Figure 5.4 -Five Dialysis Bags,constructed from a Semipermeable Membrane That Is Impermeable

question 68

Multiple Choice

Figure 5.4
-Five dialysis bags,constructed from a semipermeable membrane that is 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.Figure 5.4 illustrates the change in the mass of the bags over time.Which line in the graph represents the bag with the highest initial concentration of sucrose?

• A)A
• B)B
• C)C
• D)D

---

Definitions:

Sensorimotor Stage

The earliest stage in Piaget's theory of cognitive development, lasting from birth to about age 2, where infants learn about the world primarily through sensory experiences and manipulating objects.

Formal Operational

The final stage in Piaget's theory of cognitive development, characterized by the ability to think abstractly, logically, and to carry out systematic planning.

Concept of Conservation

A cognitive ability in child development whereby the child learns that quantity or amount does not change despite a change in the form or arrangement of objects.

Object Permanence

The understanding that objects continue to exist even when they cannot be observed or heard, a concept developed during early childhood.