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Across 1. The three stages of Cellular respiration are glycolysis, the Krebs Cycle, and the __________ _________ _________. 5. Three things that affect enzyme activity are environmental conditions, cofactors and coenzymes, and ________ _________. 8. R groups join together to form the _________ structure. 12. The specific enzyme used to help break off the last phosphate of an ATP structure 13. The _______ __________ breaks down carbohydrates in Cellular respiration. 15. Full name for ATP 16. Structure that is formed when polypeptide subunits join and become goblular 17. The substance that an enzyme joins and acts on 18. The process of adding a water molecule to break down macromolecules (polymers) 19. Proteins that act as catalysts to accelerate a chemical reaction 20. _________ takes place in the cytoplasm of the cell.

Down 2. Cellular respiration is what type of process? 3. The names of specific enzymes will always end with the suffix ___. 4. Monosaccharides form into chains to make ____________. 6. The Krebs Cycle and the Electron Transport Chain both take place in the ______________. 7. ATP is made in our bodies through a process called __________ __________. 9. The structure that has a specific sequence of amino acids in a protein; also known as the primary structure 10. ATP is made of 3 phosphates, an Adenine base, and _________ (hint: type of sugar). 11. When the polypeptides fold, they form a __________ and become part of the Secondary structure. 14. Carbon can share electrons to form up to four ________ _______.