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

Why do ribosomes move along mrna during translation, Q. Why do ribosomes mo...

Q. Why do ribosomes move along mRNA during translation? During translation the ribosome always exposes two mRNA codons to be translated by moving along the mRNA, when a peptide

Explain chiasms of homologous chromosomes, Q. What are the "chiasms" of hom...

Q. What are the "chiasms" of homologous chromosomes observe in prophase I? Chiasms are intersections of two tracts in the form of X, The chiasms seen in prophase I are chromoso

Explain the factors affecting gi of foods, Explain the Factors Affecting GI...

Explain the Factors Affecting GI of Foods? A variety of factors affect GI of foods. The factors which affect the rate of glucose absorption from starchy foods and therefore the

Define larval stages of fasciola hepatica fasciola hapatica, Define the Lar...

Define the Larval stages of fasciola hepatica? Fasciola hapatica reproduces both sexual and asexually. Cross-fertilization is of common occurrence. Copulation takes place in t

Does ascaris lumbricoides present an intermediate host, Q. Does Ascaris lum...

Q. Does Ascaris lumbricoides present an intermediate host? An Ascaris is a monoxenous parasite, its life cycle is dependent only on one host and so it doesn't have intermediate

Heat production, Heat Production In the Homeotherms heat production m...

Heat Production In the Homeotherms heat production must be elevated if the ambient temperature falls below the critical temperature. Although all metabolic processes result i

Explain metastatic carcinoma, Explain Metastatic carcinoma Metastatic ...

Explain Metastatic carcinoma Metastatic carcinoma:- Cancer that can be  transferred from one part of the body to other unrelated parts.

Osmosis, everything about osmosis

everything about osmosis

How the type of sport influence protein requirements, How the type of Sport...

How the type of Sport influence protein requirements? The type of sport and total calorie intakes influence protein requirements. Eating sufficient foods to meet high energy re

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