The three-dimensional conformation of biomolecules is of the utmost importance in their interactions; for example, in the binding of a substrate (reactant) to the catalytic site of an enzyme (Fig. 3-8), the two molecules must fit each other closely, in a complementary fashion, for biological function.
DD&A stands for Depletion, Depreciation and Amortization. Suggest new definition. This definition appears frequently and is found in the following Acronym Finder categories: Business, finance, etc.
This type of system is often referred to. as a DX system or split system. The âDXâ designation stands for direct expansion and although this term. often refers to an air cooled system, in fact any system that uses refrigerant and an evaporator coil can be. called a DX system.