Virtual Lab Journal Response Sheet Date: 11th Feb 2015 Name of Virtual Lab: Energy in a cell Please include the questions. This can be done by highlighting, copying and pasting into the corresponding space What is the importance of the light and dark reactions in photosynthesis? Light Dependent Reaction is the initial stage of Photosynthesis where solar energy is converted into potential energy, the light Dependent Reaction produces oxygen gas and converts ADP and NADP+ into ATP and NADPH .Dark Reaction takes place in Stroma of the chloroplasts in photosynthetic plants, Energy from light are stored has ATP and NADPH .in Calvin cycle this stored energy is used to make sugar molecule, the Calvin cycle is a complex theory of chemical reactions carried out in stroma.