1) Autopsy reports or if they shopped at the same place or were in contact with each other as if they were family friends or neighbours of such or in the end was there a motive. 2) Most likely would be to perform an autopsy as it will help determine what type of poison it was. Or check the houses of the victims if they might have eaten something with the same poison as the medchine. 3) Cellular respiration in the mitochondria 4) Brain cells are particularly susceptible to oxygen deprivation and can die within five minutes of being cut off from the oxygen supply. When hypoxia persists for an extended amount of time, it can result in coma, convulsions, and even brain death 5) The levels of oxygen were higher. The cause of death is hypoxia as they had oxygen in their blood, meaning that they were taking in oxygen but that oxygen was not being taken up by the cells or used by the mitochondria. 6) Glucose is produced in the mitochondria Pyruvate is produced by glycolysis in the cytoplasm NADH is also produced in glycolysis which happens in the cytoplasm but is also produced in the krebs cycle 7) Glycolysis is the first of the major metabolic routes of cellular respiration to create ATP. Krebs cycle in the center and start the energy generation processes. It completes the sugar-breaking process that began with glycolysis and drives the generation of ATP in the process. The electron transport chain is a sequence of four protein complexes that couple redox processes, providing an electrochemical gradient that leads to the formation of ATP in a process known as oxidative phosphorylation. It happens in cellular respiration 8) Yes and that would be in the ETC because the NADH is broken down in the ETC and if it is not being broken down there must be something wrong in the ETC. 9) Mitochondria are known as the cell's powerhouse because they contain the electron transport chain (ETC), which is responsible for creating large amounts of ATP. 10) 11) The relationship is that oxygen is an electron acceptor in the ETC, accepting electrons from NADH and FADH2. Meaning ETC needs to make ATP molecules and electron gradients to be maintained. 12) Once in the body, cyanide attacks the ETC within cells. When this happens, the cells in the body are unable to use oxygen so as to carry out cellular respiration to yield energy that is needed by the body as Meaning no oxygen then no cellular respiration hence the cells in the body die this results in stoppage of functioning of the heart. 13) No, by providing oxygen will not be an effective treatment for cyanide poisoning. Because there will be a high intake of oxygen in the body but none will go to the mitochondria as it is blocked. 14) The cyanide antidote kit consists of three drugs administered together: amyl nitrite, sodium nitrite, and sodium thiosulfate. Amyl nitrite is inhaled for 15 to 30 seconds, whereas sodium nitrite is injected intravenously over three to five minutes. For around 30 minutes, sodium thiosulfate is given intravenously. Hydroxocobalamin will detoxify cyanide by binding with it to form harmless vitamin B-12. This drug neutralises cyanide at a slow enough rate to allow an enzyme called rhodanese to further detoxify cyanide in the liver.