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An experiment is designed to study the mechanism of sucrose uptakeby plant cells. Cells are immersed in a sucrose solution, and the pH of the surroundingsolution is monitored with a pH meter. The measurements show that sucrose uptake by the plant cellsraises the pH of the surrounding solution. The magnitude of the pH change isproportional to the starting concentration of sucrose in the extracellular solution. A metabolicpoison that blocks the ability of the cells to regenerate ATP also inhibits the pH change in thesurrounding solution. Explain the results.
Determine channel length (in cm) needed for mixing by diffusion two solutions flowing at a speed of 1 cm/s, one of which is water and the other is a salt solution.
In which population is the frequency of the allele for brown feathers highest? Explain and in which population would it be least likely that an accident would significantly alter the frequency of the brown allele?
Why does heat treatment cause leakage of betacyanin from beetcells? Why does the freezing treatment cause the same thing? What structures/organelles are common to plant cells? Why does acetone and methanol cause leakage of betacyanin from beet cells?..
Genes A, B, and C are linked on a chromosome and found in the order A-B-C. Genes A and B recombine with a frequency of 10 percent, and genes B and C recombine at a frequency of 25 percent.
Disulfide Bonds Determine the Properties of Many Proteins Some natural proteins are rich in disulfide bonds, and their mechanical properties are correlated with the degree of disulfide bonding.
how does the adaptive immune system remember its past victories.
Why was the discovery of microsphere and coacervates an important contribution to understanding of how life might have originated on earth .
Explain the pathophysiology and manifestations of shock. Compare and contrast cardiogenic, neurogenic, anaphylactic, and septic shock.
A researcher wants to develop a test that will distinguish charophytes and land plants from green algae. Which chemicals would be the best subject for such an assay.
Describe any 3 effects that alcohol can have on the liver. Which of these are long-term and which are short-term effects?
q. conduct an experiment to show the concept of perceptual set. connect at least three subjects family members
Describe the role of proteins in the stabilization of RNA tertiary structure and explain the structural features that differentiate RNA from DNA.
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