Cellular Respiration and the Interdependence of Organ Systems

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Across
  1. 4. Anything composed of atoms and, consequently, has mass and takes up space.
  2. 7. Organ system responsible for transporting digested food molecules to cells around the body.
  3. 9. System of chemical reactions occurring within cells in which the bonds in food and oxygen molecules are broken, new bonds are formed within products; energy from this process is used in condensation reactions to form ATP from ADP and Pi.
  4. 11. Group of fatty or waxy organic molecules found in foods that are made mostly from carbon and hydrogen atom; they include oils, cholesterol and triglycerides.
  5. 13. Term that is used to describe any substance containing carbon-based compounds, especially those produced by or derived from living organisms.
  6. 15. The ability to do work; required to break chemical bonds and released when new chemical bonds form.
  7. 16. Organelles where cellular respiration occurs.
  8. 18. Neutral (uncharged) group of two or more atoms held together by chemical bonds.
  9. 20. Group of organic molecules found in foods that are composed of amino acids.
Down
  1. 1. Chemical reaction that involves breaking chemical bonds through the addition of water; occurs during chemical digestion and when ATP is split into ADP and Pi.
  2. 2. An attraction between atoms in a molecule; energy is required to break this attraction and energy is released when this attraction forms; (eg.) covalent.
  3. 3. Molecule that stores chemical energy and is used by cells to do work.
  4. 5. Structures within the lungs that are surrounded by small blood vessels (capillaries) and involved in the exchange of oxygen and carbon dioxide gases.
  5. 6. Structures within the small intestine that absorb digested food molecules and transport those molecules into the bloodstream.
  6. 8. Group of organic molecules found in food that are composed of carbon, hydrogen and oxygen and include sugars, starch, and cellulose.
  7. 10. Matter or energy that enters a process, such as a chemical reaction; a reactant.
  8. 12. A large molecule composed of many small and simple repeating units.
  9. 14. Type of energy released during cellular respiration; used to maintain internal body temperature.
  10. 17. The process of breaking down food into smaller components that can be absorbed into the bloodstream.
  11. 19. Organic substance containing carbohydrates, proteins, and/or fats that serves as both fuel and building material for an organism.