Which of the following elements is responible for maintaining turgor in cells

Options

A. Potassium
B. Sodium
C. Magnesium
D. Calcium

Answer

A

Explanation

Among the given elements, potassium `(K^(+))` is responsible for maintaining turgor pressure in cell because it regulates the proton pumps involved in opening and closing of stomata. Magnesium `(Mg^(2+))` is a constituent of chlorophyll pigment which helps in photosynthesis in green plants. Calcium `(Ca^(2+))` provides selective permeability to the cell membrane. All of these, i.e. `K^(+)`, `Ca^(2+)` and `Mg^(2+)` are essential elements.
Sodium `(Na^(+))` is involved in membrane permeability. It is a non-essential element.