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1. Since lactate is a "dead end" product of metabolism in the sense that its sole fate is to be converted into pyruvate, what is the purpose of its formation?
2. The molecule 2, 4 -dinitrophenol (DNP) is an uncoupler of oxidative phosphorylation. For a short period of time, it was prescribed clinically as a pill for weight reduction (against the advice of ssientists). Explain the basis for its ability to cause weight loss.
3. Consider the following reactions, which are two consecutive steps in the cyclic, multistep metabolic pathway referred to as the Kreb's cycle. The first reaction, which is not thermodynamically spontaneous, immediately precedes the second reaction, which occurs spontaneously. The two reactions are catalyzed by two independent enzymes.
L-malate + NAD plus<----> oxaloacetate + NADH + H plus +7(delta G knot --KJ/mol)Acetyl - CoA + oxaloacetate <----------> citrate +CoA -8( " " " " " )
How can the initial reaction occur in this pathway with such a high positive standard free energy?
Describe how a monomer is the basic unit of all macromolecules.
Assume you are an ecologist studying the effects of acid precipitation on plant life. Explain an experiment you would perform in order to determine which plant species will be a useful indicator species for acid rain pollution.
q. fibrinopeptides proteins involved in the blood clotting among other functions are called to have high amino acid
give details about alleles in a cell one page
discuss the proteins that compost the animal cell centrosomes, aster spindle apparati, and the helpers (which assist movement of chromatid chromosomes)
Reasons for not drilling in these locations is as simple as avoiding another major oil spill. In addition, other chemical and toxic substances come up when oil is recovered from the ocean floor. These chemicals and toxins are releases back into the o..
It was discovered that the replication of the ends of chromosomes was a problem due to the structure of DNA and the properties of enzymes used in the replication process.
Efforts to preserve biodiversity, though intended to reducehuman influence on the environment, might interfere with thenatural process of change and evolution. Do you agree? Why? Give examples to support your arguments.
What is one piece of evidence that the current global warming event is man-made?
As a laboratory assistant you were asked to determine the total number of bacteria in the urine of a person with a urinary tract disorder.
The concentration of free glucose inside a muscle cell is much lower, The patient experiences periods of hypoglycemia, particularly uponawakening
Animal and Plant Cell Structures-Your lab report will consist of the completed tables. Label each structure of the plant and animal cell with its description and function in the provided tables
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