Enzymes Speed Up The Rate Of A Chemical Reaction

Of the many functions of proteins, catalysis is by far the most vital. When catalysis is not present, most reactions in the biological systems take place very slowly to produce at an adequate pace for metabolising organism. The catalysts that take this role are called enzymes. Enzymes are the most efficient catalysts; they can enhance rate of reaction by up to 1020 over uncatalysed reactions. (Campbell et al, 2012).

Enzymes are types of proteins that work as a substance to help speed up a chemical reaction (Madar & Windelspecht, 104). There are three factors that help enzyme activity increase in speed. The three factors that speed up the activity of enzymes are concentration, an increase in temperature, and a preferred pH environment. Whether or not the reaction continues to move forward is not up to the enzyme, instead the reaction is dependent on a reaction’s free energy. These enzymatic reactions have reactants referred to as substrates. Enzymes do much more than create substrates; enzymes actually work with the substrate in a reaction (Madar &Windelspecht, 106). For reactions in a cell it is

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.

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).

PURPOSE: Measure the effects of changes in catalase concentration, substrate concentration, and salinity on the reaction rates of an enzyme.

Enzymes are proteins that act as catalysts during a biochemical process. Catalysts are non-changing enzymes that can increase or decrease activation energy to accelerate or slow down a biochemical reaction without using additional energy.

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.

Enzymes are a key aspect in our everyday life and are a key to sustaining life. They are biological catalysts that help speed up the rate of reactions. They do this by lowering the activation energy of chemical reactions (Biology Department, 2011).

There are thousands of chemical reactions that occur in an organism that make life possible. Most of these chemical reactions occur too slowly on their own. Enzymes are protein catalysts that speed up chemical reactions in a cell. Catalysts are not changed by the reactions they control, and are not used up during the reaction. Enzymes therefore, can be used over and over again. Enzymes are large complex proteins made by the cell and allow chemical reactions to take place at the temperature of the cell. These catalysts are needed in only very small amounts because a single enzyme molecule can complete the same reaction thousands of times in one minute.

Enzymes defined as biological catalysts that speed the chemical reaction by reducing the activation energy (Biology Department, 2014). Enzymes play an important biological role in the cell, as it is important to keep the cell alive by speed up the reaction, which explains why in absence of enzyme some reactions need long time (Richard & Mark, 2001). Also, enzymes regulate organism intercellular function for example enzymes help to keep human body healthy by defend it from infection, regulate blood sugar, and maintenance weight (Reece et al., 2014).

An enzyme is a catalyst. Catalysts are known for speeding up the rate of reactions by lowering the activation energy of the biochemical reaction. (Reece et al., 2011)

generally act as a catalase that initially bring about a chemical reaction.” Enzymes play an

So, what exactly are enzymes? Enzymes are proteins, complex organic compounds, but they are also catalysts, which help speed up chemical processes without being consumed themselves. As proteins, enzymes are made up of chains of amino acids that form a complicated three-dimensional shape that is crucial to their function. Enzymes are able to function as catalysts because of their unique three-dimensional shapes. Catalysts help facilitate a quicker chemical reaction without being consumed in the actual reaction, so enzymes play a crucial role in speeding up the chemical reactions in our daily lives. The shape of enzymes allows them to catalyze reactions because substrates, the molecules broken down by catalysts, perfectly match the shape of the enzymes, fitting together perfectly like a lock and key. During catalysis, when substrates are ready to be broken down, generally the energy needed to break down the substrates is substantially larger than the amount of energy naturally available. This is where enzymes come in handy. Enzymes with the correct corresponding shape attach themselves to the substrates and form a temporary chemical bond with them. This causes the bonds within the substrates to weaken and break. Eventually, the bonds between the enzymes and the substrates break, and they are separated. The substrates break apart and are free to be

Enzymes are proteins that act as catalysts and help reactions take place. In short, enzymes reduce the energy needed for a reaction to take place, permitting a reaction to take place more easily. Some enzymes are shape specific and reduce the energy for certain reactions. Enzymes have unique folds of the amino acid chain which result in specifically shaped active sites (Frankova Fry 2013). When substrates fit in the active site of an enzyme, then it is able to catalyze the reaction. Enzyme activity is affected by the concentrations of the enzymes and substrate present (Worthington 2010). As the incidence of enzyme increases, the rate of reaction increases. Additionally, as the incidence of substrate increases so does the rate of reaction.