B1.4.1 Photosynthesis

• What are the two main stages of photosynthesis

  Stage 1 : Light dependent stage - energy transferred from the sun splits molecules into oxygen gas and hydrogen ions.

  Stage 2 : Light independent stage - carbon dioxide gas combines with hydrogen ions to make glucose(sugar)
• What is the first stage of photosynthesis reactions

  Stage 1: Light dependent stage - energy transferred from the sun splits molecules into oxygen gas and hydrogen ions.
• What is the second stage of a photosynthesis reaction

  Stage 2: The light independent stage carbon dioxide gas combines with the hydrogen ions to make glucose.
• Uses of glucose

  •Sucrose stored in fruits

  •Makes cellulose for cell wall

  •Used immediately in respiration

  •Stored as starch (insoluble, so doesn't lower water potential of cells and draw water in by osmosis) energy store