Properly wrapped, salted butter will keep in the freezer for up to one year. After this, it may begin to lose the fresh butter flavour and pick up other odours or flavours from the freezer. Unsalted butter will keep in the freezer for up to three months. Stay Connected.
Light-independent reactions take place in plant chloroplasts. In this process sugars are made from carbon dioxide. The process, known as the Calvin cycle, uses products of the light-dependent reactions (ATP and NADPH) and various enzymes.
The light independent reactions occur in the part of the chloroplast known as the stroma. The purpose of the light independent reactions is to take the energy from ATP and energized electrons and hydrogen ions from NADPH and add them to CO2 to make glucose or sugar.