Question

In plants, the tonoplast facilitates the transport of a number of ions and other materials

• A. against concentration gradient into vacuole
• B. along concentration gradient into vacuole
• C. along concentration gradient into gas vacuoles
• D. against concentration gradient in contractile vacuole

Answer 1

The correct option is A against concentration gradient into vacuole

Tonoplast is the membrane surrounding the vacoule. The vacuole helps in maintaining cell volume and cell turgor; the regulation of cytoplasmic ions and pH. The tonoplast helps in the transpot of ion and minerals against the concentration gradient into the vacuole utilizing energy in the form of ATP.