9). In the case of K + and Cl - , the electrical and concentration gradients of molecules work against each other. K + is attracted toward the inside of a cell because of the inside-negative membrane potential, but the moleculeâs concentration gradient works in the other direction.
Directory Definition. The term directory is used in a computer software context to refer to what appears to the user to be a container or folder1 that can hold files and other directories. A file is a named collection of related data that appears to the user as a single, contiguous block of information and that is retained in storage.
Active Directory (AD) is a directory service that Microsoft developed for Windows domain networks and is included in most Windows Server operating systems as a set of processes and services.or example, Lightweight Directory Access Protocol (LDAP), a long-standing directory technology, underpins Active Directory. Also X.500 directories and the Organizational Unit preceded the Active Directory concept that makes use of those methods.