Digestive enzymes, Biology

Assignment Help:

Digestive Enzymes

Now let us consider the general principles of digestion that are applicable t6all animals. We will start with the digestive enzymes that breakdown the large food molecules into smaller soluble component units. This breakdown involves the uptake of water and is called hydrolysis. However, digestive enzymes differ in the following ways:

a) Digestive enzymes are not as narrowly specific as other enzymes rather they show group specificity. For example, enzymes that digest carbohydrates can digest polysaccharides of both animal and plant origin,

 b) Even though enzymes performing similar functions in different animals are given same names, they are not identical chemically. For example, trypsin (an enzyme, that hydrolyses proteins) in humans is not identical to that found in fish. Temperature and pH for optimum activity is also different. For example, trypsin from vertebrate pancreas acts best in the pH range of 7-9 but in silkworm the pH range is 6.2-9.

c) Digestive enzymes from pancreas particularly those that digest proteins are secreted in an inactive form.

The three major classes of digestive enzymes are:

  1. Proteases that hydrolyse peptide bonds in proteins,
  2. Carbohydrases that hydrolyse glycosidic bonds in carbohydrate,
  3. Lipases that hydrolyse ester bonds in fats

Related Discussions:- Digestive enzymes

Transport in human, what is the name of the valve that separates the chambe...

what is the name of the valve that separates the chamber?Why is that valve necessary?

Why is cartilage more flexible than bone, Why is the cartilage more flexibl...

Why is the cartilage more flexible than bone? in general, why does cartilage take longer to repair than bone?

Epiboly of ectoderm, Epiboly of Ectoderm Like the presumptive endoder...

Epiboly of Ectoderm Like the presumptive endodermal notochordal and mesodermal cells migrate inward the areas in the epiblast vacated through them are occupied by expansion (

Digestion of various disaccharides of the diet, Digestion of various disacc...

Digestion of various disaccharides of the diet The enzymes from brush border membrane of small intestine complete the digestion of various disaccharides of the diet and the pro

Nutrition, define alimentary canal

define alimentary canal

Density independent factors, Density Independent Factors Density inde...

Density Independent Factors Density independent factors are the extrinsic factors which tend to regulate the density of a population in ways that are not correlated with its

Explain the evolution of the vascular plant body, Explain the Evolution of ...

Explain the Evolution of the Vascular Plant Body? Vascular Plant anatomy reflects adaptation to life on land. In an aquatic environment, the photosynthetic surfaces are support

How to ensure food safety by haccp, Ensuring  Food  Safety It is now w...

Ensuring  Food  Safety It is now well-known that the end product inspection and  testing does not provide safety of food. It has inherent limitation of mapping the potential ha

What are the classes of lipoproteins in the blood, Q. What are the classes ...

Q. What are the classes of lipoproteins in the blood? Blood lipids (cholesterol, triglycerides and phospholipids) being insoluble in blood need a ship to travel in our body; it

Features of estuaries, Features of Estuaries The physicochemical prop...

Features of Estuaries The physicochemical properties of the estuaries have large variation in several parameters and this often creates stressful environment for organisms. T

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