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- A member of the landing party has been sent to sickbay after being exposed to high levels of carbon monoxide. In order for Dr. McCoy to treat this patient he needs to know the degree of poisoning that has occurred. He will first explain to you why the carbon monoxide is a poison and then tell you what information he needs, please help him: The hemoglobin molecule carries O, in the blood from the lungs to the cells, where the O, is released for metabolic processes. The molecule can be represented as Hb in its unoxygenated form and as Hb O2 in its oxygenated form. One reason CO is toxic is that it competes with O, for binding to Hb: Hb O2(aq) + CO Hb CO(aq) + A G° = -14 kJ at 37°C (body temperature) What is the ratio of [Hb CO/[HbO2] at 37 °C with [O2] = [CO]?Explain the role of fetal haemoglobin (HbF) in the delivery of oxygen to a fetus during pregnancy. How does fetal haemoglobin differ from adult haemoglobin (HbA)?What are the criteria for essential elements in relation to biological systems. Explain the concept of essentiality.
- When the terminal phosphate is cleaved from the ADP molecule, the products are adenosine diphosphate and inorganic phosphate: ATP + H2O ––> ADP + Pi where Pi stands for the various forms of phosphate that exist at the pH of the particular solution. If the total concentration of Pi is 2.5 x 10–2 M, what are the concentrations of the predominant forms of phosphate that exist at pH 7.4?Which of the following factors primarily dictates the distribution of terrestrial biomes on Earth? The history of human development and civilization ㅎㅎㅎ The population density of animals Climate variables like temperature and precipitation The prevalence of certain rock and soil typesFALBERTA It is estimated that the total amount of oxygen (O2) contained in BIFS is equivalent to 6.6% of the oxygen present in the modern atmosphere. This is quite impressive given that the atmosphere during Archaean and early Proterozoic times was largely devoid of oxygen! Therefore, this reflects the photosynthetic efficiency of the early biosphere, coupled with its operation over long periods of time. Knowing that the mass of the modern atmosphere is 5.01×1018 kg, of which 21% is oxygen, what is the mass (in kilograms) of oxygen contained within BIFS? 6.9 x 1016 kg of O2 contained in BIF deposits Knowing that the molecular mass of O2 is 32 g/mole (0.032 kg/mole), how many moles of O2 are contained within BIFS? 2.17 x 1018 moles of O2 contained in BIF deposits Now, let us think about iron (Fe). The total mass of BIF's globally is estimated at 5.0x1017 kg, wherein iron accounts for approximately 35% by mass. The atomic mass of iron is 55.8 g/mole (0.0558 kg/mole). What is the total…
- What is H20?A student is preparing a solution of sucrose at a specific concentration. They are doing this by weighing out sucrose on a scale, placing it in a volumetric flask, dissolving it in water, and then diluting it up to the mark on the volumetric flask with water. How would the experimental (actual) molar concentration for C12H22O11 differ from the calculated concentration ( higher, lower, or the same) given the following scenarios? Explain.Discuss the roles of cofactors andcoenzymes in enzyme activity.
