Potato Enzyme Lab

212 Words1 Page
bulb-icon

Recommended: Importance of enzymes

In our body, chemical reactions are happening constantly. Now, how are the chemical reactions in our body able to occur quickly, to massly create the needed materials such as energy, to support our every second need? Enzymes! Enzymes are proteins that speed up chemical reactions in our body. Our goal for this lab was to see if the change in pH level or temperature would affect the rate of enzyme activity. To do this experiment we had to first find a way to use enzymes. We had chose potato puree to act as our subject to experiment with, since it contained catalase, which is an enzyme. To actually see the rate of enzyme activity, we decided to mix the potato puree with hydrogen peroxide. The reason behind that was because catalase breaks down

Show More
Related

  • Pinto Beans Essay

    1230 Words  | 3 Pages

    Catalase is a common enzyme that is produced in all living organisms. All living organisms are made up of cells and within the cells, enzymes function to increase the rate of chemical reactions. Enzymes function to create the same reactions using a lower amount of energy. The reactions of catalase play an important role to life, for example, it breaks down hydrogen peroxide into oxygen and water. Our group developed an experiment to test the rate of reaction of catalase in whole carrots and pinto beans with various concentrations of hydrogen peroxide. Almost all enzymes are proteins and proteins are made up of amino acids. The areas within an enzyme speed up the chemical reactions which are known as the active sites, and are also where the

    Read More

  • The Effect of Temperature on the Activity of the Enzyme Catalase

    1594 Words  | 4 Pages

    The Effect of Temperature on the Activity of the Enzyme Catalase Introduction: The catalase is added to hydrogen peroxide (H²0²), a vigorous reaction occurs and oxygen gas is evolved. This experiment investigates the effect of temperature on the rate at which the enzyme works by measuring the amount of oxygen evolved over a period of time. The experiment was carried out varying the temperature and recording the results. It was then repeated but we removed the catalase (potato) and added Lead Nitrate in its place, we again tested this experiment at two different temperatures and recorded the results. Once all the experiments were calculated, comparisons against two other groups were recorded.

    Read More

  • Essay On Effect Of Temperature On Catalase

    729 Words  | 2 Pages

    Enzymes are biology catalysts which speed up the rate of a reaction (BBC News). Catalase is an enzyme which is found in one’s body and can destroy any harmful substances. Without catalase, many toxic materials could attack and mutate DNA. Catalase is located in the hepatic and when mixed with hydrogen peroxide, it breaks it down into oxygen and water. When the reaction happens it follows this equation: 2H2O2 → 2H2O + O2 ("Catalase.").

    Read More

  • Investigating Factors that Affect the Rate of Catalase Action

    2665 Words  | 6 Pages

    This enzyme speeds up the break down of hydrogen peroxide into water and oxygen, as enzymes are biological catalysts. [IMAGE]The reaction: Hydrogen peroxide Water + Oxygen Catalase -------- [IMAGE] 2H2O2 2H2O + O2 Apparatus: Hydrogen Peroxide, Several sticks of celery, Stand, boss and clamp, 100ml conical flask, 25cm3 burette, 1800cm3 beaker, Rubber bung with delivery tube, Distilled water, Large container filled with water, 10cm3 measuring cylinder, 10cm3 syringe, 20cm3 syringe, Blender, Knife, Ceramic tile, Electronic balance (correct to 2 decimal places), Sieve, Stopwatch/timer. The variables: There are many possible variables in this investigation, such as pH, temperature, the concentration of substrate and the concentration of the enzyme.

    Read More

  • The Effect of a Catalase on the Breakdown of Hydrogen Peroxide

    1121 Words  | 3 Pages

    Introduction / Background Information. This is an experiment to examine how the concentration of the substrate Hydrogen Peroxide (H2O2) affects the rate of reaction of the enzyme Catalase. In this experiment I will be using yeast as a source of catalase. Enzymes are catalysts which speed up specific reactions. Enzymes such as catalase are protein molecules, which speed up a specific reaction within the cell.

    Read More

  • Potato Osmosis Lab

    836 Words  | 2 Pages

    In order to understand the concept of the three solutions; hypertonic, hypotonic, and isotonic, used in the experiment one must learn to understand the concept of how and why molecules move by processes of osmosis. As conducted, this hands-on experiment will help you examine water molecule movement when exposing the plant cell that make up the potato to be either hypertonic or hypotonic solutions. Although, plant cells have rigid cell walls external to the plasma membrane versus animals that do not make a difference that can result in an opposite outcome when being placed in these two solutions. I believe that experiment b (potato mixed with salt and water) will be more affected since it will conflict

    Read More

  • Investigating the Effect of Sugar Solution on the Weight and Size of Potato Cells

    3501 Words  | 8 Pages

    Investigating the Effect of Sugar Solution on the Weight and Size of Potato Cells Aim: To investigate whether the different concentration of sugar solution will affect the weight and size of the potato cells. General background information: Osmosis is defined as the movement of water or any other solution's molecules from an area in which they are highly concentrated to a region in which they are less concentrated. This movement must take place across a partially permeable membrane such as a cell wall, which lets smaller molecules (E.g. water) through but does not allow larger solute molecules to pass through. The molecules will continue to diffuse until the area in which the molecules are found to reach a state of equilibrium, meaning that the molecules are equally distributed throughout the cell, with no area having a higher or lower concentration than any other hence equal. Hypothesis/prediction: For this particular investigation I believe that the lower the concentration of the sugar solution in the test tube the mass of the potato will be greater and the longer the potato cells will be.

