Question

Choose the correct answer from the alternatives given.
A plant requires potassium mainly for:

• A. holding its cells together
• B. opening and dosing of stomata
• C. synthesizing chlorophyll
• D. DNA replication

Answer 1

The correct option is B opening and dosing of stomata

Potassium is an essential plant nutrient and is required in large amounts for proper growth and reproduction of plants. In photosynthesis, potassium regulates the opening and closing of stomata and therefore regulates CO2 uptake. Potassium triggers activation of enzymes and is essential for the production of Adenosine Triphosphate (ATP).

So the correct answer is"opening and closing of stomata".