During photosynthesis the Suns energy is captured & stored in the form of carbohydrates & other organic molecules
What happens to this stored energy?Most of the stored energy will be used for the life processes of the autotrophSome will be reserved & available to heterotrophs, who in turn, use it for their own life processes
All cells break down complex organic compounds into simpler moleculesCells use some of the energy released to produce ATP from ADP & phosphate
RespirationAll cells break down complex organic compounds into simpler moleculesBreaking down releases energy stored in the molecular bonds of the organic compoundsSome of the energy released to produce ATP from ADP & phosphate
Glycolysis1st phase of cellular respirationProduces ATP & other productsLittle ATP formedOther products will follow one of two additional pathwaysWhich path followed depends on the presence or lack of O2
Glycolyisis a biochemical pathway6 carbon chain molecule broken & 2 STP molecules, through a series of steps, into 2 3 carbon molecules (pyruvic acid molecules) AND 4 molecules of ATP2 ATP used & 4 made !Happens in the cytosol
What happens to the Pyruvic Acid?Depends on whether or not oxygen is present
Where does respiration happen?In the cytosol if no oxygen is present
Where does respiration happen?In the mitochondria if oxygen is present
The Outer Membrane
The outer membrane contains many complexes of integral membrane proteins that form channels through which a variety of molecules and ions move in and out of the mitochondrion.
The Inner MembraneForms the inner folds of the cristae
CristaeCristae are the finger-like projections of the inner mitochondrial membrane and they increase the surface area for the electron tranport carriers and ATP synthase which are located in the membrane.
The matrix contains a complex mixture of soluble enzymes that catalyze the respiration of pyruvic acid and other small organic molecules.