Metabolism: Anabolism/Catabolism

In order to visualize Metabolism (biochemical reactions that occur in living organisms),we made 3D posters to model the reactions that takes place.

Anabolism (photosynthesis)- synthesizing molecules from smaller components in order to store energy, requires energy in the process. (Photons ---> Glucose)

Noncyclic Photophosphorylation (light-dependent):
- P680 absorbs a photon, the excited electron goes to b6-f complex, then to P700 where electrons get excited by photons, then they are used by NADP reductase to reduce NADP+
- Oxygen and NADPH are formed
- can produce ATP

Cyclic Photophosphorylation (light-dependent):
- electron in P700 is excited by a photon, instead of being used to reduce NADP+ like in noncyclic photophosphorylation, electrons from Fd is passed to b6-f complex and back to P700
- no NADPH or oxygen is formed
- can produce more ATP the little NADP is available.






Calvin Cycle (light-independent):
- rubisco fixs CO2 and RuBP (5C) to become 2 PGA (3C)---> 2BPG (3C)---> 2 G3P (3C)
- some G3P are used to make glucose, others recycled (G3Px2---> 1 glucose)
- uses ATP and NADPH













Catabolism (celluar respiration)- breaking down complex molecules into smaller units, releasing energy in the process. (Glucose ---> ATP)

Glycolysis:
- Glucose---> Glucose 6-phosphate---> Fructose 6-phosphate---> Fructose 1,6-phosphate ---> Dihydroxyacetone/G3P---> 2 BPG---> 3PG---> 2PG---> 2 PEP---> 2 pyruvate
- 2 ATP consumes, 4 ATP produced, 2 H2O produced













Kreb's Cycle:
- OXAL (4C)+Acetyl-CoA (2C)---> CIT(6C)---> ISO (6C)---> alphaKG (5C)---> Succinyl-CoA (4C)---> SUC (4C)---> FUM (4C)---> MAL (4C)---> OXAL (4C)
- produces 2 ATP, 6 NADH, 2 FADH2













Electron Transport Chain:
- 2H+---> 1 ATP
- NADH passes 2 electrons to NADH dehydrogenase---> bc1 complex---> Cytochrome oxidase complex => 6 H+
1 NADP---> 3 ATP, 24 ATP (2 NADP from glycolysis behaves like FADH2)
- FADH2 passes 2 electrons to bc1 complex---> Cytochrome oxidase complex => 4 H+
1 FADH2---> 2ATP, 8 ATP





Sources:

• Nordqvist, Christian. "What Is Metabolism? How Do Anabolism and Catabolism Affect Body Weight?" Medical News Today. MediLexicon International, 26 Sept. 2014. Web. 10 Nov. 2014.
• Carter-Edwards, Trent. Biology 12. Toronto: McGraw-Hill Ryerson, 2011. Print.