3 Jul
I have a bunch of questions I have answered. Just want to make sure everything is correct. If I have made an error please note which question number and what you feel the correct answer should be. Thanks! 1. Chemical reactions that will occur only if there is an addition of energy are said to be: Answered- endergonic2. A metabolic reaction that has two parts- one reaction that releases energy and one reaction that requires energy to be completed is said to be a(an):Answered: coupled reaction3. The metabolism (breakdown) of ________ in the mitochondria provides the energy for the resphosphorylation of ADP. Answered: glucose4. ATP contains: Answered: adenine, ribose, and three phosphates5. Facilitated diffusion is not used for ATP by the body’s cells. Answered: True6. Most enzymes are: Answered: protein molecules7. Most of the body’s cells use a great amount of ATP daily Answered: but lare amounts of ATP are not stored by the body because we contantly re-generate ATP from ADP + phosphate8. If A>>B>>C>>D>>E>>F represents a metabolic pathway, then the letter F would represent?Answered: End product9. Which of the following is NOT true about enzymes? Answered: They provide the energy for many cellular reactions. 10. The combination of an enzyme and the substance it will act upon (catalyze) is called the:Answered: active site11. Which of the following is ot an enzyme?Answered: maltose12. What occurs when electrons are lost during a chemical reaction?Answered oxidation13. What are the end products of aerobic cellular respiration?Answered: carbon dioxide and water14. What are the reactants in the overall equation for aerobic cellular respiration?Answered: oxygen and glucose15. Glycolysis occurs? Answered: in the matrix of the mitochonria16. The final acceptor fore hydrogen ions in aerobic cellular respiration is?Answered: oxygen17. Most of the ATP of aerobic cellular respiration is produced by?Answered: the electron transport system18. Our muscles will undergo fermentation and produce lactic acid when:Answered: No oxygen is available19. Which process occurs in the cristae of the mitochondra?Answered: electron transport system20. Another term for an exergonic reaction is:Answered: catabolicTrue/False21. Enzymes catalyze chemical reactions-but are not changed in the process Answered: true22. When an organized system experiences entrophy- it will become less organized- and ultimately less stable. Answered: true23. ATP is necessary to accomplish the chemical work of protein synthesis. Answered: true24. An oxygen debt accumulates when lactic acid builds up in the muscles during strenuous exercise. Answered: true25. Fermentation is an aerobic process. Answered: false26. Decreasing the activation energy of a particular reaction means that it will require more energy to complete that reaction. Answered: false27. Even if enzymes denature- they can still act as catalysts. Answered: false28. Reduction reactions are defined as rections where electrons are gained by the system. Answered: true29. In the process of cellular respiration, glucose is oxidized and oxygen is reduced. Answered true30. Most enzymes funtion best at a pH of about 7. Answered: true31. The “stored” energy in a molecule like glucose: answered- ATP32 Referred to as the energy of motion: answered: kinetic energy33. Energy can neither be created nor destroyed: answered: 1st law of thermodynamics34. Organized systems tend to disorganize and lose energy over time: answered: 2nd law of therm35. The energy “currency” of all cells: answered: Potential energy36. Glucose actually splits into two 3-carbon molecules of PGAL answered: Glycolysis37. Produces lactic acid in animal cells and alcohol and carbon dioxide in certain bacterial cells. Answered: Fermentation38. Receives 2 molecules of Acetyl CoA and releases 4 molecules of carbon dioxide and 2 ATP’s Answered: Krebs Cycle39. Pyruvic acid is converted ton Acetyl CoA and moves into the mitochondria Answered: Transition Reaction40. Carrier molecules move electrons from high energy to low energy levels in this processAnswered: Electron Transport SystemI reversed #31 and #35 answers
