Define the role of vitamin a in immune response, Biology

Assignment Help:

Define the Role of Vitamin A in immune response?

Vitamins A is essential to normal immune function and- regulation. As discussed above, during vitamin A deficiency the goblet cell numbers are reduced in epithelial tissues and as a consequence, mucous secretions (with their antimicrobial components) diminish. Cells lining protective tissue surfaces fail to regenerate and differentiate; hence they flatten and accumulate keratin.  Both factors - the decline in mucous secretions and loss of cellular integrity- reduce the body's ability to resist invasion from potentially pathogenic organisms. Pathogens can also compromise the immune system by directly interfering with the production of some types of protective secretions and cells.


Related Discussions:- Define the role of vitamin a in immune response

What is the probability that the child will have pku, PKU is a recessive di...

PKU is a recessive disorder. Suppose two people who were heterozygous for PKU married and had a child. What is the probability that the child will have PKU?

Pyruvate carboxylase activation, Oxaloacetate has two main roles. It is an ...

Oxaloacetate has two main roles. It is an intermediate which is consumed in gluconeogenesis and it is also a key intermediate in the citric acid cycle where it fuses with acetyl Co

Show the principle parts of a mold, Q. Show the principle parts of a mold? ...

Q. Show the principle parts of a mold? The principle parts of a mold are a web-like structure known as mycelium and the spore. The mycelium is often white and cottony and penet

Define swollen and tender joints and haemorrhage, Define Swollen and Tender...

Define Swollen and Tender Joints and haemorrhage in various Tissues? Haemorrhages occur deep in muscle, particularly in calf, thigh, buttocks and forearm, causing pain in surro

Explain the molecular level, We just had to clean a food freezer in the off...

We just had to clean a food freezer in the office because *someone* put a can of Coke in the freezer and it exploded. Explain, at the molecular level, why the Coke can exploded. A

GENETICS.., DO I GET MY ANSWERS RIGHT AWAY?

DO I GET MY ANSWERS RIGHT AWAY?

Define principle of detection of metanil yellow, Define Principle of Detect...

Define Principle of Detection of Metanil Yellow? Non-permitted colours like lead chromate, metanil yellow, auramine, rhodamine B are used to brighten the foods especially spice

Explain fish actomyosin, Fish actomyosin Fish actomyosin has been found...

Fish actomyosin Fish actomyosin has been found to be quite labile and easily changed during processing and storage. During frozen storage, the actomyosin becomes progressively

Why food which can be taken in plenty, Food Which can be Taken in Plenty an...

Food Which can be Taken in Plenty and Food to be Avoided Lastly, in the context of changing the diet, we should know the foods to be avoided and the food to be taken in plenty

What are the ions, Q. What are the ions? What are the two kinds of molecule...

Q. What are the ions? What are the two kinds of molecules into which ions are classified ? Ions are substances or atoms electrically charged by means of gain or loss of electron

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