Question

Cell walls become brittle due to lack of ____________ elements.

Options

• Boron

• Copper

• Potassium

• Calcium

Answer 1

Cell walls become brittle due to lack of Calcium elements.

Explanation:

Ca is a macronutrient that plants use for a variety of metabolic processes. The middle lamella in the cell wall is primarily comprised of Ca pectate, which provides mechanical strength and acts as a glue to keep adjacent cell walls together. In the absence of Ca, the cell wall becomes fragile.