The Effect Of Different Temperatures On The Reaction Rates Of Enzymes

Question: How does changing enzyme concentration or temperature affect the reaction time of enzyme activity?

Hypothesis: If the temperature increases, then rate of the chemical reaction will increase as well, and if the temperature decreases, then the rate of reaction will also decrease.

There are many types of enzymes and each has a specific job. Enzymes are particular types of proteins that help to speed up some reactions, such as reactants going to products. One of them is the amylase enzyme. Amylases are found in saliva, and pancreatic secretions of the small intestine. The function of amylase is to break down big molecules of starch into small molecules like glucose; this process is called hydrolysis. Enzymes are very specific; for example, amylase is the only enzyme that will break down starch. It is similar to the theory of the lock

Enzymes are biological catalysts, which accelerate the speed of chemical reactions in the body without being used up or changed in the process. Animals and plants contain enzymes which help break down fats, carbohydrates and proteins into smaller molecules the cells can use to get energy and carry out the processes that allow the plant or animal to survive. Without enzymes, most physiological processes would not take place. Hundreds of different types of enzymes are present in plant and animal cells and each is very specific in its function.

Enzymes are an organic substance that are made up of polymers of amino acids that help the digestive system and metabolic processes in living organisms (Funk and Wagnalls, 2016). Enzymes are able

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Procedure A (Testing Enzyme Activity)- In some conditions, a reaction will occur and in others no reaction will happen.

Introduction:Enzymes are made up of proteins which are produced within living cells and act as catalysts which speed up chemical reactions. They are made up of long chains of amino acids containing carbon, hydrogen, oxygen and nitrogen. Enzymes are structured to be

In the following experiments we will measure precise amounts of potato extract as well as Phenylthiourea, combined with or without deionized water and in some instances change the temperature and observe and record the reaction. We will also investigate the different levels of prepared pH on varying samples of the potato extract and the Phenylthiourea and record the results. We will answer question such as what is the best temperature for optimum temperature reaction as well as the best pH level for the same reaction.

Enzymes are an essential aspect of our lives. They are catalysts that speed up the chemical reactions inside cells, or the process of metabolic reactions, from the synthesis of DNA down to the digestion of food in our bodies. Enzymes allow cells to grow and reproduce, as stated in the Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.) (Smith, 1997). Enzymes are proteins made from amino acids that are activated by ATP and other energy carriers. All chemical reactions start out as reactants and end up as products. In order for all reactions to be completed, activation energy must be created. Some reactions take more activation energy than other reactions do. Most chemical reactions in cells require enzymes in order to transpire quickly enough to endure life. Without the enzymes to shorten the activation energy needed to complete a reaction, life would not exist.

Enzymes are essential to the proper functioning of the human body. Enzymes are catalysts, which cause reactions to occur. The two primary classes of enzymes for maintaining life functions are digestive and metabolic enzymes. The primary digestive enzymes are classified as proteases, amylases and lipases. These enzymes can help breakdown food molecules. Metabolic enzymes are responsible for the repairing and structuring of every cell. Inadequate production of digestive enzymes can have a negative impact on the breakdown of food into the various nutrients our bodies require.

In this graph we can see, when the temperature is high, the rate of the reaction also increases, but when temperature is too high it denatures the enzyme. In this case enzyme’s activity is changing with increasing the temperature and by this the reacting molecules have more kinetic energy and they move faster and they have a better chance to collide. There is a specific temperature at which enzyme’s activity is the best, and this is known as (Optimum) and this temperature is 37 C (Human body temperature). After this point the temperature continue increasing, the rate of the reaction decrease and the enzyme denature (when the enzyme loses its original shape), this is the cause that enzyme stop working as it cannot bind to the substrate.

Enzymes, proteins that act as catalysts, are the most important type of protein[1]. Catalysts speed up chemical reactions and can go without being used up or changed [3] Without enzymes, the biochemical reactions that take place will react too slowly to keep up with the metabolic needs and the life functions of organisms. Catecholase is a reaction between oxygen and catechol [2]. In the presence of oxygen, the removal of two hydrogen atoms oxidizes the compound catechol, as a result of the formation of water [2]. Oxygen is reduced by the addition of two hydrogen atoms, which also forms water, after catechol is

Enzymes are biological catalysts, which speed up the rate of reaction without being used up during the reaction, which take place in living organisms. They do this by lowering the activation energy. The activation energy is the energy needed to start the reaction.