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CHM 140
Ch 27
Question | Answer |
---|---|
catabolism | the biochemical pathways that are involved in generating energy by breaking down large nutrient molecules into smaller molecules with the concurrent production of energ |
anabolism | pathways by which biomolecules are synthesized-usually requires energ |
What is the main function of the mitochondria | Responsible for generation of most of the energy for cells |
What is the main function of ribosomes? | Protein Synehtsis |
What is the function of lyosomes? | Contain powerful enzymes which remove and digest damaged cellular components and some unwanted foreign materials as well as assist in digestion of food |
Where in the mitochondria does the citric acid cycle take place? | matrix |
Where in the mitochondrion does oxidative phosphorylation take place? | inner membrane |
What are the 3 components of ATP? | adenine (nitrogen base) sugar (ribose) 3 phosphate groups |
What is the function of NAD+/NADH and FAD/FADH2 in the citric acid cycle and oxidative phosphorylation? | Electron pair and hydrogen ion collectors and transporter |
When food nutrients are broken down, almost all enter the citric acid cycle as what compound | Acetyl CoA |
Write the net equation of the citric acid cycle? | CH3C=OSCoA+GDP+Pi+3NAD+ +FAD+3H20---*2Co2+CoA+1GTP+3NADH+1FADH2+3H+ |
Each NADH formed in the citric acid cycle yields how many ATPs in oxidative phosphorylation? | 3 |
Each FADH2 formed in the citric acid cycle yields how many ATPs in oxidative phosphorylation? | 2 |
Each turn of the citric acid cycle yields how many total ATPs? | 12 |
Write the net equation for oxidative phosphorylation? | O2+4H+ +4E`----*2H2O+ENERGY |
Chemisosmotic Theory | a) pH gradient across inner mitochondrial membrane takes place after Ereleas b) higher concentration H+ outside matrix c) Proton gradient gives driving force to proton translocating ATPase d) PTA uses influx of H+ ions to synthesize ATP from ADP and Pi |