9 1 cellular respiration an overview n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
9.1 Cellular Respiration: An overview PowerPoint Presentation
Download Presentation
9.1 Cellular Respiration: An overview

Loading in 2 Seconds...

play fullscreen
1 / 9

9.1 Cellular Respiration: An overview - PowerPoint PPT Presentation


  • 124 Views
  • Uploaded on

9.1 Cellular Respiration: An overview. I. Chemical Energy and Food. Food provides living things with the chemical building blocks they need to grow and reproduce Cells use fats, proteins and carbs as food Break this food down gradually. II. Overview of Cellular Respiration.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

9.1 Cellular Respiration: An overview


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.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
    Presentation Transcript
    1. 9.1 Cellular Respiration: An overview

    2. I. Chemical Energy and Food • Food provides living things with the chemical building blocks they need to grow and reproduce • Cells use fats, proteins and carbs as food • Break this food down gradually

    3. II. Overview of Cellular Respiration • Cellular respiration is the multi-step process that releases energy from food in the presence of oxygen • Represented as: + + + C6H12O6 Glucose 6O2 Oxygen 6CO2 Carbon dioxide 6H2O Water ENERGY

    4. A. Stages of Cellular Respiration • Cellular respiration captures energy in 3 stages: • Glycolysis • Krebs cycle • Electron transport chain

    5. How does it work? • Glucose enters chemical pathway called glycolysis - Uses some energy to make ATP, rest stored as pyruvic acid • Pyruvic acid enters the Kreb cycle • Most energy is extracted during electron transport chain by using oxygen

    6. B. Oxygen and Energy • Oxygen is required at end of electron transport chain • Aerobic: pathways that require oxygen • Krebs, Electron transport chain • Anaerobic: pathways that do not require oxygen • Glycolysis, Fermentation

    7. Where does this take place? • Glycolysis happens in cytoplasm • The Krebs cycle and Electron transport chain occur in mitochondria

    8. III. Comparing Photosynthesis and Cellular Respiration • Cellular respiration is balanced by photosynthesis • Photosynthesis removes carbon dioxide from atmosphere, cellular respiration adds it • Photosynthesis adds oxygen and cellular respiration uses it to make energy from food

    9. 9.1 Assessment questions • 2a. Write the overall reaction for cellular respiration. • 2b. How does the process of cellular respiration maintain homeostasis at the cellular level? • 3a. In what ways are cellular respiration and photosynthesis considered opposite processes? • 3b. How is the chemical energy in glucose similar to money in a savings account?