Calculate the concentration of and be able to describe solutions . Predict net movement of molecules across a semipermeable membrane. Define what molecules move during osmosis . Use the terms hypotonic , hypertonic , and isotonic . Background Information Movement of Matter Movement is a characteristic which we most readily attribute to living organisms.
Animals move around, seeking their prey.
Vines twist and contort to maintain a grip on the tree trunk on which they are growing. Flowers open and close. Movement, however, is also a characteristic of the non-living world. Differential heating of air produces wind. Differential heating of water produces currents.