All the elements which are present in plant are not essential for it's metabolism..
For example, -Astragalus plant accumulate Selenium -Phacelia sericea accumulate gold. -plants growing near nuclear sites accumulate Radioactive strontium.
An element is said to be essential when it has a specific structural or physiological role and without which plants cannot complete their life cycle.
The above said plants can grow to maturity even in absence of those elements..So, we can conclude that all the elements present in plants are not essential.
Answers & Comments
All the elements which are present in plant are not essential for it's metabolism..
For example,
-Astragalus plant accumulate Selenium
-Phacelia sericea accumulate gold.
-plants growing near nuclear sites accumulate Radioactive strontium.
An element is said to be essential when it has a specific structural or physiological role and without which plants cannot complete their life cycle.
The above said plants can grow to maturity even in absence of those elements..So, we can conclude that all the elements present in plants are not essential.
HOPE THIS HELPS YOU.