Question

Explain with examples: macronutrients, micronutrients, beneficial nutrients, toxic elements and essential elements.

Answer 1

Macronutrient :

a type of food (e.g. fat, protein, carbohydrate) required in large amounts in the diet.

a chemical element (e.g. potassium, magnesium, calcium) required in large amounts for plant growth.

Micronutrient:

a chemical element or substance required in trace amounts for the normal growth and development of living organisms.

Beneficial nutrients:

They are plant nutrients that may not be essential, but are beneficial to plants. ... An excess of these nutrients may induce toxicity in plants. For example, when manganese is present in large amounts, it induces deficiencies of iron, magnesium, and calcium by interfering with their metabolism.

Toxic element :

Conversely, there are a number of elements that are toxic to the human body, interfere with its functioning and undermine health—such as mercury, lead, cadmium, aluminum, and arsenic. ... Toxic metals and essential element status can be assessed in urine, blood, feces and hair.

Essential element :

The essential mineral elements are: Nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, boron, chlorine, iron, manganese, zinc, copper, molybdenum, and nickel.

Answer 2

Different examples of essential elements

Explanation:

• Macronutrients : they're the nutrients needed by plants in massive amounts. they're gift in plant tissues in amounts quite ten mmole kg–1 of dry matter. Examples embody gas, oxygen, and atomic number 7.
• Micronutrients : area unit|they're} conjointly referred to as trace parts and are gift in plant bodies in terribly little amounts, i.e., amounts but ten mmole kg– one of dry matter. Examples embody metallic element, manganese, zinc, etc.
• Beneficial nutrients : they're plant nutrients that will not be essential, however square measure useful to plants. Sodium, silicon, metallic element and chemical element square measure useful to higher plants.
• Toxic parts : Micronutrients square measure needed by plants in little quantities. Associate in Nursing more than these nutrients could induce toxicity in plants. as an example, once metallic element is gift in massive amounts, it induces deficiencies of iron, magnesium, and Ca by officious with their metabolism.
• Essential parts : These parts square measure fully necessary for plant growth and copy. the need of those parts is restricted and non-replaceable. they're additional classified as macro and micro-nutrients.