The movement of ions or molecules across a cell membrane in the direction opposite that of diffusion, that is, from an area of lower concentration to one of higher concentration. The energy needed for active transport is supplied by ATP.
At the second tier, you can expect to pay $60 - $70 per linear foot. You'll have some concerns about chipping and denting, but less so than at the lower tier. At the highest tier, soapstone bathroom countertops are priced at $70 - $80 per linear foot, and their durability should not be an issue. See also: Bathroom Remodeling Ideas, Options and Solutions.
The average minimum cost per finished square foot of engineered quartz counters is $38. The average maximum cost per finished square foot of engineered quartz counters is $55. In addition to the cost of the slab of engineered quartz to be installed as a counter, there are some other costs associated with this home remodeling project. Supplies such as epoxy and adhesives add an average of $2.20 per finished square foot of surface area.