and what does the other membrane consist?
It contains more than 151 different polypeptides, and has a very high protein-to-phospholipid ratio.
Mitochondrion
It contains more than 151 different polypeptides, and has a very high protein-to-phospholipid ratio (more than 3:1 by weight, which is about 1 protein for 15 phospholipids).
where is the mitochondria located in an animal cell UNANSWERABLE what is the main topic in discussion? Mitochondrion. what is it's structural composition? They contains outer and inner membranes composed of phospholipid bilayers and proteins, that have different properties. Because of this double-membraned organization, there are five distinct parts to a mitochondrion. what does the first membrane mentioned consist of? It contains large numbers of integral membrane proteins called porins.
wiki:25646207
Mitochondrion [SEP] Inner membrane
Unlike the outer membrane, the inner membrane does not contain porins, and is highly impermeable to all molecules. Almost all ions and molecules require special membrane transporters to enter or exit the matrix. Proteins are ferried into the matrix via the translocase of the inner membrane (TIM) complex or via Oxa1. In addition, there is a membrane potential across the inner membrane, formed by the action of the enzymes of the electron transport chain. Inner membrane fusion is mediated by the inner membrane protein OPA1.