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

Define the nutritional shortcomings among the elderly, Define the Nutrition...

Define the Nutritional shortcomings among the elderly? Nutritional shortcomings are common among the elderly; most often due to poor choice of foods i.e. they may be consuming

Phimosis, Phimosis Phimosis may be congenital or acquired. The foreski...

Phimosis Phimosis may be congenital or acquired. The foreskin in young infants cannot be retracted, because at that gge it is adherent to the underlying glans. Wlen an attemp

Enzyme-activity control, Enzyme-activity Control Availability of the s...

Enzyme-activity Control Availability of the substrate, NADH and nitrate would be an important determinant of the rate of nitrate assimilation. In addition, there are number of

How genetic material is transmitted, Name two differences how genetic mater...

Name two differences how genetic material is transmitted between prokaryotes (bacteria) and eukaryotes (humans). Hint: consider the number and structure of the chromosomes, the num

Explain the birth in human biology, Explain the Birth in human biology? ...

Explain the Birth in human biology? In humans, birth of the infant occurs about 270 days after conception. The period during which the uterus contracts to expel the newborn

Spastic and obstructive constipation, Q. Spastic and Obstructive constipati...

Q. Spastic and Obstructive constipation? Spastic constipation: It results from excessive tone of the colonic muscle. Obstructive constipation: It occurs usually due to obstr

Breeder select for in a cereal crop, What characteristics might a breeder s...

What characteristics might a breeder select for in (i) a cereal crop, (ii) a farm animal? (i) In a cereal variety, a breeder might select for high yield; disease-, frost- or dr

Evolution and scope of dental implantology, The need to replace missing tee...

The need to replace missing teeth has haunted humans for time immemorial. Since antiquity man has attempted to solve the problems associated with failing dentition. The goal of mod

Tubercular meningitis , Tubercular Meningitis (TBM) Tubercular meningi...

Tubercular Meningitis (TBM) Tubercular meningitis is a serious complication of childhood tuberculosis. It usually occurs secondarily to primary infection with tuburculosi

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