At one time it was
thought that bacteria
and other procaryotes were essentially "bags of enzymes" with no
development of the electron microscope in the 1950s revealed the
distinct anatomical features of bacteria and confirmed the suspicion
that they lacked
a nuclear membrane. Procaryotes are cells of
simple construction, especially if compared to eucaryotes. Whereas
cells have a preponderance of organelles with separate cellular
procaryotes carry out all cellular functions as individual units.
A structure depends on the organization's objectives and strategy . In a centralized structure, the top layer of management has most of the decision making power and has tight control over departments and divisions. In a decentralized structure, the decision making power is distributed and the departments and divisions may have different degrees of independence. A company such as Proctor & Gamble that sells multiple products may organize their structure so that groups are divided according to each product and depending on geographical area as well.