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

Describe the maturity stages in fish, Question 1: (a) Describe the mat...

Question 1: (a) Describe the maturity stages in fish. (b) "k" and "r" selection strategies are commonly used to describe the response of fish to biotic and abiotic cond

Pteridophytes, What are the affinities of pteridophytes with gymnosperms?

What are the affinities of pteridophytes with gymnosperms?

Common features of eye and limb development, Common Features of Eye and Lim...

Common Features of Eye and Limb Development A comparison of the embryonic development of the very much different organs, the eyes and the limb, points to various interesting

Which cell count elevates in case of allergy or plastic worm, Which cell co...

Which cell count is likely to be elevated when an individual has an allergy or parasitic worms? a) Red blood cells b) Erythrocyte c) Eosinophil (pron: e-o-sin-o-fill)

Role of exercise and drugs in management of diabetes, Q. Role of Exercise a...

Q. Role of Exercise and Drugs in management of diabetes? Aerobic exercise for at least 20-30 minutes four or more times a week is recommended. Exercise after meals is preferre

Can you explaon about aortography, Q. Can you explaon about Aortography? ...

Q. Can you explaon about Aortography? Visualization of the aorta and its branches is possible by several modalities today. Apart from angiography, aorta can also be visualized

Explain class bivalvia in animal kingdom, Explain Class Bivalvia in animal ...

Explain Class Bivalvia in animal kingdom? This name of this Class reflects the group's most distinguishing feature. Clams, oysters, scallops and mussels all have two shells tha

Functions based on management principles, FUNCTIONS BASED ON MANAGEMENT PRI...

FUNCTIONS BASED ON MANAGEMENT PRINCIPLES: Planning: The objectives of nursing unit should be achieved through planning, good coordination and supervision. While planning nur

How many cells are in the average human brain, How many cells are in the av...

How many cells are in the average human brain? Roughly, 6 trillion are in the average human brain.

Importance of compliance, It is important to explain to the patient about i...

It is important to explain to the patient about importance of taking treatment regularly. In case he misses the dose or takes medicine or insulin irregularly, explain the side effe

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