Define vitamins b12 deficiency in vegans, Biology

Assignment Help:

Define Vitamins B12 Deficiency in Vegans?

Because plants do not synthesize vitamin B12, individuals who consume diets completely free of animal products (vegan diets) are at risk of vitamin B12 deficiency. This is not true of lacto-ovo vegetarians, who consume the vitamin through eggs, milk and other dairy products.

Persons living exclusively on vegetarian diets (vegans) have low serum levels of vitamin B12 and develop specific symptoms such as sore tongue, paraesthesia and signs of degeneration of the long tracts of the spinal cord as a result of low intakes of vitamin B12. Megaloblastic anaemia is not so common when folic acid intake is adequate. The anaemia results from decreased DNA synthesis and failure of the cells to divide properly, coupled with the continued formation of RNA.


Related Discussions:- Define vitamins b12 deficiency in vegans

Genetics what is this type of gene frequency change called, An hypothesis f...

An hypothesis for the extinction of the dinosaurs is that the earth had been hit by a gigantic meteor that caused the death of those big reptiles. In that case the entire genetic p

What is a population, Q. What is a population? In the Biology a populat...

Q. What is a population? In the Biology a population is a set of individuals of the same species living in a given place and in a given time.

What are vectors of parasites, Q. What are vectors of parasites? The Ve...

Q. What are vectors of parasites? The Vectors of a parasite are organisms can transport the parasite during stages of its life cycle mediating the infection of other hosts. For

Cytochemistry, Cytochemistry It is well known that certain stains and d...

Cytochemistry It is well known that certain stains and dyes specifically combine with certain chemical components of the cell. Cytochemical techniques take advantage of this fa

Preservation of species diversity, Q. Preservation of species diversity? ...

Q. Preservation of species diversity? Genetic diversity is, thus, important for the preservation of species diversity, and hence biological diversity. A knowledge of the variab

Explain the process of angioplasty, Q. Explain the process of Angioplasty? ...

Q. Explain the process of Angioplasty? Inflation of stenotic segment causes stretching of the vessel, fracture of the intimal plaque, partial disruption of the media and adven

Pathogenesis of viruses, Pathogenesis of Viruses Viral diseases An...

Pathogenesis of Viruses Viral diseases An indicated before, viruses cause a number of infectious human diseases from minor ailments like common cold, to fatal disease, lik

Explain milling extraction rate, Explain Milling extraction rate The ch...

Explain Milling extraction rate The chemical composition of the flour depends on the milling extraction rate.  Increasing the rate of flour extraction decreases the proportion

Effect of smoking on body, EFFECT ON BODY - 1 .       CANCER - B...

EFFECT ON BODY - 1 .       CANCER - Benzpyrene present in tobacco is carcinogenic , responsible for lung cancer. Tobacoo chewing also produce oral cancer. Smoking m

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