    Read More

  • Potato Cells Lab Report

    829 Words  | 2 Pages

    Potato cores are made of countless cells. A semi-permeable layer called the cell membrane surrounds each potato cell. The cell membrane acts as a barrier between the cytoplasm and its environment. It also gives the cell its structure. The reason why the cell membrane is semi-permeable is because it is mainly composed of a phospholipid bilayer that only allows non-polar and small molecules to pass through it. Fortunately, the cell membrane also contains many transport proteins that allow charged and larger molecules such as water to move into the cell. Other proteins in the cell membrane include glycoprotein and enzymes which are involved in cellular functions such as recognition of other cells and chemical messaging. Another component of the cell

    Read More

  • Enzyme Catalyzed Reaction Lab Report

    514 Words  | 2 Pages

    In this lab, it was determined how the rate of an enzyme-catalyzed reaction is affected by physical factors such as enzyme concentration, temperature, and substrate concentration affect. The question of what factors influence enzyme activity can be answered by the results of peroxidase activity and its relation to temperature and whether or not hydroxylamine causes a reaction change with enzyme activity. An enzyme is a protein produced by a living organism that serves as a biological catalyst. A catalyst is a substance that speeds up the rate of a chemical reaction and does so by lowering the activation energy of a reaction. With that energy reactants are brought together so that products can be formed.

    Read More

  • Lab: Enzymes – Protein Catalysts

    870 Words  | 2 Pages

    Abstract: Enzymes are catalysts therefore we can state that they work to start a reaction or speed it up. The chemical transformed due to the enzyme (catalase) is known as the substrate. In this lab the chemical used was hydrogen peroxide because it can be broken down by catalase. The substrate in this lab would be hydrogen peroxide and the enzymes used will be catalase which is found in both potatoes and liver. This substrate will fill the active sites on the enzyme and the reaction will vary based on the concentration of both and the different factors in the experiment. Students placed either liver or potatoes in test tubes with the substrate and observed them at different temperatures as well as with different concentrations of the substrate. Upon reviewing observations, it can be concluded that liver contains the greater amount of catalase as its rates of reaction were greater than that of the potato.

    Read More

  • Catalase Lab Report

    2256 Words  | 5 Pages

    The Effect of pH on the Activity of Catalase Planning Experimental Work Secondary Resources Catalase is a type of enzyme found in different types of foods such as potatoes, apples and livers. It speeds up the disintegration of hydrogen peroxide into water because of the molecule of hydrogen peroxide (H2O2) but it remains unchanged at the end of the reaction.

    Read More

  • Potato Osmosis Lab Report

    754 Words  | 2 Pages

    Osmosis in Potato Tubes Osmosis: Osmosis is the movement of water molecules through a semi-permeable membrane from a high concentration to a low concentration. Diagram: [IMAGE] [IMAGE] Aim: To see the effects of different concentration of sugar solution on Osmosis in potato tubes. Key factor: In the investigation we change the sugar solution from: 0%-10%-20%-30%-40%-50% this is the independent variable; the dependant variable is the change in mass. Prediction: I predict that all the potato tubes in pure water or low concentration sugar solution will swell because water enters their cells by osmosis.

    Read More

  • How the Concentration of the Substrate Affects the Reaction in the Catalase Inside Potato Cells

    1162 Words  | 3 Pages

    How the Concentration of the Substrate Affects the Reaction in the Catalase Inside Potato Cells

    Read More

  • Enzyme Lab Report Potato Lab

    703 Words  | 2 Pages

    Purpose: This lab gives the idea about the enzyme. We will do two different experiments. Enzyme is a protein that made of strings of amino acids and it is helping to produce chemical reactions in the quickest way. In the first experiment, we are testing water, sucrose solution, salt solution, and hydrogen peroxide to see which can increase the bubbles. So we can understand that enzyme producing chemical reactions in the speed. In the second experiment, we are using temperature of room, boiling water, refrigerator, and freezer to see what will effect the enzyme.

    Read More

  • Importance Of Chemical Kinetics

    803 Words  | 2 Pages

    One vital process in the human body observed in chemistry is the idea of chemical kinetics. Chemical kinetics is the study of the rate of reactions, or how fast reactions occur.1 Three factors that affect chemical kinetics are concentration, temperature, and catalysis. As the concentration of a substance increases, the rate of the reaction also increases.1 This relationship is valid because when more of a substance is added in a reaction, it increases the likelihood that the

    Read More

More about Potato Enzyme Lab

Open Document