In this situation, translation begins at the 5' end of the mRNA while the 3' end is still attached to DNA. In all types of cells, the ribosome is composed of two subunits: the large (50S) subunit and the small (30S) subunit (S, for svedberg unit, is a measure of sedimentation velocity and, therefore, mass).
The most common types of nuclear power plants use water for cooling in two ways: 1  To convey heat from the reactor core to the steam turbines. 2  To remove and dump surplus heat from this steam circuit.
It is operated by the state to. provide centralized heating and cooling to 23 state office buildings in downtown Sacramento. The Central Plant is made of: â¢ Chillers - refrigeration machines that provide chilled water to cool the buildings. â¢ Boilers - gas fired industrial water boilers that provide steam to heat the buildings. â¢ Condenser Water System - water is pumped from ground water wells to dissipate heat in the chillers, then the.