Element required by higher plants, Biology

Assignment Help:

Element Required By Higher Plants

Table shows the list of sixteen elements that fulfil the criteria of essentiality stated above, their approximate adequate concentration and approximate number of atoms required with molybdenum (Mo) serving as the reference point. Look at the difference! The requirement of hydrogen atoms is about 60 million times the number of Mo atoms. It is because H is an essential part of thousands of chemical compounds with which the plant is made of, whereas Mo is required only in one or two enzyme mediated reactions. Scientists have added a few more elements to the list of sixteen though they have found them essential only for certain group of plants.

These are, sodium (Na), cobalt (Co), silicon (Si), nickel (Ni) and even chromium (Cr), tin (Sn) and fluorine (F). Some specific organisms may require other elements. For example, certain algae apparently also require the elements vanadium (Va), silicon (Si) or iodine (I), while some ferns utilise aluminium (Al) and some local weeds absorb and accumulate selenium (Se) in high amounts.

Table:  The essential element required by higher plants

1130_Element Required By Higher Plants.png


Related Discussions:- Element required by higher plants

Illustrate about dosage and administration of menactra, Dosage and  adminis...

Dosage and  administration  Menactra is given as a single intramuscular injection. The need for and timing of booster doses is unknown. An unpublished study summarized in the p

Structure of spermatozoan, STRUCTUR E OF SPERMATOZOAN Structure of spe...

STRUCTUR E OF SPERMATOZOAN Structure of sperm is divided into 3 parts -      (1) Head                  (2) Middle piece             (3) Tail 1 .       HEAD

Explain functional property of emulsification, Explain Functional property ...

Explain Functional property of Emulsification Mode of action  Proteins stabilize fat emulsions Food system Sausages, soups, cakes, salad dressings, infant foods

Extraction of the tooth, Extraction of the tooth -In nonstrategic impo...

Extraction of the tooth -In nonstrategic importance -Diseased maxillary second molars with no opposing tooth , or with an opposing tooth in class l or lll occlusion that ar

Explain the digestive system, Explain the Digestive System ? The diges...

Explain the Digestive System ? The digestive system takes in food and processes it. Digestion is the mechanical and chemical breaking down of food into a form that can be used

Valve separate the right ventricle from the pulmonary artery, Q. What is th...

Q. What is the valve that separates the right ventricle from the pulmonary artery? Why is that valve important? The pulmonary valve is important to prevent blood from the pulmo

Explain the classification of malignant tumors, Explain the Classification ...

Explain the Classification of Malignant Tumors Malignant tumors can be classified as: Carcinomas: These tumors arise from the epithelial lining (the squamous cells) e.g. ski

Describe a method of diagnosing diabetes mellitus, Q. In ancient Greece the...

Q. In ancient Greece the father of Medicine, Hypocrates, described a method of diagnosing diabetes mellitus by tasting the patient's urine. What is the physiological explanation fo

Determine the stages of healing events, Determine the stages of healing eve...

Determine the stages of healing events The healing events are described in 3 stages Stage 1: Wound healing and formation of woven bone (callus) (2 to 6 weeks) Stage 2: La

Explain about the picric acid test, Explain about the Picric acid test? ...

Explain about the Picric acid test? This test is answered by all reducing sugars, with a free aldehyde or ketone groups. Monosaccharides possess a free aldehyde or ketone group

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