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

Explain process to control of breathing, Explain process to Control of Brea...

Explain process to Control of Breathing? The rate of breathing is controlled by the medulla, the segment of brain stem just above the spinal cord. If the brain stem is cut just

Why is genetic homozygosity dangerous, Why is genetic homozygosity dangerou...

Why is genetic homozygosity dangerous to a nearly extinct species? Genetic homozygosity leaves no variation for natural selection to act on. Thus, a new disease could wipe

Flow cytometry, Ask que1. Design a 4 colour Flow cytometry experiment with ...

Ask que1. Design a 4 colour Flow cytometry experiment with an aim to identify B220-, CD3+, CD4+ (DOUBLE POSITIVE) AND B220+, CD3-, CD4- (DOUBLE NEGATIVE) cells. Select from the fol

Crustacea, Crustacea The Crustacea show a great morphological diversit...

Crustacea The Crustacea show a great morphological diversity of appendages which may be grouped into three categories, cephalic, thoracic and abdominal. Their appendages are c

Fat metabolism, FAT METABOLISM Animals  digest  and utilize three main ...

FAT METABOLISM Animals  digest  and utilize three main  types  of fatty compounds or lipids  neutral or true  fats ( triglycerides ),  phospholipids  and sterols. Endproducts

Describe the access in heart disease newborn, Describe the access in heart ...

Describe the access in heart disease Newborn? A secure peripheral or central intravenous access is very essential. Inotropic agents with vasoconstrictor properties like Dopamin

Explain spray-dried milk powder, Q. Explain Spray-dried milk powder? Th...

Q. Explain Spray-dried milk powder? The milk which is concentrated by the process of spray drying contains about 40- 45% total solids. Do you know how the dried milk powder i

Define thermal coagulation and film formation, Define Thermal Coagulation a...

Define Thermal Coagulation and Film Formation? 1. Thermal Coagulation and Film Formation: Concentrated soy proteins can be thermally coagulated on a flat metallic surface, such

Explain precautions for gram staining of bacterial cultures, Explain Precau...

Explain Precautions for Gram Staining of Bacterial Cultures? 1. The dilutions should be chosen on the basis of expected counts in the food sample. 2. Food should be kept in

Translation in eukaryotes, Transcription in eukaryotes, a much more complex...

Transcription in eukaryotes, a much more complex procedure than in prokaryotes. In the eukaryotes, translation and transcription take place in several cellular compartments that ar

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