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

What is electrocardiogarm, Q. What is Electrocardiogarm? Poor R-wave pr...

Q. What is Electrocardiogarm? Poor R-wave progression, in precordial leads, or q-waves in anterior leads. Intraventricular conduction defects, esqecially LBBB are common. There

Eucaryotic cell structure , Eucaryotic cell structure All eucaryotic c...

Eucaryotic cell structure All eucaryotic cells have a cytoskeleton made up of a network of protein filaments (Figure shown below). This network gives the cell its shape, capac

Explain the spectrophotometer or colorimeter, Explain the Spectrophotometer...

Explain the Spectrophotometer or Colorimete? These can be used to measure the microbial growth or can be used in various microbial and biochemical assays. Figure illustrates t

Explain about the freezing - method of food preservation, Explain about the...

Explain about the Freezing - method of food preservation? Freezing (-18°C to - 40°C): In freezing, water in food turns into ice and makes unavailable for reactions to occur, an

Sigmoid growth curve, GROWT H CURVES - S-shaped or sigmoid - Desc...

GROWT H CURVES - S-shaped or sigmoid - Described by Verhuhst in 1839. It shows 5 phases - (i) Lag phase (ii) Positive acceleration phase (iii) Exponent

What body system hiv impairs, Given that most AIDS victims die from overwhe...

Given that most AIDS victims die from overwhelming infections or rare types of cancer, what body system do you think HIV (the AIDS virus) impairs?

What do you mean by alpha diversity, Q. What do you mean by Alpha diversity...

Q. What do you mean by Alpha diversity? Alpha (a) richness refers to the number of species found in small, homogenous area. Alpha diversity refers to the diversity in a partic

What ways farmers try to improve the quality of their soil, a) In what way...

a) In what ways do farmers try to improve the quality of (i) their soil, (ii) their crop plants?    b) What other steps do farmers take to maximise the yield from their

Define the basic concepts behind the spectral techniques, Define the Basic ...

Define the Basic Concepts behind the Spectral Techniques? Energy is transmitted via electromagnetic waves that are characterized by their frequency and wavelength. The physical

Explain the term- loss-of-function mutation, Where would a predicted silent...

Where would a predicted silent mutation have to be situated to actually result in a loss-of-function mutation (and potentially lead to the onset of disease)? A. Intron-exon jun

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