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Across 7. category of macromolecules used for quick energy and have a C: H: O ratio of 1:2:1 10. sub-unit of fats and oils 11. universal energy molecule that stores and releases energy 13. sugar storage in animal tissues, especially muscle and liver tissue 16. the basic sub-unit that makes up nucleic acids 17. series of proteins in which high energy electrons are converted into ATP 18. the basic sub-unit that makes up proteins 19. molecule that is formed from glycolysis of sugar and other foods before entering the Krebs Cycle 20. main component of the cell wall of plants

Down 1. a form of a protein that acts as a catalyst to speed up a chemical reaction 2. cellular process that occurs in muscle cells and bacteria in the absence of oxygen 3. main component of cell membranes 4. process by which organisms used light energy to make sugars and other macromolecules 5. process that requires oxygen 6. category of macromolecules needed for cell growth and repair 7. cellular process that release energy by breaking down glucose and other food molecules 8. cellular process that occurs in bacteria and yeast cells in the absence of oxygen 9. category of macromolecules hat contains the hereditary information and controls cell functions 11. process that does not require oxygen 12. type of sugar found in plants and fruits 14. category of macromolecules used for energy storage, insulation, and cell membrane 15. major pigment of plants that captures light energy