Nutrient elements of plants, Biology

Assignment Help:

Nutrient Elements of Plants

Let us first find out the chemical composition of plants and see which element nature has selected to support their healthy growth. Only then we will be able to know the nutritional requirement of plants. As you know a major part of plant tissue is comprised of water. This we can demonstrate by taking a known amount of plant tissue and drying it for a few hours in an oven at a temperature of 65-80°C. If we condense and analyse the vapours coming out from the plant tissue we will find that it is nothing but water. In fact, about 85-90 per cent of the tissue is composed of water. The part of the tissue which is left behind is called the dry matter and typically it is about 10-15 per cent of the original weight.

The dry matter consists mainly of organic compounds. About 90% of the dry matter consists of plant cell walls, primarily cellulose and related carbohydrates. This can be eliminated in the form of gases on combustion at 600°C. The residue now left is the ash which varies in different plant tissue from about 1 per cent to 0.15 per cent of the dry weight. Interestingly, a careful analysis of the ash shows that it contains almost all of the chemical elements present in the soil surrounding the plant.


Related Discussions:- Nutrient elements of plants

Sulphur - mineral elements, SULPHUR The major sources of sulphur are cr...

SULPHUR The major sources of sulphur are crucifers and animal proteins. Proteins present in pulses have little sulphur. Therefore, other vegetable proteins or crucifers must

Describe the role of vntrs in linkage analysis, Question 1: Show applic...

Question 1: Show applications of Bioinformatics in pharmacogenomics. Expand FASTA and BLAST. List out any 10 applications of Bioinformatics in pharmacogenomics Expand

Is cell division happening during the entire cell cycle, Is cell division h...

Is cell division happening during the entire cell cycle? What is interphase? Cell division properly happens during the mitotic phase of the cell cycle. During interphase proces

Gastroesophageal reflux, Q. Show Gastroesophageal reflux? Obesity is th...

Q. Show Gastroesophageal reflux? Obesity is thought to be another potential predisposing factor to gastroesophageal reflux or GERD. Maintenance of ideal weight for age may help

How do you determine if a molecule is polar or non-polar, How do you determ...

How do you determine if a molecule is polar or non-polar? A polar molecule is a molecule that has a net dipole moment because of its having unsymmetrical polar bonds

What is the relationship between enzyme, Q. What is the relationship betwee...

Q. What is the relationship between enzyme and vitamins cofactors? Many vitamins are enzyme cofactors that cannot be synthesized by the organism and must be acquired from the d

How does the amoeboid movement occur, Q How does the amoeboid movement occu...

Q How does the amoeboid movement occur and what are examples of beings and cells that use such movements for locomotion? Amoeboid movements are created by cytoplasmic movements

How to suppose the resistance across the chest, The human body can exhibit ...

The human body can exhibit a wide range of resistances to current depending on the path of the current, contact area, and sweatiness of the skin. Suppose the resistance across the

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