Potato Enzyme Lab Enzymes are protein catalysts that speed up chemical reaction in living organisms. The purpose of this lab was to; observe the breakdown of hydrogen peroxide toxin by potato’s enzyme catalase‚ determine factors that influence how quickly the reaction takes place‚ and determine factors that influence how well enzymes function. The first test‚ we were supposed to see what would happen when we add sand in hydrogen peroxide. We filled a test tube with 5mL hydrogen peroxide and we added
Premium Catalysis Catalase Chemical reaction
Investigating the Water Potential of a Potato. I have been asked to investigate the water potential of a potato. During my investigation I will not actually be able to measure a value for‚ as it is a pressure value (kPa). Osmosis is a special form of diffusion involving only water molecules. It is defined as "The passage of water from a region of high water potential to a region of low water potential through a partially permeable membrane" Definition of Water Potential. The potential for water
Premium Osmosis Cell wall Cell
may imprint on a child’s mind as what is normal. The child may start to believe that is all they are capable of and all attempts to the contrary are meaningless. A mindset established from a depressive mindset. The multiple generations displayed in Potato Eaters amplified this depressing‚ cathartic thought into the inescapable vile it takes its victims as. In a type of antithesis to the parents who works hard at something they love‚ the attitude helps make a difference between the children emerging
Premium Family Childhood Parent
The topic of my STEM fair project is cookie taste and appearance. “ How does cream butter‚ melted butter‚ margarine‚ and shortening affect the taste and appearance of chocolate chip cookies”. The purpose of this experiment is to see which type of butter substance is best for bakers to use to make the best chocolate chip cookie. The information from this project will help people who love to bake‚ to find the best way to make cookies that their eaters will enjoy the most. All bakers around the
Premium Butter Baking
change‚ means there is no net loss or gain of water. Introduction This study shares the results of an effort to understand diffusion and osmosis in general. It focused more into osmosis in plants cell‚ and how to indirectly measure osmolarity in potato tuber tissue. Osmosis is the diffusion specifically of water across a membrane. Diffusion occurs when certain substance‚ such as an ion‚ is more concentrated on one side of membrane. If the membrane allows this ion through‚ the ions will move from
Premium Osmosis Cell wall Molecular diffusion
If the pH level of the solution is more basic‚ then the potato membrane will weigh less due to osmosis. Our null hypothesis was: If the pH level of a solution is either acidic or basic‚ then it will have no effect on the weight. The independent variable was the different solutions of different pH values. The dependent variable was the weight of the potato‚ which was measured in grams. The baseline of this experiment is the weight of the potato when in the milk solution because milk has a neutral pH
Premium Chemistry Concentration Osmosis
Exchange‚ which started mostly after 1492 when Columbus traveled from the Old World to the New World‚ can be defined as the time when various items such as plants‚ technologies and food were carried from the New World to the Old‚ and vice-versa. The potato is a great example of the Columbian Exchange‚ seeing as how it was carried from the New World to the Old World‚ and had a significant impact on Europe‚ as well as other countries from various continents. Potatoes were first known to be grown in the
Premium Potato French fries Europe
Potato Catalysis Lab Pre-Lab Assignment Background Information: An enzyme is catalytic protein. It is the most important type of molecule found in living cells. Cells would not be able to function without enzymes. Enzymes speed up or slow down chemical reactions of the cells. It is usually easy to identify the names of enzymes because they end in -ase. The enzyme that acts upon the substrate hydrogen peroxide is usually called catalase. This enzyme is found in both plants and animals
Premium Enzyme Catalysis Metabolism
Aim To observe and measure the effect of osmosis on the mass of potato using a starch solution. Introduction In order to measure the effect of osmosis‚ eighteen pieces of potato were cut and placed in six groups‚ each group of three pieces cut to weigh as close as possible to one another. For each potato group‚ a test tube was half filled with a starch solution varying in concentration from 0% (water) to 1%. Hypothesis Through osmosis
Premium Organelle Cell Eukaryote
Osmosis of a Potato cell. Hypothesis is that the potato in saltwater is going to show that it will break down the cells of the potato. Osmosis is the diffusion of a solvent through a semi-permeable membrane‚ from a solution of low solute concentration to a solution with high solute concentration‚ up a solute concentration gradient. Net movement of solvent is from the less-concentrated to the more-concentreated.‚ which tends to redure the difference in concentrations. This effect can be countered
Premium Osmosis Cell wall