What is a food allergy (hypersensitivity), Biology

Assignment Help:

What is a Food Allergy (Hypersensitivity)?

A food allergy or hypersensitivity is an abnormal response to a food by our immune system. As illustrated in Figure, this non-toxic allergic hypersensitivity is immune mediated, i.e. immunological mechanism is involved or suspected.

148_What is s Food Allergy (Hypersensitivity).png

To understand this mechanism, we need to refresh our understanding of the immune system Antibodies, we learnt, are immunoglobulin produced by plasma cells in response to an antigen or allergen. Antigen, you may already be aware, is usually a foreign substance (i.e. protein, bacteria, virus, polysaccharide etc.) that stimulates antibody production. Allergens, on the other hand, are substances foreign to the body that on interaction with the immune system causes an allergic reaction. Five classes of antibodies have been identified. Immunoglobin A (IgA), Immunoglobin D (IgD), Immunoglobin E (IgE), Immunoglobin G (IgG) and Immunoglobin M (IgM).


Related Discussions:- What is a food allergy (hypersensitivity)

Digestive System, When a piece of thread is tied tightly around an animal p...

When a piece of thread is tied tightly around an animal pancreatic duct the animal experiences difficult in digestion but does not suffer from diabetes mellitus.Explain why?

Define clinical assessment for vitamin a, Define Clinical Assessment For Vi...

Define Clinical Assessment For Vitamin A? Clinical features of deficiency occur as ocular and extra ocular lesions. Ocular lesions affect the posterior segment of the eye init

Why is a leguminous crop rotation used in agriculture, Why is a leguminous ...

Why is a leguminous crop rotation used in agriculture? Leguminous crop rotation and other crop rotations are used in agriculture because in these plants many bacteria significa

Human diseases caused by bacteria, Q. What are some human diseases caused b...

Q. What are some human diseases caused by bacteria and what are their respective modes of transmission? The major human bacterial infections transmitted by respiratory secretio

Explain about the absorbed moisture - water found in food, Explain about th...

Explain about the Absorbed Moisture - water found in food? It is the moisture that has passed through cell walls and entered the cytoplasm of the cell. It is this form of water

Describe the nature of the enzymes, Describe the nature of the enzymes invo...

Describe the nature of the enzymes involved in the phosphorylation of glucose Phosphorylation of glucose: Glucose is converted to glucose-6-phosphate since phosphorylated inter

Dextrin, DEXTRIN Intermediate product of hydrolysis of starch. It co...

DEXTRIN Intermediate product of hydrolysis of starch. It consists of maltose & glucose. It is found in yeast & some bacteria.

Explain the role of citrate, Role of citrate Citrate in addition to bei...

Role of citrate Citrate in addition to being an  intermediate  of citric acid cycle provides a source of acetyl CoA for  the cytosolic synthesis of fatty acids. Citrate inhi

Explain fundamental of the photosynthesis process, Q. Is it correct to cons...

Q. Is it correct to consider water decomposition by the action of light the fundamental of the photosynthesis process? In addition ADP photophosphorylation, photic energy is al

Explain about non-nutritive sweeteners, Q. Explain about Non-Nutritive Swee...

Q. Explain about Non-Nutritive Sweeteners? Non-Nutritive Sweeteners: These are characterized by an intense sweet taste. They are needed in small quantities and do not make any

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