Cellular Respiration Cellular Respiration A process that uses

Cellular Respiration

Cellular Respiration A process that uses energy extracted from macromolecules (glucose) to produce energy (ATP) carbon dioxide (CO 2) and water (H 2 O). The Process requires Oxygen. C 6 H 12 O 6 + 6 O 2 6 CO 2 + 6 H 2 O + energy Catabolic or Anabolic? Exergonic or Endergonic?

Questions and Answers What is Respiration for? To produce energy for living organisms In what kinds organisms does cellular respiration take place? ALL Living organisms Animals - Heterotrophs: consumers. Plants - Autotrophs: producers.

Where Does Cellular Respiration Take Place? It actually takes place in two parts of the cell: Glycolysis occurs in the cytoplasm Krebs Cycle & electron transport chain take place in the mitochondria

Review of Mitochondria Structure Smooth outer Membrane Folded inner membrane Folds called Cristae Space inside cristae called the Matrix

The 3 Stages of Cellular Respiration. Glycolysis The Krebs Cycle The Electron Transport Chain

Glycolysis Summary Takes place in the Cytoplasm Glucose split into two smaller molecules (Pyruvic Acid) A little ATP is also produced (2 molecules) Electrons produced.

Krebs Cycle Summary Requires Oxygen (Aerobic) Cyclical series of chemical reactions that produces CO 2 and a little ATP (2 molecules) and electrons. Takes place in matrix of mitochondria.

Electron Transport Chain Summary Occurs Across the Inner Mitochondrial membrane (Cristae) Uses electrons produced in Glycolysis and Krebs stages for energy. Mucho-Uber ATP Produced (32 molecules) H 2 O also produced

Summary of Cellular Respiration

Practice Diagram 1

Practice Diagram 2

It’s Complicated http: //www. johnkyrk. com