Explain what is enzymes, Biology

Assignment Help:

Explain what is Enzymes?

Enzymes are organic substances that speed up, or catalyze, a chemical reaction. At a given temperature, molecules have varying amounts of energy, and some will react more slowly than others in bringing a reaction to completion. Catalysts speed up a chemical process by lowering the activation energy required for the reaction to proceed.

The enzyme orients a portion of itself called the active site so as to form a temporary bond to specific parts of the reactant molecules, or substrates, forming an enzyme-substrate complex. It is thought that the complex distorts the arrangement of charges on the substrate molecules slightly so that less energy is needed to complete the reaction. The active site may be either polar or non-polar. Enzyme-substrate bonds are weak bonds, such as ionic and hydrogen bonds that can be broken easily by random thermal motion.

Enzymes, like other catalysts, are not altered in the in the process, and can therefore successively catalyze other thousands of similar reactions if the reactants are present. However, enzymes are specific for only one or a few reactions. Because of their specificity, it is not surprising that most enzymes in living organisms are complex proteins. Enzymes are able to both break down molecules as well as build them up.

 

 


Related Discussions:- Explain what is enzymes

Microbiologe, a precaution to follow when heat fixing a smear

a precaution to follow when heat fixing a smear

Management of soil productivity, Management of soil productivity The co...

Management of soil productivity The continuous prosperity and well being of the people of any nation is dependent upon several factors, one of the most important being the leve

Vertebrate, Basic characters of vertebrate classes

Basic characters of vertebrate classes

Neurotransmitters, Neurotransmitters We know that transmission of sign...

Neurotransmitters We know that transmission of signals from nerves to muscles is affected by acetylcholine a transmitter substance. Similarly neuron-neuron transmission is als

What are stains - staining strategies, What are stains? Microorganisms ...

What are stains? Microorganisms are difficult to be seen in living state because of their minute, colourless and transparent nature. Moreover, there is limitation of insufficie

Define vapour pressure - properties of solutions, Vapour Pressure The i...

Vapour Pressure The intermolecular forces in a liquid prevent most molecules from escaping from the surface. However, due to molecular collisions, some molecules have sufficien

Calculate the minimum dissolved oxygen tension, Given our knowledge so far ...

Given our knowledge so far we now need to evaluate if it is feasible to run the process in the designed vessel. We therefore need to compare the oxygen uptake rate and the oxygen t

Alcohol related emergencies, Alcohol Related Emergencies: Alcohol is o...

Alcohol Related Emergencies: Alcohol is one of  the most serious health problems. Alcoholism is defined as a primary or chronic disease with genetic, psychological and environ

Define the antigen-presenting cells of the immune system, Q. What are the a...

Q. What are the antigen-presenting cells of the immune system? The antigen-presenting cells of the immune system also known as APC cells are cells that do digestion and phagocy

Determine about the term - copper, Determine about the term - Copper   ...

Determine about the term - Copper   Copper is known to act as an electron carrier in enzymes which bring about oxidation - reduction and regulates respiratory activity in plant

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