Presentation on theme: "C ELLULAR R ESPIRATION. Cellular Respiration is almost the exact opposite process of photosynthesis. The reaction for Cellular Respiration follows: C."— Presentation transcript:
C ELLULAR R ESPIRATION
Cellular Respiration is almost the exact opposite process of photosynthesis. The reaction for Cellular Respiration follows: C 6 H 12 O 6 + H 2 O 6CO 2 + 6H 2 O + Energy
S TAGES OF C ELLULAR R ESPIRATION Stage 1: Glycolysis Stage 2: Aerobic Respiration
G LYCOLYSIS Anaerobic Process – does not require oxygen Glucose is broken down in the cytoplasm Two molecules of ATP and NADH are formed for each glucose molecule broken down
G LYCOLYSIS ( CONTINUED ) The NADH are converted into Pyruvate molecules Why is the net gain two ATP molecules instead of four in the process?
A EROBIC R ESPIRATION There are two parts of Aerobic Respiration: Kreb Cycle Electron Transport
K REB C YCLE Pyruvate reacts with oxygen to give off energy and form carbon dioxide Also known as the citric acid cycle
E LECTRON T RANSPORT Where most ATP is produced High energy electrons and hydrogen ions from the Kreb cycle are used to convert ADP to ATP What is different for cellular respiration in prokaryotics?
A NAEROBIC R ESPIRATION Respiration in the absence of oxygen Fermentation – glycolysis in the absence of oxygen Lactic Acid Fermentation Alcohol Fermentation
L ACTIC A CID F ERMENTATION Enzymes convert pyruvate into lactic acid Occurs in human cells Used by microorganisms that produce foods (cheese, yogurt, sour cream)
A LCOHOL F ERMENTATION Pyruvate converted to ethyl alcohol and carbon dioxide Occurs in yeast and some bacteria