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

Similarities between cardiac, SIMILARITIE S BETWEEN CARDIAC AND SKELETAL M...

SIMILARITIE S BETWEEN CARDIAC AND SKELETAL MUSCLES - Both cardiac and skeletal muscles are made up of elongated fibres which have numerous myofibrils. The myofibrils of

Fine structure of pollen tubes grown in vitro, Fine Structure of Pollen Tub...

Fine Structure of Pollen Tubes Grown in Vitro The growth in pollen tubes is exclusively restricted to the tip. Cytochemical analysis reveals the pollen tip zone to be rich in

Define functions of protein, Define Functions of Protein? Each of the v...

Define Functions of Protein? Each of the various proteins in the body serves a specific function in the maintenance of life. Any loss in body protein, in reality, means a loss

Describe the theory of darwins, Describe the theory of Darwin's? Most s...

Describe the theory of Darwin's? Most scientists today accept the theory that living organisms have evolved according to the concept that was first proposed by Charles Darwin i

Explain the types of cell reproduction, Explain the Types of cell Reproduct...

Explain the Types of cell Reproduction ? One of the major characteristics of living organisms is their ability to grow and reproduce. This is accomplished by cell division. In

What is insulin pump, Insulin Pump An  insulin pump is a device used fo...

Insulin Pump An  insulin pump is a device used for the administration of  insulin, also known as continuous subcutaneous insulin infusion therapy. The device includes: - the

Explain the hormonal control of blood sugar levels, The sugar carried in th...

The sugar carried in the blood is glucose; the normal value of sugar in the human bloodstream is approximately 90mg per 100 bloods. Sugar is absorbed from the small intestines and

Vagina, what is vagina explain with diagram

what is vagina explain with diagram

Blood flow during exercise - circulation, Normal 0 false fals...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Explain the numerical aperture, Explain the Numerical Aperture? Numeric...

Explain the Numerical Aperture? Numerical aperture is a characteristic of each lens and is printed on the lens. It can be defined as a function of the diameter of the objective

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