How does light-dependent reactions produce ATP?
The hydrogen ions build up in high concentration in the lumen of the thylakoid. They pass through an enzyme called ATP synthase, and their movement provides the energy needed to add a third phosphate to ADP (adenosine diphosphate) to form ATP (adenosine triphosphate).
Which best describes light-independent reactions?
Light-independent reaction is a series of biochemical reactions in photosynthesis not requiring light to proceed, and ultimately produce organic molecules from carbon dioxide. The energy released from ATP (produced during the light reactions) drives this metabolic pathway.
What are 2 reactants that are used in the light reaction?
During photosynthesis, light energy converts carbon dioxide and water (the reactants) into glucose and oxygen (the products).
What are the steps of light reaction?
The light-independent reactions of the Calvin cycle can be organized into three basic stages: fixation, reduction, and regeneration.
What is the order of light-dependent reactions?
The light-dependent reactions involve two photosytems (II and I) and an electron transport chain that are all embedded in the thylakoid membrane. Light that is harvested from PSII causes an excited electron of the chlorophyll a special pair to be passed down an electron transport chain (Pq, Cyt, and Pc) to PSI.
What are the reactants of light-dependent reactions?
Light dependent reactions convert solar energy to chemical energy (in the form of ATP and NADPH). Sunlight and H2O are the reactant of the light dependent reaction. The sunlight is captured by photosystem II, and is used to excite electrons.
What does light-dependent reactions produce?
The main function of light-dependent reactions of photosynthesis is to produce ATP molecules through oxidation-reduction reactions and chemiosmosis reactions in chloroplasts.
What are the end product of light dependent reaction?
The end products are ATP and NADPH. Glucose is the end product. ATP and NADPH help in the formation of glucose.