How Cell Use Enzymes

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.

Enzyme can be defined as a protein molecule that is a biological catalyst. (Ophardt, 2003) Catalyst increases the speed of a reaction but does not have to use anything to help increase the speed. An enzyme can be determined by their properties. Enzyme are a substrate specific, substrate connects to an enzyme at the location of an active site. Enzyme is not used in a reaction and enzyme function in a good condition at the optimum temperatures and pH. (Ahmez2005) Peroxidase is a type of enzyme which is used in the experiment.

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

1. An enzyme is a macromolecule that acts as a catalyst and also speeds up reactions.

Enzyme = any one of many specialized organic substances, composed of polymers of amino acids, that act as catalysts to regulate the speed of the many chemical reactions involved in the metabolism of living organisms. (Microsoft® Encarta® Encyclopedia '99.)

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 proteins that act as catalysts for reactions. This simply means that enzymes lower the activation energy required for a reaction to take place, allowing a particular reaction to take place much quicker and easier. Specific enzymes only lower the activation energy for specific reactions, and enzymes are shape-specific. The unique folds of the amino

Introduction: Enzymes are essential protein molecules that are used by living organisms to survive (Appleby 2014). They perform chemical reactions with such efficiency that life in the cell is sustainable (Appleby 2014). Without the specialized function to speed up chemical reactions quickly, cells would not be able to live. Also, enzymes do get used up after catalyzation. Every enzyme has a spot on its surface called the active site (Appleby 2014).

Mostly made of protein, enzymes help catalyze chemical reactions quicker by lowering the cell’s activation energy to complete a reaction, all while keeping its shape. A molecule or substrate will bind with an enzyme on its active site and reactants

Purpose of the Lab: In this lab I learned the different effects of substrates concentrations have on catalase activity. Introduction: Before you get started on this we should touch base on some critical points, these will help you perform and understand the experiment. Enzymes are protein molecules that are found in every living cell.

Enzymes are made up of thousands of amino acids that are linked together, to form a specific shape in order to create a chemical reaction. Functions of an enzyme includes increasing the speed of a reactions, they also act with one reactant to produce products and they regulate high to low and low to high enzyme activity. Peroxidase are enzymes whose primary function is to break down hydrogen peroxide (H2O2). Isoenzymes are enzyme group that catalyzes the same reaction but receive different products.

Organisms cannot depend solely on spontaneous reactions for the production of materials because they occur slowly and are not responsive to the organism's needs (Martineau, Dean, et al, Laboratory Manual, 43). In order to speed up the reaction process, cells use enzymes as biological catalysts. Enzymes are able to speed up the reaction through lowering activation energy. Additionally, enzymes facilitate reactions without being consumed (manual,43). Each enzyme acts on a specific molecule or set of molecules referred to as the enzyme's substrate and the results of this reaction are called products (manual 43). As a result, enzymes promote a reaction so that substrates are converted into products on a faster pace (manual 43). Most enzymes are proteins whose structure is determined by its sequence of its amino acids. Enzymes are designed to function the best under physiological conditions of PH and temperature. Any change of these variables that change the conformation of the enzyme will destroy or enhance enzyme activity(manual, 43).

Proteins are one of the key biomolecules that make up the human body and facilitate different processes and reactions in the body (Silverthorn, 2016). Proteins exist in every cell in the human body and there are many different types of proteins with specialized functions that are necessary to maintain homeostasis (Silverthorn, 2016). Enzymes are a type of protein that performs like catalysts in the cells and start specific reactions (Ira, 2009).Catalysts start or increase the rate at

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.

Enzymes are macromolecules that act as a catalyst, and it’s a chemical agent that accelerates the reaction without being consumed by the feedback or the results (Campbell and Reece, 2005). After the adjustment by the enzymes, the chemical movement through the pathways of metabolism will become awfully crowded because many chemical reactions are taking a long time (Campbell and Reece, 2005). There are two kinds of reactions in nature. The first one is Catabolic reaction and the second one is Anabolic reaction. Catabolic reactions are large molecules that are broken up into smaller molecules (Ahmed, 2013). Anabolic reactions are small molecules that join to make larger molecules, like polymerization (Ahmed, 2013). If you