BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Cadmium is not an essential element for plants, while iron, manganese and phosphorus are essential elements for plants.

Detailed explanation-2: -Those essential for health include calcium, phosphorus, potassium, sodium, chloride, magnesium, iron, zinc, iodine, chromium, copper, fluoride, molybdenum, manganese, and selenium.

Detailed explanation-3: -Uranium is the element which is not essential for life to originate and flourish on a planet.

Detailed explanation-4: -Iodine is not an essential element.

Detailed explanation-5: -Lead, Iodine and sodium are generally not required by plants and are non essential elements for plant mineral nutrition.