Enzymes Essay example -- essays research papers

The structure of the enzyme is mainly dependent on the active site and variable groups. Extreme temperatures or extreme pHs can alter the structure of an enzyme. Enzymes function to lower the activation energy to break the bonds. They achieve this by putting stress and pressure on the bonds or creating a microenvironment for the substrate. Enzymes are regulated by inhibitors or activators and can be inhibited by the products of the reaction, called feedback inhibition. Enzymes are catalytic proteins; therefore they change the rate of a reaction without being consumed. This means that once and enzyme does its job it can still perform the same function as it did before. Organic catalysts change the rate of a reaction without being permanently changed. Enzymes are polypeptides that are made up of amino acids. Enzyme variable groups that are exposed are the places in which biological processes take place. These side chains, commonly called "R groups," make up the active site and catalyze the conversion of the substrate to make a product. These side chains are often called variable groups because they are often what determines the kind of enzyme it is, therefore determining what substrates it will bond with. A change in temperature or a fluctuation in pH can alter the enzyme’s structure. Anent temperature the alteration of the enzymes occurs when the temperature is very high and the enzyme denatures and is unable to perform the desired task. The temperature is so high that the active site of the enzyme changes and it is unable to bond with substrates. The pH at which different enzymes denature differs from enzyme to enzyme. Similar to too high a temperature, if a specific enzyme is at a pH at which the active site changes, the enzyme is unable to function. This illustrates how the structure of an enzyme is vital to its proper functioning. Allosteric enzymes differ in structure than the previous enzymes addressed. The extreme temperature and pH rules, however, still apply. Most allosteric enzymes are composed of two or more sub units, each having its own active site. The allosteric enzymes are constantly changing between two conformational states, active and inactive states anent functioning. This oscillation helps in the regulation of the enzymes. Enzymes function as organic catalysts, meaning that they are organic molecules (proteins) that change ... ...r to the allosteric site while the enzyme is in the inactive form will impede the ability of the enzyme to function. Cooperativity is when a substrate binds to the active site of an allosteric enzyme thus leaving the enzyme in active form and aiding in the binding of other enzymes to the other active sites of the enzymes. Feedback inhibition occurs when a metabolic pathway is turned off by the end product of the reaction. For example, the end product of a specific reaction may be an allosteric inhibitor to the specific enzyme that makes the product; this prevents the enzyme to make more products when they are not needed. As the product accumulates the product slows down the synthesis or products. In conclusion, the structure of the enzyme is mainly dependent on the active site and variable groups. Extreme temperatures or extreme pHs can alter the structure of an enzyme. Enzymes function to lower the activation energy to break the bonds. They achieve this by putting stress and pressure on the bonds or creating a microenvironment for the substrate. Enzymes are regulated by inhibitors or activators and can be inhibited by the products of the reaction, called feedback inhibition. Enzymes Essay example -- essays research papers The structure of the enzyme is mainly dependent on the active site and variable groups. Extreme temperatures or extreme pHs can alter the structure of an enzyme. Enzymes function to lower the activation energy to break the bonds. They achieve this by putting stress and pressure on the bonds or creating a microenvironment for the substrate. Enzymes are regulated by inhibitors or activators and can be inhibited by the products of the reaction, called feedback inhibition. Enzymes are catalytic proteins; therefore they change the rate of a reaction without being consumed. This means that once and enzyme does its job it can still perform the same function as it did before. Organic catalysts change the rate of a reaction without being permanently changed. Enzymes are polypeptides that are made up of amino acids. Enzyme variable groups that are exposed are the places in which biological processes take place. These side chains, commonly called "R groups," make up the active site and catalyze the conversion of the substrate to make a product. These side chains are often called variable groups because they are often what determines the kind of enzyme it is, therefore determining what substrates it will bond with. A change in temperature or a fluctuation in pH can alter the enzyme’s structure. Anent temperature the alteration of the enzymes occurs when the temperature is very high and the enzyme denatures and is unable to perform the desired task. The temperature is so high that the active site of the enzyme changes and it is unable to bond with substrates. The pH at which different enzymes denature differs from enzyme to enzyme. Similar to too high a temperature, if a specific enzyme is at a pH at which the active site changes, the enzyme is unable to function. This illustrates how the structure of an enzyme is vital to its proper functioning. Allosteric enzymes differ in structure than the previous enzymes addressed. The extreme temperature and pH rules, however, still apply. Most allosteric enzymes are composed of two or more sub units, each having its own active site. The allosteric enzymes are constantly changing between two conformational states, active and inactive states anent functioning. This oscillation helps in the regulation of the enzymes. Enzymes function as organic catalysts, meaning that they are organic molecules (proteins) that change ... ...r to the allosteric site while the enzyme is in the inactive form will impede the ability of the enzyme to function. Cooperativity is when a substrate binds to the active site of an allosteric enzyme thus leaving the enzyme in active form and aiding in the binding of other enzymes to the other active sites of the enzymes. Feedback inhibition occurs when a metabolic pathway is turned off by the end product of the reaction. For example, the end product of a specific reaction may be an allosteric inhibitor to the specific enzyme that makes the product; this prevents the enzyme to make more products when they are not needed. As the product accumulates the product slows down the synthesis or products. In conclusion, the structure of the enzyme is mainly dependent on the active site and variable groups. Extreme temperatures or extreme pHs can alter the structure of an enzyme. Enzymes function to lower the activation energy to break the bonds. They achieve this by putting stress and pressure on the bonds or creating a microenvironment for the substrate. Enzymes are regulated by inhibitors or activators and can be inhibited by the products of the reaction, called feedback inhibition.

