#Question id: 2225
#Unit 2. Cellular Organization
Five dialysis bags, constructed of a type of membrane that is permeable to water and impermeable to sucrose, were filled with various concentrations of sucrose and then placed in separate beakers containing an initial concentration of 0.6 M sucrose solution. At 10-minute intervals, the bags were massed (weighed), and the percent change in mass of each bag was graphed.
Which line or lines in the graph represent(s) bags that contain a solution that is hypertonic at 50 minutes?
#Question id: 2226
#Unit 2. Cellular Organization
What will happen to a red blood cell (RBC), which has an internal ion content of about 0.9%, if it is placed into a beaker of pure water?
#Question id: 2227
#Unit 2. Cellular Organization
Which of the following statements is most likely true of a protein that cotransports glucose and sodium ions into the intestinal cells of an animal?
#Question id: 2228
#Unit 2. Cellular Organization
Proton pumps are used in various ways by members of every domain of organisms: Bacteria, Archaea, and Eukarya. What does this fact most probably mean?
#Question id: 2229
#Unit 2. Cellular Organization
The difference between pinocytosis and receptor-mediated endocytosis is that:
#Question id: 2230
#Unit 2. Cellular Organization
Which of these statements about the composition of biological membranes is false?