1. The Biochemistry of Photosynthesis

2. Adenosine triphosphate Adenosine triphosphate, or ATP, is an important molecule found in all living cells. It readily diffuses around the cell and provides energy for cellular processes. ATP releases energy in the light-independent reaction when a bond between inorganic phosphate groups is broken, producing ADP and an inorganic phosphate group. adenine ribose 3 phosphate groups ATP is made in the light-dependent reaction in photosynthesis from adenosine diphosphate (ADP) and an inorganic phosphate group (P i ). This requires energy.

3. Adding a phosphate molecule is phosphorylation. In this case, light is used as an energy source so the process is called photophosphorylation. In the light-dependent reaction: +  + energy In the light-independent reaction: The use of water makes this a hydrolysis reaction. Photophosphorylation and hydrolysis ADPATP + energy+  H2OH2O ADPATP

4. NADP and NADPH Nicotinamide adenine dinucleotide phosphate (NADP) is a coenzyme involved in the photosynthesis reactions. The compound is a dinucleotide, containing an adenine base and a nicotinamide base. The nucleotides are joined through their phosphate groups. In addition there is an extra phosphate on the ribose of the adenine-containing nucleotide. NADP can accept electrons to be reduced to reduced NADP, often called NADPH. NADPH can be oxidized back to NADP, releasing electrons. nicotinamide adenine ribose

5. Which molecule?