Primate Intelligence versus Human Intelligence Essay

Monkeys are noted to be the closest depiction of the creation of humans. Undeniably, the existence and the life- activities of the said creatures are closely related to that of the human activities as well. Through studies including both scientific and psychological studies, the said creatures portray the closest relation to the human life and behavior. How they think and how they do things had been noted to be a direct depiction of how humans react to life and are thus affected by the different events that are connected with the said existence. This issue on the relationship of monkey-behaviors with that of the humans had been subjected to several questions and assumptions that relate the situation as to how their intelligence relate to that of the human intelligence. The intelligence of monkeys is noted through studies as ‘Primate’; meaning, monkeys follow an instinct that dictates to them what should be done. As for example, when they are in need of food, they notice this because of feeling hungry thus they are motivated to do something about it. As their food is found simply around their environment, they begin to forge. However, more than simply being dictated by the situation through instinct, primate intelligence shows how a situation is dealt with by an individual creature through immediate solution to arising problems that needs to be given attention at once. Through the utilization of primate intelligence, an individual is able to account something that is needed to solve an abrupt situation that he is facing. Upon studies, it has been shown how chimpanzees in particular react to several occurrences in their environment in an immediate response. The idea is that they are able to fix the problems easily through deciding abruptly during the actual situation. Through this, the social and the personal behavior of the said creatures are then outlined to respond immediately to several situations that they may face. Humans too are faced with these particular dilemmas in life. Just the same, they are bale to come up with the necessary decisions that they need to posses to be able to solve the situations or problems that they are particularly dealing with. Undoubtedly though, the decision making procedures of humans are naturally more complex than that of the chimpanzees or the monkeys as a whole. The idea is that when a human decides, he carries on several considerations that are involved in the issue. Most likely, the situation becomes much harder to deal with, but the results are more effective and beneficial for the issue that is being solved. True, both humans and other creatures were given the ability to think and decide from themselves. However, the reason why humans were separated from all the others is that they have the capability to reason out with their own thinking. Unlike other creatures, although they do have the capability to decide more than just being dictated, humans are able to set the different pros and cons of the decision before they are able to actually release the decision for further application. Constant understanding of the major elements of intelligence shall show that humans are of different understanding compared to that of the other creatures. Most likely this is primarily because of the fact that humans have the capability to logically identify their decisions and the reasoning that comes along with it. References: Marc D. Hauser. (1998). Games Primates Play. Research Library.

A Peek at What Astronomers are Finding