Cell Respiration Flashcards
What does Cellular Respiration do?
to convert the chemical energy in food (glucose) to chemical energy stored in ATP.
What is the chemical equation for Cellular Respiration?
C6H12O6 + 6O2 🡪 6H2O + 6CO2 + Energy (ATP)
What are the three stages of Cellular Respiration?
First Stage (glycolysis)
Second Stage (Citric Acid/Krebs Cycle)
Third Stage (Electron Transport Chain)
Where does Cellular Respiration take place?
Mitochondria
What does Glycolysis do?
split the 6-carbon molecule of glucose in half to form 2 3-carbon molecules called pyruvate.
Where does Glycolysis occur?
This occurs in the cytoplasm, and requires no oxygen, meaning it is anaerobic.
what does Citric Acid/Krebs Cycle do?
2 pyruvate molecules from glycolysis are chemically converted in this cycle to make 2 ATP (and some NADH and FADH2) Releases carbon dioxide as a waste product
Where does Citric Acid/Krebs Cycle occur?
Mitochondrial Matrix
What does Electron Transport Chain do?
A series of reactions using the electrons and hydrogens formed in the Krebs Cycle
Makes 34 ATP and water (when hydrogen bonds to oxygen)
Where does Electron Transport Chain occur?
Inner Membrane of the Mitochondria
Total ATP Produced
Aerobic Respiration = 36-38 ATP
2 ATP from Glycolysis
2 ATP from Krebs Cycle
34 ATP from Electron Transport Chain
Anaerobic Respiration = 2-4 ATP
What are the 2 main parts of cellular respiration?
Aerobic & Anaerobic
What are 2 types of fermentation?
Lactic Acid & Alcohol
How many ATP have been produced at the end of Aerobic respiration?
36-38 ATP
out of the 3 stages to aerobic respiration which makes the most ATP?
Energy Transport Chain
