This website uses cookies to ensure you have the best experience. Learn more

How Enzymes Function Essay

1106 words - 5 pages



Enzymes are proteins produced by living cells, which regulate chemical reactions in the body.
Enzyme activity can be affected by

The experiments conducted were done to show that under optimum conditions; such as the ideal temperature, the right pH, and a higher enzyme or substrate concentration, the activity of the catalase enzyme would increase.
Exercise 5.1 Catalase Activity-Test tube one, which contains catalase buffered at pH 7 and hydrogen peroxide, will produce the highest bubble height because it contains the proper substrate/enzyme combo.
...view middle of the document...

Also, 10 mm of buffered catalase and 40 mm of hydrogen peroxide were used in test tube 1. For test tube 2, 20 mm of buffered catalase and 40 mm of hydrogen peroxide were used. And lastly, 30mm of buffered catalase and 40 mm of hydrogen peroxide were used in test tube 3.
Exercise 5.4 Effect of pH on Enzyme Activity- Material used for this part of the experiment also included three clean test tubes, and a ruler. For test tube 1, 10 mm of nonbuffered catalase, 20 mm of water with pH 3, and 40 mm of hydrogen peroxide were used. Materials needed for test tube 2 included, 10 mm of nonbuffered catalase, water with pH 7, and 40 mm of hydrogen peroxide. Lastly, 10 mm of nonbuffered catalase, 20 mm of water with pH11, and 40 mm of hydrogen peroxide were used in test tube 3.

Exercise 5.1: Catalase Activity
This experiment was started by marking three clean test tubes at 1 cm and 5 cm levels with a black sharpie. In test tube 1, fill to the 1 cm mark with catalase buffered at pH 7 and hydrogen peroxide to the 5 cm mark. Shake test tube to mix ingredients, and wait at least 20 seconds for bubbling to start. Observe the reaction; then measure and record bubble height. Test tube 2, was filled with water to the 1 cm mark, and then hydrogen peroxide was filled to the 5 cm mark. The solution was mixed well for 20 seconds, no reaction was noted, and results were recorded. In the last test tube of this experiment, it was filled to the 1 cm mark with catalase and to the second mark with sucrose solution. The solution was mixed well, observed for 20 seconds, and a reaction was observed. The height of the bubble column was measured, and recorded.
Exercise 5.2 Effect of Temperature on Enzyme Activity
Start this experiment by marking three clean test tubes at 1 cm and 5 cm levels with a black sharpie. Next, fill each of the test tubes with catalase at pH 7 to the 1 cm mark. Then, place one of the tubes in a refrigerator, with the temperature at -10 degrees Celsius. Place another tube in an incubator, with the temperature set at 37...

Other Essays Like How Enzymes Function

How Different Environmental Variables Affect Enzyme Activity

1641 words - 7 pages Title How Different Environmental Variables Affect Enzyme Activity Purpose The purpose of this lab is to see if changing the temperature, pH, or concentration of enzymes effects catalase activity. Background Enzymes are in every living thing. Enzymes are catalysts they speed up chemical reactions by reducing the amount of energy needed to perform them. Without them most chemical reactions would happen much too slow for life to exist

Biochemistry C624 Essay

1128 words - 5 pages dehydrogenase. If one of these enzymes were to have a defect of not producing, the result would be less NADH produced per turn of the cycle. NADH production is essential in the electron transport chain through oxidative phosphoralation to produce ATP. Additionally, one FADH2 is produced with each turn of the cycle, which is also vital in the transport chain to produce ATP. However, the cycle would continue to function, but not at an effective pace to

Cohort 1 Biochem

708 words - 3 pages Cohort #2 A. Insert your original diagram, or series of diagrams, with clear labels, that demonstrates the process of DNA replication at the biochemical level. Click here to learn how to insert images into a Google Document. Check to see that you described the function of the enzymes (enzyme names end in “-ase”) as part of the labels for the diagram(s) and that you labeled the following

Lab Report On Enzyme Activity

1218 words - 5 pages about the body and how it functions the best at a ph of around 7, neither acidic or alkaline. Likewise the body does not function well at a very high temperature or a very low temperature.Literature Cited1) Campbell, N. A. and J. B. Reece. 2002. Biology. 6th ed. Prentice Hall.2) Vodopich, D. S. and R. Moore. 1999. Biology: Laboratory Manual. 5th ed. WCB/McGraw-Hill3) Intro to Enzymes. December 4, 2002.

