Cellular Respiration By zabdi romero

Chemical Formula

C6H12O6 + 6O2 -> 6CO2 + 6H20 + 38 ATP


Cellular respiration is an aerobic process; requires the use of oxygen

A lot like aerobic exersice


The first step in both cellular respiration and fermentation. Occurs in both with oxygen (aerobic) and without oxygen (anaerobic) pathways

Takes place in the cytoplasm

The cytoplasm is the blue transparent liquid substance

It occurs in all living organisms, prokaryotes and eukaryotes

One glucose molecule is converted to two pyruvate molecules, using 2 ATP while producing 4 ATP and 2 NADH. Some energy carrying molecules are charged up in the process. Oxygen is not required.

Krebs Cycle (Citric Acid Cycle)

The second step in cellular respiration and takes place in the matrix of mitochondria

  • Pyruvic acid is broken down into carbon dioxide
  • 3 more NADH are made
  • 2 FADH2 are made
  • Releases 2 more ATP
  • Is used by all aerobic organisms to release stored energy through oxidation

Electron Transport Chain

Occurs in the cristae of the mitochondria

  • NADH and FADH2 are used
  • High energy electrons that came from Krebs cycle are used to convert ADP into ATP
  • Oxygen is a reactant and water a product
  • Enables anaerobic bacteria to use nonfermentable molecules as their major source of energy

Inputs: NADH, FADH2, ATP, and Oxygen

Outputs (products): ATP and H20

ATP Production

  • Glycolysis: 2 ATP
  • Krebs Cycle: 2 ATP
  • Electron Transport Chain: 34 ATP

Local and Global Perspective

Cellular respiration is important because it provides the energy for living organisms to preforms all of the other necessary functions to maintain life.

Work Cited

"CK-12 PLIX Series." CK-12 PLIX Series. N.p., n.d. Web. 20 Jan. 2017.

"Citric acid cycle." Wikipedia. Wikimedia Foundation, n.d. Web. 20 Jan. 2017.

Alberts, Bruce. "The Evolution of Electron-Transport Chains." Molecular Biology of the Cell. 4th edition. U.S. National Library of Medicine, 01 Jan. 1970. Web. 21 Jan. 2017.

"Chapter 4A Inputs and Outputs/Photo and Cellular Respiration." Chapter 4A Inputs and Outputs/Photo and Cellular Respiration Flashcards | Quizlet. N.p., n.d. Web. 21 Jan. 2017.

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