A large complex of the mitochondrial outer membrane that mediates transport of proteins into all mitochondrial compartments.

The synthesis by organisms of organic chemical compounds, especially carbohydrates, from carbon dioxide (CO2) using energy obtained from light rather than from the oxidation of chemical compounds.

The transport of protons across a membrane and against an electrochemical gradient, using energy from a source such as ATP hydrolysis, light, or electron transport.

The transport of protons against an electrochemical gradient, using energy from light.

The transport of protons across a membrane to generate an electrochemical gradient (proton-motive force) that powers ATP synthesis.

The chemical reactions and pathways resulting in the formation of ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.

The transport of protons across a membrane to generate an electrochemical gradient (proton-motive force) that powers GTP synthesis.

The transport of protons across a membrane to generate an electrochemical gradient (proton-motive force) that provides energy for the synthesis of ATP or GTP.

OBSOLETE. The process of noncoupled solute translocation or facilitated diffusion.

OBSOLETE. The process of coupled solute translocation in which two solutes equilibrate across an osmotic barrier, the translocation of solute being coupled to the translocation of the other in the opposite direction.

OBSOLETE. The process of solute translocation in which two solutes equilibrate across an osmotic barrier, and the translocation of one solute is coupled to the translocation of the other in the same direction.

OBSOLETE. The passive movement of protons from areas of high proton concentration and electrical potential to areas where concentration and electrical potential are low.

OBSOLETE. (Was not defined before being made obsolete).

The chemical reactions and pathways resulting in the formation of chlorophyll, any compound of magnesium complexed in a porphyrin (tetrapyrrole) ring and which functions as a photosynthetic pigment, from less complex precursors.

The chemical reactions and pathways involving chlorophyll, any compound of magnesium complexed in a porphyrin (tetrapyrrole) ring and which functions as a photosynthetic pigment.

The chemical reactions and pathways resulting in the formation of any member of a large group of derivatives or analogs of porphyrin. Porphyrin consists of a ring of four pyrrole nuclei linked each to the next at their alpha positions through a methine group.

The chemical reactions and pathways resulting in the breakdown of chlorophyll, any compound of magnesium complexed in a porphyrin (tetrapyrrole) ring and which functions as a photosynthetic pigment, into less complex products.

The chemical reactions and pathways resulting in the breakdown of a pigment, any general or particular coloring matter in living organisms, e.g. melanin.