Question

Distinguish between a trace element and an essential element. Give an example of each.

Answer 1

Trace elements, like iodine, are essential for biological functions but required in minute quantities, while essential elements, such as calcium, are needed in larger amounts for survival and development.

Step-by-step explanation:

The question asks to distinguish between a trace element and an essential element, and to give an example of each. A trace element is a type of essential element that is required by an organism in only minute quantities. Trace elements are necessary for proper biological function but are needed in very small amounts. An example of a trace element is iodine, which is used to produce thyroid hormones and is essential for preventing disorders such as goiter.

On the other hand, an essential element is a chemical element required for an organism to survive, grow, and reproduce. These can be needed in larger quantities than trace elements and include elements such as carbon, hydrogen, and oxygen. An example of an essential element that is required in larger amounts is calcium, which is important for bone structure and other critical biological functions.

Answer 2

Trace element are needed only in small amounts and the plant do not ‘ die’ when they lack.

While insufficient supply of an essential element can lead to major diseases and inhibit main function of the plant and can ultimately kill the plant