The Effect Of Different Temperatures On The Reaction Rates Of Enzymes

Do enzyme reactions increase as the temperature is raised? It is proven that the rate of an enzyme reaction increases as the temperature is raised. But by how much? A ten-degree centigrade rise in temperature will increase by fifty to on hundred percent. There is a direct influence between enzyme activity and temperature. The question that was studied in Bio110 lab Enzyme Activity II was “Does temperature influence the activity of an enzyme?” The null hypothesis is; temperature does not significantly influence enzyme activity. The alternative hypothesis is; temperature does significantly influence enzyme activity. The alternative hypothesis is accepted. This is true because in our results in the Enzyme Activity II, showed that as temperature increases so does the activity of an enzyme.

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

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

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.

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.

Enzymes are a very important to the biological process. Enzymes help break down food and are essential in helping convert that food to energy. Enzymes have a single function, which makes them unique and need specific conditions in order for the reaction to occur. Every function in an organism has its own unique enzyme (What are enzymes?). One important thing to know about enzymes is that they are proteins. According to rsc.org enzymes are efficient catalysts for biochemical reactions and they, “speed up reactions by providing an alternative reaction pathway of lower activation energy” (Enzymes).

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

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.

What is an enzyme? An enzyme is a biological catalyst that can speed up a chemical reaction by lowering the activation energy. Typically the lower the activation energy the faster the reaction will be. It's made up of a plethora of different types of proteins that forms into a 3D like shape. Enzymes are very important to the human body, because it keeps the chemical activity that undergoes in our body at a low temperature.

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

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 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.

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