Regulation of metabolism can take place in different compartments in the cell, e.g. in a eukaryotic cell. Compartmentalisation helps to organise diverse or opposing metabolic pathways to take place e.g. mitochondria, in the matrix the TCA cycle takes place and in the inner membrane of the mitochondria the electron transport chain pathway occurs (Bryant Miles, 2003).
Lacerum or lacer from Latin may refer to: In anatomy and medicine: 1  Foramen lacerum, a triangular hole in the base of the skull.  Lacerum segment, a part of the course of the internal carotid artery.
locum tenens. A Latin phrase meaning place-holding, used to mean a person who acts as a temporary substitute for someone else, especially a physician.