupled reactions
Electron carriers (like NAD) provide reducing (bond-making) power (a high energy electron to share in a bond) for coupled reactions
An overview of photosynthesis
The H is sharing a high energy electron that will be used to make a bond. The electron was captured and energized in the light reactions.
The electron will be used to glue the carbons together from CO2 to make new carbon chains: sugar.
An Overview of Photosynthesis
ATP and high energy bonds
Leaf organization - large scale
Leaf organization - subcellular
Inside a Chloroplast
The Light Reactions
Antenna Complexes
Chlorophylls are in membranes
Electromagnetic Spectrum
Absorbtion spectrum of Chlorophyll
The Z-scheme (the light reactions)
Some ATP is made by chemiosmosis
Z-scheme
Some ATP is made by chemiosmosis
The Dark Reactions
Calvin Cycle (the dark reactions)
an overview of metabolism
Photosynthesis and Respiration
Structures requiring lots of energy are mitochondria rich
Glycolysis: Glucose activation and energy harvest
Lactate Fermentation
Alcohol Fermentation
Krebs Cycle and Chemiosmosis occurs in Mitochondria, cont.
Essential reactions in the matrix
Chemiosmosis in Mitochondria
Oxygen removes spent electrons
Summary of Respiration