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- Using the concepts of endo- and exo-cytosis explain the origin of the mitochondria. Include a drawingExplain what the Holliday Model is describing what type of event in a cell? Explain three key features of the improved Holliday Model and its resolution.Explain how cancer cell metabolism is different from normal cell metabolism. Describe how PET scans take advantage of this difference in metabolism to distinguish cancer cells from normal cells
- In the image below of a region of the mitochondria, which region would have the highest concentration of hydrogen ions? Choose one from the following: (a) A (b) BDescribe the sequence of steps in cellular respiration, starting with glucose.Which cell organelles are the sites of energy-yielding reactions? Describe the energy-yielding reactions taking place in such organelles.
- What does it mean to say that ATP is the “energy currency” of the cell? b) What type of energy does ATP represent? c) Where/what part of the molecule is energized? d) What is meant by the ATP cycle?Cellular respiration uses glucose and oxygen, which havehigh levels of free energy, and releases CO2 and water,which have low levels of free energy. Is cellular respiration spontaneous or not? Is it exergonic or endergonic?What happens to the energy released from glucose?. Select the principle related to the pumping of protons from mitochondrion matrix into mitochondrion intermembrane space during cellular respiration. * A. Oxidation of protein complexes release energy and this energy is used to pump protons. B. The process is simultaneously with osmosis of water through mitochondrion membrane. C. Reduction of integral protein complexes causing pumping of protons. D. NADH and FADH2 use exergonic reaction and release energy which helps pumping of protons.
- Suppose that liver cells were placed into a bowl containing hypotonic solution. What would you observe? Question options: a) The liver cells would lyse or burst. b) The liver cells would remain the same in both their size and their shape. c) The liver cells would start to generate more intermediate filaments for cellular protection. d) The liver cells would begin to initiate cholesterol synthesis. e) The liver cells would shrivel or crenate.Explain why the nucleus in adipose cells appear to be flattened and the cells hollowIn aerobic cellular respiration, which reactions occur only in the cytoplasm? Which ones occur only in a cells mitochondria?