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.…
An enzyme is a protein that acts as a catalyst, a chemical agent that speeds up a reaction without being…
Enzymes are specific protein molecules that catalyze a specific chemical reaction (facilitate the chemical reaction without being permanently changed in the process) by binding to a specific molecule called a substrate molecule. For example, amylase is an enzyme (found in your saliva and small intestine) that breaks starch (polysaccharide) molecules down into simple (monosaccharide) sugars like glucose. In this case, the starch molecules are the…
Conclusion: Enzymes are catalysts that speed up the process of chemical reactions. They are also proteins, and most Enzymatic activities occur within organism. They decrease the activation energy that is needed to start a chemical reaction. The problem was the effect that…
Enzymes are known as protein catalysts. The name protein catalyst suggests that most enzymes are made of proteins. A catalyst is a substance that speeds up chemical reactions without being consumed in the process. (Giuseppe, M 2002, p.69). After a reaction has been catalyzed, the catalyst can be used again to catalyze the same reaction. Enzymes reduce the activation energy (minimal energy) it takes for a reaction to take place. Enzymes can either catabolize (destroy), or anabolize (build up) a chemical system.…
Enzymes are catalysts that speed up chemical reaction but are not themselves consumed or changed by the reaction. The cell’s biological catalysts are proteins. Proteins are made up of one or more polypeptide chains that are folded to make an active site, an area in which a material to be acted on by the enzyme, called the substrate, will fit. The temperature,pH, the concentration of enzyme, and the concentration of substrate all affect the activity of the enzyme and the rate of the reaction.…
Because when the temperature gets to high it will destroy the enzyme. Once the enzyme is destroyed it will no longer speed up or slow down a reaction.…
Increasing the temperature in a solution causes the particles to move faster, and thus, these particles collide with each other more frequently. The greater the number of collisions per second, the greater the reaction rate. However, increasing the temperature will not always increase the rate of reaction. Most enzymatic reactions occur faster in higher temperatures. But, a very high temperature can cause denaturation of these enzymes, thus causing a halt to such…
Enzymes are a protein serving as a catalyst, a chemical agent that changes the rate of the reaction without being consumed by the reaction. Enzymes are proteins made up of long chains of amino acids. These form complex shapes. The enzymes are individuals, like the different players on a ball team, they have different specific structures and jobs. As one ball player may be very tall and one short, the specific different shape of the active site on an enzyme is unique and prepares it to mix with a certain substrate. Without enzymes, the process of metabolism would be hopelessly slow. The reactant an enzyme acts on is referred to the enzyme 's substrate. The enzyme will combine with or to its substrate. While the two are joined, the substrate is converted to its product by catalytic action of the enzyme. There is an active site of the enzyme molecule which is a restricted region that actually attaches to the substrate. Usually the active site is formed by only a few of the enzyme 's amino acids, the rest is just the framework that reinforces the active site. In an enzymatic reaction, the substrate enters the active site then is held in place by weak bonds. Now the enzyme does its work and first changes shape so it can hold onto the substrate. Next the substrate is changed to its product, the product is released and the enzymes active site is ready and waiting for another molecule of substrate.…
Enzymes are specific-type proteins that act as a catalyst by lowering the activation energy of a reaction. Each enzyme binds closely to the substrate; this greatly increases the reaction rate of the bounded substrate. Amylase enzyme, just like any other enzyme, has an optimum PH and temperature range in which it is most active, and in which the substrate binds most easily.…
A catalyst is a substance that reduces the activation energy of a chemical reaction, making it energetically viable. It is also used to speed up the rate of a chemical reaction. Enzymes are an example of a catalyst that can be found in the body. They are biological catalysts which are mainly made up of proteins. It is produced to speed up chemical reactions and remain unchanged after a reaction. Enzymes have active site for the substrate to attach to, either to be broken up or joined together. They are also specific in their reactions, they only speed up certain reaction as the active site can only fit a certain substrate and does not work for the other substrates. Also, enzymes will only work properly upon strict optimum conditions. They lower the…
• Enzymes are biological catalysts. This means that they lower the energy required to start a chemical reaction within a cell but do not get used up by that reaction. Every reaction and process within a cell (metabolism) is controlled by a specific enzyme.…
Ionic bonds formed between two ions by the transfer of electrons. The speed at which a chemical reaction proceeds is known as the rate of reaction. The rate of almost every reaction can be increased or decreased due to different factor. Scientists have identified five factors that affect the rate of reaction. The five factors are temperature, concentration of the reactants, surface area, agitation (mixing), and catalyst (chemical helpers). The collision theory states that the rate of a reaction is directly proportional to the number of effective collisions per second between the reactant molecules. If the concentration of the reactants increases, the number of total collisions will also be increased. Therefore it will affect the frequency of total collisions, which leads to the change in the reaction rate. Temperature (T) is a measurement of the average kinetic energy (KEavg) of the particles. At higher temperature, the fraction of molecules with energies greater than the activation energy (Ea) increases.…
Enzymes do their work as catalyst by speeding up the process to improve performance. They lessen the activation energy making producing products easier .Enzymes act on specific substances in our bodies. The enzymes will fit into the substance or substrate like a lock and key .Once it is with its certain substrate, it acts like a key and it unlocks the substrate and the substrate can do what it needs to do and then the enzyme will releases from it and is not changed ,then it moves on to another substance.…
Enzymes are protein, they are used to catalyse metabolisms in all organisms. They break down complex molecules and build up complex molecules from simple molecules, these two processes are catabolic reaction and anabolic reaction respectively. Enzymes are needed in these two processes to catalyse releasing and taking up ATP molecules.…