Cellular Respiration Timeline
Glycolysis-->Krebs Cycle/Citric Acid Cycle---> Electron Transport Chain
What does Glucose do in CR?
It starts cellular respiration. Its a 6C molecule that gets split into 2 Pyruvate 3C Molecules
What is Acetyl CoA?
Its the Enzyme that moves the Krebs Cycle
3 Parts of Mitochondria
Where does Glycolysis occur?
In the Cytoplasm of a cell
What occurs in the Matrix of the Mitochondria?
The Krebs' Cycle
What is the Membrane of the Mitochondria?
Outer film where the Electron Transport Chain occurs
Explain the roles of NADH and FADH in cellular respiration
NADH and FADH are used to help carry the high energy electrons throughout cellular respiration. They help to produce the bulk of the ATP that cellular respiration yields.
Describe the significance of oxygen in aerobic cellular respration.
Oxygen is the most important thing in cellular respiration. Without oxygen cellular respiration wouldn't occur. The Krebs' Cycle and the Electron Transport chain are aerobic so oxygen is required
What is anaerobic cellular respiration? Give an example
Cellular respiration that doesn't require oxygen. Glycolysis and Fermentation
What is aerobic cellular respiration? Give an example.
Cellular Respiration that requires oxygen. Krebs' Cycle and Electron Transport Chain
Compare and contrast aerobic and anaerobic cellular respiration
Aerobic: Requires oxygen, Creates more ATP per glucose, more efficient, Krebs Cycle & Electron Transport Chain use.
Anaerobic: Doesn't require oxygen. Creates less ATP. Less efficient. Glycolysis and Fermentation
Both: Release energy, breakdown nutrients, byproducts, occurs in cells.
The Carbon Dioxide released in the process of CR in the atmosphere is used in photosynthesis, they're basically opposite processes
Goal: to use energy found in food to convert to ATP to be used by body.
Transfer of Phosphate groups to ATP
Movement of Ions across a selectively permeable membrane, from a high to low concentration
Found in the inter compartments of the inner membrane of the mitochondria
Fluid area of the Mitochondria where the Krebs Cycle occurs
- Put 2 ATP in
- Begins with Glucose Breakdown (a 6 Carbon Sugar) C6 H12 O6
- Broken down then produces 2 Pyruvic Acids (3C)
-Makes 4 ATP
- Net Gain of 2 ATPS
-Occurs in the Cytoplasm
- NAD+ goes to NADH and H+
- Coenzyme A comes in to make Acetyl Coenzyme A
Detour Step: Fermentation
- Anaerobic Process (no oxygen)
- If no mitochondria/oxygen USE THIS
-Humans don't do this.
-Creates Lactic Acid (used in muscles)
-Ethanol (Alcoholic Fermentation)
How many times will the Krebs cycle move for every glucose molecules?
2) Krebs Cycle/Citric Acid Cycle
-Take in Acetyl CoA
-Occurs in Mitochondrion Matrix
-Creates 2 ATP, 3 FADH, and 6 NADH
3) Electron Transport Chain & Oxidative Phosphorylation
- All molecules used
- Electrons dropped off (move through Proteins)
- Protons are pushed through proteins (by electrons)
- Electrons drop off and make water
- ATP synthase= proteins are pumped through by power of protons going back to mitochondria to make ATP
- Makes 32 ATPs=36 total ATPS
-Occurs in Mitochondrial Membrane