Cell Energy Worksheet
Answer the following questions:
Cellular respiration: • What is cellular respiration and what are its three stages? The main function of cellular respiration is to generate ATP for cellular work; it is the process of harvesting chemical energy from organic fuel and converting it to ATP energy. The three stages of cell respiration include: Glycolysis, Citric Acid Cycle, and Electron Transport(Simon, Reece, & Dickery, 2010). • What is the role of glycolysis? Include the reactants and the products. Where does it occur? In glycolysis, the 6-carbon sugar, glucose, is broken down into two molecules of a 3-carbon molecule called pyruvate. This change is accompanied by a net gain of 2 ATP molecules and 2 NADH molecules. Glycolysis occurs in the cytosol (Simon, Reece, & Dickery, 2010). • What is the role of the citric acid cycle? Include the reactants and the products. Where does it occur? The Citric cycle occurs in the mitochondrial matrix and generates a pool of chemical energy (ATP, NADH, and FADH2) from the oxidation of pyruvate, the end product of glycolysis. Pyruvate is transported into the mitochondria and loses carbon dioxide to form acetyl-CoA, a 2-carbon molecule. When acetyl-CoA is oxidized to carbon dioxide in the Krebs cycle, chemical energy is released and captured in the form of NADH, FADH2, and ATP (Simon, Reece, & Dickery, 2010). • What is the role of the electron transport system? Include the reactants and the products. Where does it occur? The electron transport chain allows the release of the large amount of chemical energy stored in reduced NAD+ (NADH) and reduced FAD (FADH2). The energy released is captured in the form of ATP (3 ATP per NADH and 2 ATP per FADH2). The electron transport chain (ETC) consists of a series of molecules, mostly proteins, embedded in the inner mitochondrial membrane (Simon, Reece, & Dickery, 2010).
Photosynthesis:
• What is the overall goal of



References: Simon, E.J., Reece, J.B., Dickery, J.L., (2010); Campbell Essential biology with physiology, (3rd Ed.), San Francisco, CA: Pearson Benjamin Cummings NASA website (2012) Global warming trends: Retrieved from http://data.giss.nasa.gov/gistemp/graphs/ FRW Group(2012); How does global warming affect our climate?, Retrieved from: http://www.fwrgroup.com.au/global-warming-affect-climate.html

You May Also Find These Documents Helpful

  • Good Essays

    Cell Energy

    • 1140 Words
    • 5 Pages

    Cell Energy SCI/230 9/28/12 Associate Program Material Cell Energy Worksheet Answer the following questions: * Cellular respiration: * What is cellular respiration and what are its three stages? * * Cellular respiration is the multi-step process in which oxygen is transformed within cells * producing carbon dioxide, the process purpose is transforming fuel intake into energy for cells. The three stages are glycolysis, citric acid cycle, and oxidative phosphorylation…

    • 1140 Words
    • 5 Pages
    Good Essays
  • Good Essays

    cell energy

    • 475 Words
    • 3 Pages

    Associate Program Material Cell Energy Worksheet Answer the following questions: Cellular respiration: What is cellular respiration and what are its three stages? Cellular respiration is the complete cycle of a glucose molecule that happens to be using oxygen. The three stages of cellular respiration are: Glycosis, the Krebs cycle, and the electron transport chain. What is the role of glycolysis? Include the reactants and the products. Where does it occur? Glycolysis is the…

    • 475 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Cell Energy

    • 810 Words
    • 4 Pages

    Associate Program Material Cell Energy Worksheet Answer the following questions: Cellular respiration: • What is cellular respiration and what are its three stages? Cellular respiration is the aerobic harvesting of energy from food molecules. The first stage of cellular respiration is Glycolysis. The second stage of cellular respiration is the citric acid cycle. Lastly, the third stage of cellular respiration is the electron transport. • What is the role of glycolysis? Include…

    • 810 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Cell Energy

    • 520 Words
    • 3 Pages

    Associate Program Material Cell Energy Worksheet Answer the following questions: Cellular respiration: • What is cellular respiration and what are its three stages? Cellular respiration is the process that breaks down food to use as energy. The three main stages are glycolysis, citric acid cycle, and electron transport (Simon, Reece, & Dickey, 2010). • What is the role of glycolysis? Include the reactants and the products. Where does it occur? During glycolysis, a team…

    • 520 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Cell Energy Worksheet

    • 504 Words
    • 3 Pages

    Associate Program Material Cell Energy Worksheet Answer the following questions: Cellular respiration: • What is cellular respiration and what are its three stages? Cellular respiration is the process by which cells harvest energy that is stored in food. The three stages are glycolysis, citric acid cycle, and electron transport. • What is the role of glycolysis? Include the reactants and the products. Where does it occur? Glycolysis which mean splitting…

    • 504 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    AIU Energy, Metabolism, and Cells- Unit 2-IP April 1, 2012 Professor Kelli Roberts Energy, Metabolism, and Cells Photosynthesis is the process that pretty much every organism on earth needs, because of the nutrients produced which is needed in order to live. Plants capture the energy from the sun and converts it into food that is needed by all plants and animals (including us as humans). In this process the chemical reaction which is known as photosynthesis, it takes the sun’s energy and…

    • 574 Words
    • 3 Pages
    Satisfactory Essays
  • Better Essays

    Cell Energy Worksheet

    • 1063 Words
    • 5 Pages

    Associate Program Material – Heather Earnhardt Cell Energy Worksheet Answer the following questions: Cellular respiration: What is cellular respiration and what are its three stages? Cellular respiration is the process by which electrons are transferred between glucose to coenzymes and then to oxygen. NTP is made by the relocation of electrons. The end result of the process is the carbon dioxide and water that are released as byproducts of the process. The three…

    • 1063 Words
    • 5 Pages
    Better Essays
  • Good Essays

    Cell Energy Worksheet

    • 628 Words
    • 3 Pages

    Associate Program Material Cell Energy Worksheet Cellular Respiration: • What is cellular respiration and what are its three stages? 1. Glycolysis 2. Krebs Cycle (Citric Acid Cycle) 3. Electron Transport Chain |Cellular Respiration | | |Role…

    • 628 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

     Cells are set up to use small increments of energy. It set up to use molecules called ATP ADP +Pi ( is considered as added energy that goes to ATP when energy is released and then back aground to ADP. It’s a cycle that keeps recycling in order for energy to be produced and then released. Energy is added to form ATP and when ATP is broken down energy is again released. Energy is released in a way that the cells can use.  (b) Explain how these characteristics are functionally important for…

    • 202 Words
    • 1 Page
    Satisfactory Essays
  • Powerful Essays

    How Cells Harvest Energy

    • 2051 Words
    • 9 Pages

    CHAPTER 7 LECTURE SLIDES Respiration • Organisms can be classified based on how they obtain energy: • Autotrophs – Able to produce their own organic molecules through photosynthesis • Heterotrophs – Live on organic compounds produced by other organisms • All organisms use cellular respiration to extract energy from organic molecules Cellular respiration • Digestion – enzymes breaking down large macromolecules into smaller ones. • Cellular respiration is a series of reactions…

    • 2051 Words
    • 9 Pages
    Powerful Essays