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If a person has a stomach ulcer (that is aggravated by excessive hydrochloric acid {HCl} secretion ), why on earth would he or she be drinking milk to feel better, when milk is also an acid, pH=6.85? And what chemical(s) is(are) in antacids to make them effective in alleviating “heartburn”?
I have 30µg of a primer, whose molecular weight is 600. Determine how much water should I add to get a stock primer concentration of 100µM?
If populations are sustaining growth at r = 0.088 and the population in 2001 is 3000 individuals, in what year would snow geese be taken off an endangered species list.
Calculate how the permeability of each is altered when the pH is reduced to 1.0, a value typical of the stomach.How to demolish the function of this protein.
ATP-synthase is a large membrane-integral protein complex that produces ATP from ADP and inorganic phosphate. Describe the location of this complex in the cell; list its major parts and the subunits each part is made of. Describe how it is able to co..
Case study on Salmonella Outbreaks in the U.S.
At the present we know that over 99 percent of the time, glucose occurs in the closed-ring form. What likely difference between these forms would give chemists a clue that the open-chain form was not present.
Describe oxidative and non-oxidative branches of the pentose phosphate pathway and distinguish between these branches in terms of their roles in producing NADPH for biosynthesis reactions or 5-carbon sugar for mucleic acid synthesis.
A short-tailed mutant mouse was discovered. Multiple crosses of this mouse to mice with normal tail length produced 27 long-tailed mice and 25 short-tailed mice.
He says that the mere presence of DNA is not sufficient to prove the point: his cells may have adopted DNA as a useful molecule quite independently of all other known life forms. What would you do to convince him that he was wrong.
Two consecutive crosses, with the first between pure-breeding parents that differ in two phenotypes to create an F1 generation, and the second in two F1 progeny to create an F2 generation.
Tina is consuming 12 mg of iron per day. Her RDA is 15 mg. She has no condition warranting a greater-than-normal need for iron. Which of the statements is true about her consumption of this nutrient.
Suppose the diameer of a neutral helium atom is 1.40 x 10 to the second power pm. supposed that we could line up helium atoms side by side in contact with one another. How numerous atoms would it take to make the distance from end to end 9.00cm.
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