Mineral Nutrition Question 3
3. Which of the following elements is responsible for maintaining turgor in cells?
(a) Magnesium
(b) Sodium
(c) Calcium
(d) Potassium
Show Answer
Answer : d
Hints & Solution
(d) Plants require potassium ions $(K^{+})$for protein synthesis and for the opening and closing of stomata, which is regulated by proton pumps to make surrounding guard cells either turgid or flaccid.
