Figure 1 presents a dialysis bag immersed in a beaker of water. Show
A student is using dialysis bags to model the effects of changing solute concentrations on cells. The student places one dialysis bag that contains 25 mL of distilled water into each of two beakers that are filled with 200 mL of distilled water. (Figure 1). The membrane of each dialysis bag membrane contains pores that allow small solutes such as monoatomic ions to pass through but are too small for anything larger to pass. After 30 minutes, 5 mL of a concentrated solution of albumin (a medium-sized, water-soluble protein) is added to one of the two beakers. Nothing is added to the other beaker. After two more hours at room temperature, the mass of each bag is determined. There is no change in the mass of the dialysis bag in the beaker to which no albumin was added. Which of the graphs below best represents the predicted change in mass over time of the dialysis bag in the beaker to which albumin was added? A B C D Which of the following best predicts what will happen to the lysosomal enzymes if the proteins that transport H+ ions from the cytosol into the lysosome are damaged?Which of the following best predicts what will happen to the lysosomal enzymes if the proteins that transport H+ ions from the cytosol into the lysosome are damaged? The lysosomal enzymes will not become active, since there will be no active transport of H+ ions.
Which cell is likely to be most effective in the exchange of materials?Based on the data, which cell is likely to be most effective in the exchange of materials? Correct. The surface area to volume calculation is 6010=6. Of the four cells, this one has the highest ratio of surface area to volume and is likely to be most effective in the exchange of materials.
What additional procedure would best help determine whether these movements are due to active transport or passive transport?What additional procedure would best help determine whether movements are due to active transport or to passive transport? Use two additional treatments, one containing only ethyl alcohol and one containing only acetate. Include a substance known to block ATP use by the plasma membrane.
Which of the following claims about the effects of the Valinomycin treatment is best supported by the data presented in the table?Which of the following claims about the effects of the valinomycin treatment is best supported by the data presented in the table? The valinomycin treatment caused a decrease in the activity of the mitochondria.
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