Species turnover on islands is generally low - The number of species on an island might remain the same, but the composition of the species should change continuously as new species colonize the island and others become extinct.

TLS Online TPP Program

#Id: 7877

#Unit 2. Cellular Organization

The cristae’s membranes are the site of ATP synthesis thus the invaginations increase the mitochondrion’s capacity to generate ATP.

TLS Online TPP Program

#Id: 7878

#Unit 2. Cellular Organization

Crista junction

The connection between the inner boundary membrane and a crista

TLS Online TPP Program

#Id: 7879

#Unit 2. Cellular Organization

The curvature of the crista junctions is due to a protein complex called MICOS (mitochondrial contact site and cristae organizing system).

TLS Online TPP Program

#Id: 7880

#Unit 2. Cellular Organization

MICOS has an integral membrane protein subunit that homo-oligomerizes and bends the inner membrane to produce high curvature.

TLS Online TPP Program

#Id: 7881

#Unit 2. Cellular Organization

MICOS mediates close juxtaposition of the outer membrane and inner membrane by binding to outer membrane–associated proteins

TLS Online TPP Program

#Id: 7882

#Unit 2. Cellular Organization

The binding partners for MICOS in the outer membrane are Tom and SAM protein complexes, (involved in import of proteins into the mitochondria).