Which of the following elements is responsible 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.