What is cellular respiration? is the process that releases energy in food with the presence of oxygen.
C6H12O6 + 6O2 ------ 6CO2 + 6H2O
Cellular Respiration is a: Catabolic Reaction: A reaction that breaks down molecules (carbohydrates into glucose)
Glycolysis is the process that breaks down glucose into pyruate with two ATP.
Input: Glucose + 2NAD + 2ATP + 4AD + 2Pi Output: 2 Pyruvate + 2NADH + 2ADP+ 4ATP
When glucose comes close with cytosol, enzymes make glucose this happens from the energy of ATP. Once energy is released it makes 4 ATP molecules. Electrons are released and go to molecules of NAD+ making 2 molecules of NADH. 2 Pyruvate are made. This is needed for organisms to sustain life. glycolysis takes place in the cytoplasm. Glycolysis can occur (in all living organisms) in both prokayaryote and eukayote cells. It can occur with and without oxygen. Glycolisis releases a small amount of energy from glucose. It would be an anaerobic reaction because of it not requiring energy.
The Krebs Cycle is a series of chemical reactions that make energy from the process of oxidation of acetate.
Inputs: CoA , NAD + acetyl acid , 2NAD + ADP+P, FAD, NAD+ Outputs: CO2, NADH, Co2, 2NADH, ATP, FADH, NADH, 4c-molecules
The Krebs cycle begins with acetyl- CoA which combines with 6 carbon molecules. After the phase of cis- aconitate the carbon breaks and CO2 is formed. The NAD+ molecule is reduced to NADH. 5 carbon molecule is made. NADH is produced. GTP is eventually made and Succinate is made into FADH2 and NADH is made. Krebs Cycle takes place in the matrix of the mitochrondria by eukaryotic cells.
The Electron Transport Chain is a metabolic reaction were electrons are transferred from electron donors to release energy to form ATP.
Inputs: 10NADH + H + 2FADH2 Outputs: 10NAD + 2FAD , H2O, 34 ATP
The Electron transport chain takes place in the cristae of the mitochronbdria. Most Eukaryote cells can do ETC. The ETC begins when energy from NADH and FADH2 are released and go to the ETC. Once the energy is captured its used to make hydrogen ions in the inner membrane. ETC then pumps the ions across the membrane and matrix. This happens because of ATP sythase. ATP sythase makes ATP from ADP. After electrons are released and go with oxygen to make water. ETC Produces 34 ATP.
CELLULAR RESPIRATION AND THE WORLD
As humans and for animals we need energy to walk, talk, think etc. Cellular respiration allows us to do this. Cellular respiration gives us an anaerobic reaction through the Krebs Cycle and the ETC. Cellular allows people to breath because without cellular respiration glucose couldn't be stored for ATP (energy).
In order for plants or anything living thing to survive it must depend on energy. Cellular Respiration provides that energy. With this energy plant of able to perform the necessary function to maintain life. Single Cells organisms on the hand don't need energy and are able to survive on fermentation and glycolysis.
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