Freedom Does Mean License but Wisdom to Choose What Is Right for Oneself

4212 words - 17 pages ?mole of substrate A to product P or form1 ?mole of product P per minute at room temperature. 25. The ability of an enzyme to accelerate reactions is several orders of magnitude greater than inorganic catalysts such as platinum. How do enzymes achieve such rate enhancements?  (a) Enzymes lower the activation energy barrier for substrates to form products. Activation energy is the energy needed by a molecule to take part in a reaction. (b

Digestive System

1888 words - 8 pages The structure and function of the digestive system Your digestive system is made to perform its special function of turning food into the energy you need to survive and packaging the residue for waste disposal. To help you understand how the many parts of the digestive system work together, here is an overview of the structure and function of this challenging system. Mouth The mouth is the beginning of the digestive tract; and, in fact

Liver Foods

2596 words - 11 pages ability to activate liver enzymes that help your body flush out toxins. Garlic also holds high amounts of allicin and selenium, two natural compounds that aid in liver cleansing. 2. Grapefruit High in both vitamin C and antioxidants, grapefruit increases the natural cleansing processes of the liver. A small glass of freshly-squeezed grapefruit juice will help boost production of the liver detoxification enzymes that help flush out carcinogens and

Unit 2 Study Guide

1147 words - 5 pages allows proteins to function as extremely specific enzymes that function in a cell's metabolism. Proteins make up about one-half of your body's non-water mass. Ex. Amino acid Carbohydrates: Simply put, they are "sugars". They are important metabolically. Sugars are the major energy storage molecules for living organisms. Complex carbohydrates are made by combining more and more simple sugars. Ex. Glucose Nucleic acids: Measured by mass

Pathogens and Infection

2613 words - 11 pages to be absorbed. The genetic material is gathered together and enclosed by the membrane in the nucleus. Also, there are other structures called organelles in the cell that help the cell to function, such as mitochondria which converts energy, endoplasmic reticulum which makes complex proteins, and other organelles. The Golgi apparatus forms many types of proteins and enzymes. Lysosomes contain enzymes and help digest nutrients. Centrioles are

Levels of Life Worksheet

548 words - 3 pages | |Organic Compounds | |Large Biological Molecule |Atoms it Contains |Monomer(s) |Function(s) in Living Organisms | |Carbohydrates |C, H, and O |Monosaccharides |Source of energy | |Lipid


1023 words - 5 pages This essay will focus on dehydration, and water in the body how it is function. The reason water essential to health maintenance and what water can do to the body if not enough is obtained. This essay will mention how the body level based on hydration has on alcohol and caffeine. Sodium, potassium, and chloride compare and contrast how these different electrolytes function in the body. I will also explain the steps to take to ensure people not

Related Papers

Biology Lab 2 Rutgers Newark Essay

1249 words - 5 pages place in living organisms. The rate of enzyme activity is influenced by temperature, pH, and the presence of inhibitors. Introduction Enzymes are globular shaped proteins that are found throughout the body, with their main function being to act as biological catalysts. An enzyme can act to speed up or regulate the rate of the reaction, in order to maintain an efficient rate of biological reactions. Enzymes, whilst having an important role

Nutrition And Digestion Essay

905 words - 4 pages , one introduces too much toxins into the body and its organs than they may be capable of handling at that one time. The liver may not have enough enzymes (alcohol dehydrogenase) to break down all the alcohol, and the extra alcohol will circulate through the brain, liver and other organs until enzymes are available to metabolize it, disrupting their functions. 7. Explain what emulsification is to describe the function of bile. Fats, for the

Science Lab Essay

1770 words - 8 pages Cindy Rodriguez Professor. Mascarano Biology Lab Fall 2014 Determining the properties of an enzyme Abstract: To determine the properties of an enzyme, a peroxidase, turnip extract is used in this experiment Enzymes are large proteins that are responsible for the speed at which chemical reactions they are involved in taking place. Enzymes speed up chemical reactions by lowering the activation energy of a

Rate Of Photosynthesis And How It Varies

851 words - 4 pages photosynthesis to be much slower, and the same goes for the extremely cold temperatures. The enzymes will not be able to function properly due to the fact that there will not be enough kinetic energy to cause or result in effective collisions between the enzymes and substrate molecules. Due to this, there are a lot of things which need to be done to make sure that the temperature remains constant. Due to this, there is a