The inner membrane is a membrane (phospholipid bilayer) of an organelle that is within the outer membrane. The inner membrane is present within the mitochondria and the chloroplast of cells. Schematic of typical animal cell, showing subcellular components. ... In cell biology, a mitochondrion is an organelle found in the cells of most eukaryotes. ... The inside of a chloroplast Chloroplasts are organelles found in plant cells and eukaryotic algae which conduct photosynthesis. ...
The mitochondrial inner membrane contains many folds known as cristae. These folds allow greater room for the proteins (cytochromes) to function properly and efficiently. The electron transport chain is located on the inner membrane of the mitochondria. It is the energy factory of the cell For More Info, See: Mitochondria File links The following pages link to this file: Mitochondrion ... Cristae are the infoldings of the inner membrane of a mitochondrion. ... In biology, the word matrix is used for the material between animal or plant cells, or generally the material (or tissue) in which more specialized structures are embedded, and also specifically for one part of the mitochondrion. ... In cell biology, a mitochondrion is an organelle found in the cells of most eukaryotes. ... Cristae are the infoldings of the inner membrane of a mitochondrion. ... A representation of the 3D structure of myoglobin, showing coloured alpha helices. ... Cytochromes are generally membrane-bound proteins that contain heme groups and carry out electron transport or catalyse reductive/oxidative reactions. ... The electron transfer chain (also called the electron transport chain, or simply electron transport), is a series of protein complexers and lipid messengers spanning the inner mitochondrial membrane that accepts electrons from electron donors such as NADH or succinate, shuttles these electrons from within the mitochondrial matrix across the inner...
Inner Membrane of Chloroplast
The inner membrane of the chloroplast surrounds the stroma of the chloroplast. Within the stroma are the thylakoids. The inside of a chloroplast Chloroplasts are organelles found in plant cells and eukaryotic algae which conduct photosynthesis. ... Stroma can refer to: 1) The connective supportive framework of a biological cell, tissue, or organ. ... A thylakoid is a phospholipid bilayer membrane internal to chloroplasts. ...
Each membrane is a phospholipid bilayer, between 6 and 8 nm thick, and the two are separated by a gap of 10-20nm, called the intermembrane space.
The outer membrane is permiable to most ions and metabolites, but the innermembrane is highly specialised with transport proteins.
Within the innermembrane, in the region called the stroma, there is a system of interconecting flattened membrane compartments, called the lamellae, or thylakoids.
The machinery in the outer membrane is called the Tom complex (Translocator outer membrane) and that for the innermembrane is called the Tim complex (Translocator InnerMembrane).
Some mitochondrialproteins destined for the innermembrane have a cleavable presequence followed by one or more hydrophobic membrane-spanning segments that function as stop-transfer sequences in the IM or, serve to insert the polypeptide into the IM after it gets in the matrix.
Tim23 is one of the innermembrane translocator proteins.
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