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Explain Your Reasoning.
Some of the mitochondrial electron transport carriers (the cytochromes) absorb light at characteristic wavelengths when they are carrying the extra electrons from NADH but not when they give up the electrons to the next carrier. Thus, the light absorption bands are all present when mitochondria are incubated in the absence of oxygen or when cyanide is present. Cyanide blocks the transfer of electrons from the last cytochrome to oxygen. When cyanide is absent and oxygen is introduced, the cytochromes stop absorbing light. There are three cytochromes in animal mitochondria, called a, b, and c. Another inhibitor of mitochondrial electron transfer is urethane. When urethane is added to aerobic mitochondria, cytochrome a begins to absorb light, but b an c do not. Finally, purified cytochrome c, even in the presence of oxygen, continues to absorb light. Use these observation to decide the order in which the cytochromes occur in the mitochondrial electron transport system. Explain your reasoning for your determined order. Why is it important that the cytochrome a be purified in the last observation
When Mexican hairless dogs are crosses with normally haired dogs, about half the pups are hairless and half have hair. When, however, two Mexican hairless dogs are mated, about a third of the pups produced have hair, about two thirds are hairless, an..
What effect did grounding of the planes after 9/11 have on daily temperature ranges? Why was temperature affected?
Research childhood obesity in the United States and discuss your findings in no less than five hundred words! Include your sources as well please!
If the D-value for a certain food product at 70 degrees centigrade is 3 minutes, how long would you need to expose the food to that temperature to conform to the standard practice used in the food industry?
1. Begin with the information in DNA, a specific gene. Describe how this genetic information results in the formation of a protein.
Read the overview on the concept of speciation and the difference between microevolution and macroevolution-What is the definition of species
A student harvested a plate ofDictyostelium cells and removed a few drops of the cell suspensionfor counting.
Current understanding of viruses, viroids, and prions and how do viruses, viroids, prions, and bacteria differ in terms of their biological identity and method of infection?
How has DNA sequencing affected the science of classifying organisms, You are on vacation and see an organism that you do not recognize. Discuss what possible steps you can take to classify it
What is the legal liability for 1995 Auto Corp. if the EEOC investigation finds the charge to be factual with employer knowledge of the events? Consider the options of mediation versus litigation with regard to organizational cost.
a. What is the phenotypic ratio expected for this testcross? b. Do the observed results fit with the hypothesis you have proposed in part "a" above?
What type of amino acid side chains would you expect to find folded on the interior of a globular protein? What kind of experimental evidence supports this claim?
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