Criteria of essentiality, Biology

Assignment Help:

Criteria of Essentiality

Amon and Stout as early as 1939, suggested certain criteria that an element must fulfil in order to be classified as essential. These criteria are listed below.

  1. An element is essential if in its absence the plant cannot complete its life cycle and form viable seeds.
  2. An element is essential if it forms a part of any molecule or a constituent of the plant that in itself is essential for the plant. For example, nitrogen in protein, magnesium in chlorophyll arid iron in cytochromes.
  3. The element must act directly inside the plant, and not enhance or suppress the availability of some other element.

 


Related Discussions:- Criteria of essentiality

Explain the term intracellular filaments, Explain the term Intracellular Fi...

Explain the term Intracellular Filaments? Intracellular Filaments : The cell contains fibrous proteins which serve to give the cell its shape and internal organization and fo

Female reproductive disorders-hydramnios, Hydrops amnii (Hydramnios) H...

Hydrops amnii (Hydramnios) Hydramnios is a rare condition. Excessive accumulation of amniotic fluid can be the result of foetal dysgenesis and agenesis. The increase of amniot

Explain the function of the umbilical cord, Q. What is the function of the ...

Q. What is the function of the umbilical cord? The umbilical cord is a set of blood vessels that connects the fetus with the placenta and in the fetus one extremity of the cord

What is the way of life of sponges, Q What is the way of life of sponges? ...

Q What is the way of life of sponges? Sponges live exclusively in an aquatic environment and they are attached by their base to a substrate fixation ground. Sponges are filteri

Why photoperiodism affect the flowering of some plants, How does the photop...

How does the photoperiodism affect the flowering of some plants? Flowering is a typical and simple to observe instance of photoperiodism. Most flowering plants flower only duri

Explain minerals requirement during thyphoid, Explain Minerals requirement ...

Explain Minerals requirement during thyphoid Minerals:   Loss of electrolytes and water is observed due to diarrhoea. Thus liberalizing on sodium intake  through salty soups,

Help, #Predict: In order to be able to energize a transport protein by phos...

#Predict: In order to be able to energize a transport protein by phosphorylation (by addition of a phosphate group from ATP), the portion of the protein to which the phosphate grou

Why pluricellular organisms are produced by serial mitosis, From the zygote...

From the zygote, pluricellular organisms are produced by serial mitosis. Would this formation be possible if every cell made by mitosis had an identical life in relation to its ant

Mycotic diseases-sheep, Goat and sheep M. mycoides subsp. capri is the...

Goat and sheep M. mycoides subsp. capri is the cause of caprine pleuropneumonia, a serious malady of goats. The disease is prevalent in certain parts of this country. The mort

Do you know about lateral lines of fishes, Q. What are the lateral lines of...

Q. What are the lateral lines of fishes? The lateral lines of bony fishes are sense organs that extend along both sides of the animal body they make contact with the environmen

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd