Where the processes take place:
Photosynthesis takes place in the Chloroplast.
- Light Dependent Reactions occur in the thylakoid of the chloroplast.
- Light Independent Reactions occur in the stroma of the chloroplast.
- Light Dependent Reactions occur in the thylakoid of the chloroplast.
- Light Independent Reactions occur in the stroma of the chloroplast.
Respiration takes place in all living organisms.
Glycolysis and anaerobic respiration occur in the cytoplasm.
Aerobic respiration occurs in the mitochondria.
Chemical Equations for Light and Dark Reactions (Photosynthesis)
Light Dependent Reactions: Water + Light Energy = ATP + NADPH + O2
Light Dependent Reactions of photosynthesis convert light energy into chemical energy. When water is split it will produce NADPH, ATP, and Oxygen. This reaction occurs in the thylakoids of the chloroplasts. The products of this reaction, ATP, NADPH, and Oxygen are both required for the light independent reactions.
Light Independent Reactions (Dark Reactions or Calvin Cycle): 6O2 + 12NADPH + 6ATP = C6H12O6
In each cycle turn, we use energy NADPH and ATP to break apart the CO2. We take on carbon from CO2 and the oxygen gets let go. After 6 turns of the cycle, one molecule of glucose has been produced.
Overall Equation: 6H2O + 6CO2 + Light = C6H12O6 + 6O2
Light Dependent Reactions of photosynthesis convert light energy into chemical energy. When water is split it will produce NADPH, ATP, and Oxygen. This reaction occurs in the thylakoids of the chloroplasts. The products of this reaction, ATP, NADPH, and Oxygen are both required for the light independent reactions.
Light Independent Reactions (Dark Reactions or Calvin Cycle): 6O2 + 12NADPH + 6ATP = C6H12O6
In each cycle turn, we use energy NADPH and ATP to break apart the CO2. We take on carbon from CO2 and the oxygen gets let go. After 6 turns of the cycle, one molecule of glucose has been produced.
Overall Equation: 6H2O + 6CO2 + Light = C6H12O6 + 6O2
ATP Production (Respiration)
Glycolysis starts both aerobic and anaerobic respiration. Aerobic respiration uses oxygen, therefore it is able to make more ATP. There are three different parts to aerobic respiration; Glycolysis, Krebs cycle, and Electron Transport Chain. The Krebs cycle occurs in the matrix/cristae. This cycle creates 2ATP. The electron transport chain occurs in the I.M space. This chain creates 34 ATP. Glycolysis creates 4ATP but uses 2ATP to get the process started so they are actually only making a net amount of 2ATP. In total, aerobic respiration makes a net amount of 38 ATP.
Anaerobic Respiration/Fermentation occurs in the cytoplasm of cells. Glycolysis and fermentation only make 2ATP per glucose. Fermentation does not make any ATP but it does make NAD+ so glycolysis can continue to make ATP in the absence of oxygen.
Equation of Anaerobic/Glycolysis: Glycol + cyto (where) + NAD(+), glucose, 2ATP (reactants) = 4ATP + 2 p.a (3-C, 3-C)
Carbon Cycle
(How they work together)
In photosynthesis, oxygen is released which is needed for respiration. In respiration, carbon dioxide is released which is needed for photosynthesis. Since photosynthesis requires CO2 and respiration requires oxygen, both cycles feed and depend on each other to keep going.