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mitochondrion

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Subject: 
Biology
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SocialTags: 
Biology
Membrane biology
Organelles
Cellular respiration
Crista
Mitochondrion
Inner membrane
Cell
Biological membrane
Endoplasmic reticulum
Technology
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mitochondrion

Mitochondria are bounded by a double membrane. Each of these membranes is a?phospholipidbilayer with embedded proteins. The outermost membrane is smooth while the inner membrane has many folds. These folds are called cristae. The folds enhance the "productivity" of cellular respiration by increasing the available surface area. The double membranes divide the mitochondrion into two distinct parts: the intermembrane space and the mitochondrial matrix. The intermembrane space is the narrow part between the two membranes while the mitochondrial matrix is the part enclosed by the innermost membrane. Several of the steps in cellular respiration occur in the matrix due to its high concentration of enzymes.

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