Define the enzyme deficiency or defects, Biology

Assignment Help:

Define the Enzyme deficiency or defects?

A food sensitivity or intolerance can occur when the body has difficulty in digesting a particular food and therefore reacts against it. Let us understand this mechanism in details. In normal digestion, the foods we eat are broken down (though chewing and the action of the acids etc. in our stomach and our intestines) into their component parts. The useful ones (the nutrients) are absorbed into the bloodstream through the digestive tract (or 'gut wall'), the redundant ones are flushed out through the bowel. However, if the foods are not properly broken down through some digestive malfunction the body either will not be able to absorb them properly or, since they have not been properly 'processed', may react against them. In the case of lactose intolerance, for example, the body fails to manufacture the enzyme lactase that is needed to digest the lactose sugar in mill<. Without lactase, the digestion cannot process the lactose sugar in the milk.

The digestion cannot cope with the raw lactose sugar so reacts against it in the form of cramps, vomiting, diarrhoea, abdominal pain etc. One other example is phenylketonuria (PKU), which is an inborn error of metabolism. In normal people the enzymephenylalanirze Izydronylase converts phenylalanine (an amino acid) to tyrosine (another amino acid), which is then utilized by the body. In PKU since phenylalanine cannot be hydroxylated to tyrosine, its metabolites accumulate and cause damage to the central nervous system and result in unusual irritability, eczema etc. Galactosemia due to deficiency of the enzyme galactose-1 -phospahte uridyl ti-ansferase which converts galactose-l- phosphate to glucose-1-phosphate leads to accumulation of galactose causing various symptoms such as vomiting, fever, jaundice etc.


Related Discussions:- Define the enzyme deficiency or defects

Coevolution of prey-predators, Predation is a process by which one organism...

Predation is a process by which one organism (predator) eats another organism (prey). If the prey population is abundant, the predator population also becomes abundant. If the pred

The statement is true or false, True or false, adaptations are the result o...

True or false, adaptations are the result of finding the best or only solution to a given problem a species faces.

Diseases, what diseases are caused by trypanosoma and entameoba histolytica...

what diseases are caused by trypanosoma and entameoba histolytica

Epistasis, EPISTASIS Epistasis is the phenomenon of masking or suppress...

EPISTASIS Epistasis is the phenomenon of masking or suppressing the expression of a gene by another non allelic gene. The gene which suppresses the expression of a non allelic

What is cytogenetics, What is Cytogenetics? Before the advent of modern...

What is Cytogenetics? Before the advent of modern technology, the American biologists Thomas Hunt Morgan, G.W. Beadle, H. Sturtevant, Barbara McClintock, and others contributed

What are some things that have algae in them, What are some things that hav...

What are some things that have algae in them? Yeast is considered Algae.

Role of hormones in regeneration, Role of Hormones in Regeneration Se...

Role of Hormones in Regeneration Several neurosecretory effects in regeneration are integrated into a neuroendocrine feedback system. It is frequently difficult to distinguis

What is phosphorylation, Q. What is phosphorylation? What are various biolo...

Q. What is phosphorylation? What are various biological processes in which phosphorylation plays a critical role? Phosphorylation is the name given to procedure of the addition

Definition of epileptic seizures, Definition of Epileptic seizures Epil...

Definition of Epileptic seizures Epileptic seizures are classified as symptomatic seizures if they can be identified with a specific cause, such as infection, trauma, tumor, va

What is the need of monitoring and surveillance, What is the need of Monito...

What is the need of Monitoring and Surveillance? Monitoring, we know, is the act of observing something and sometimes keeping a .record of it while surveillance is a repeated s

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