1 / 30

Unlocking Energy: Cellular Respiration Explained

Explore the process of cellular respiration to extract energy from food, understand the basics of glycolysis, Kreb Cycle, and Electron Transport Chain. Learn about redox reactions, ATP synthesis, and the importance of oxygen in this vital metabolic pathway.

orea
Télécharger la présentation

Unlocking Energy: Cellular Respiration Explained

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Cellular Respiration Releasing the Energy from our food!

  2. Concept Review • First Law of Thermodynamics • Covalent bond – • H atom • Redox reactions • NAD/NADH

  3. NAD (empty)  NADH

  4. NAD (ox)  NADH (red)

  5. Nitrogenous Base = Adenine Phosphate groups Contain a lot of potential energy Pentose Sugar = Ribose Adenosine Tri-Phosphate

  6. Hydrolysis of ATP

  7. Why to we need food? • Answer:

  8. Understanding Check • QUESTION:What process do we (and all eukaryotes) use to extract the stored (chemical) energy of food and rebuild molecules of ATP? • Answer:CELLULAR RESPIRATION

  9. Overall Equation for Cellular Respiration? Glucose is oxidized Oxygen is reduced C6H12O6+ 6 O2 6 CO2+ 6 H2O + Energy

  10. Cellular Respiration is Three Metabolic Pathways

  11. Glycolysis

  12. Understanding Check • How many ATPs were “invested” in glycolysis? • How many ATPs were produced? (total) • How many ATPs were produced? (net/ “profit”)

  13. Understanding Check • Was any other energy extracted from glucose? (Explain) • Where are NADHs “cashed in” for ATPs?(Note: The Energy stored in each NADH is enough to regenerate ~ 3 ATPs) • The ETC only operates in the presence of __________?

  14. Synopsis of Glycolysis:

  15. Part II: Kreb Cycle • What is the purpose of the Kreb Cycle? • Where does the Kreb Cycle (aka Citric Acid Cycle aka TCA cycle) occur?

  16. Mitochondrion!

  17. KrebCycle

  18. KrebCycle

  19. Understanding Check • True or False?Your body takes in oxygen gas (O2) and converts it to CO2? • How many ATPs are directly produced in the TCA? • Where else in the energy (formerly in glucose) being temporarily stored?

  20. Electron Transport Chain

  21. Pathwayof ElectronTransport

  22. A Class Demonstration • Yea!

  23. Understanding Check • Why do we need oxgyen to live? • True or False:We breathe in oxygen and convert it to carbon dioxide? • How does cyanide kill you? • Why do you feel SOOO tired when you are running a fever?

  24. More on the “Magic” • But first, let’s talk about micro-brewing…….

  25. For Tomorrow…. • Study for QUIZ on Cellular Respiration • Finish Reading CH 9 • Run Cell Respiration Mentor(Linked to MED’s website) • Good Luck!

  26. Explaining the “Magic”

  27. Creating a Proton Gradient

  28. Using the Proton Gradient

More Related