Ch.9 Cell Respiration and Fermentation Flashcards
What order does glucose pass through the respiration systems to make ATP when oxygen IS present?
Glycolysis > Pyruvate Processing > Krebs Cycle > Electron Transport > Chemiosmosis
What order of does glucose pass through the respiration systems to make ATP when oxygen IS NOT present?
Glycolysis (pyruvate is formed) > Fermentation (Lactic Acid fermentation)
What are the products of glycolysis?
4 ATP, 2 Pyruvate, 2 NADH
What happens during Pyruvate Processing?
- -Pyruvate is oxidized and combines with CoA to form Acetyl Coa
- -2 CO2 are given off, NADH is formed
What does the Kreb’s cycle require to run?
- -1 Acetyl CoA and Oxaloacetate
- -H2O
- -3 NAD+
- -1 FAD
What does one cycle of the Kreb’s cycle make?
- -Citrate
- -3 NADH
- -1 FADH2
- -2 CO2
- -1 ATP or 1 GTP
What is the purpose of the Electron Transport Chain?
To use high energy electrons to power the pumps to move hydrogens into the intermembrane space, create a proton gradient to power ATP synthase for Chemiosmosis to produce ATP
Why does fermentation happen?
Because there isn’t a better electron acceptor (OXYGEN) present
What is the first step of substrate level phosphorylization?
Glycolysis
What are the energy storing molecules of substrate level phosphorylization?
ATP, NADH, FADH2
How is the Kreb’s cycle started?
Acetyl CoA reacts with Oxaloacetate
Where are protons at the END of the ECT?
Intermembrane Space
Where do protons go, and what do they travel through, to help ATP be created?
- -Protons travel from the Intermembrane Space to the Mitochondrial Matrix
- -They travel through ATP Synthase
Why is oxygen important during cell respiration?
- -It acts as an electron acceptor
- -When oxygen is the final electron acceptor, water is formed
How many ATP does ATP synthase make during Oxidative Phosphorylation per molecule of glucose?
26
