A scientist performs an experiment in which they create an artificial cell with a selectively permeable membrane through which only water can pass. They inject a 5M solution of glucose into the cell and then place the cell into a beaker containing 10M glucose. What effect do you expect to observe?
A. No net change in cell weight
B. Water moves out of the cell
C. Water moves into the cell
D. Glucose moves into the cell
E. Glucose moves out of the cell
Answer: B
You might also like to view...
Plants and their predecessors, green algae, do not share the property of
A. containing chlorophylls a and b, and carotenoids. B. containing cellulose-rich cell walls. C. containing a system of roots and stems. D. containing starch as the primary food storage product. E. forming a cell plate during cytokinesis.
Transgenic organisms are ________.
A. created in nature B. copyrighted C. only microorganisms D. patented
Which of the following is true regarding hemoglobin?
a. It is a lipid. b. It contains iron. c. It raises the concentration of oxygen in the blood. d. It is present in all vertebrates and invertebrates. e. It is identical to hemocyanin.
The protein SOS is a guanine nucleotide exchange factor for Ras. SOS helps facilitate the exchange of GDP for GTP. What would be the effect of a mutation that inhibits the interaction between SOS and Ras?
A. Ras would be more likely to hydrolyze GTP to GDP. B. GDP would remain bound to Ras, thereby preventing Ras activation. C. GTP would remain bound to Ras, thereby keeping Ras constitutively active. D. There would be no effect.