Food is the most vital product of the agriculture sector. But there other non-food products critical to the economy generated in this multi-billion dollar industry, including cotton, wool and tobacco. Prior to the Great Depression, government subsidies to the agriculture sector were relatively limited.
Cell theory, first developed in 1839 by Matthias Jakob Schleiden and Theodor Schwann, states that all organisms are composed of one or more cells, that cells are the fundamental unit of structure and function in all living organisms, that all cells come from preexisting cells, and that all cells contain the hereditary information necessary for regulating cell functions and for transmitting information to the next generation of cells.
macromolecules are the proteins that do most of the jobs throughout a cell. they are responsible for every reaction that is catalysed by a enzyme and also for structural proteins such as collagen and histones. anything that requires help doing things around a cell is helped by a protein of some discription.nzymes are proteins that catalyze reactions. Without them, it would take you days to digest a single meal. Proteins in the extracellular matrix hold your cells together to form tissue and then organs. They are present in all your cells.