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.
1 Stone countertops, including granite, other natural stone and quartz resin (engineered stone) cost $4-$150 per square foot, or $120-$4,500 for a typical 30 square foot kitchen countertop. 2  Stone tiles cost $4-$20 per square foot; slab stone countertops cost $50-$150 per square foot. Stone countertops, including granite, other natural stone and quartz resin (engineered stone) cost $4-$150 per square foot, or $120-$4,500 for a typical 30 square foot kitchen countertop. 2  Stone tiles cost $4-$20 per square foot; slab stone countertops cost $50-$150 per square foot.