An investigation into the effects of sugar concentration on yeast activity Introduction: Yeasts are eukaryotic micro organisms belonging to the kingdom fungi. Yeasts live on sugars and produce ethanol and carbon dioxide as by-products. [James Mallory‚ 1984]When Yeasts are given water and sucrose they convert the sucrose into glucose then convert the glucose into carbon dioxide and ethanol following the following reaction: C₆H₁₂O₆ ( 2(C₂H₅OH + CO₂ [Brady Burkhart‚ Terrell Grayson and Eric Kimler
Premium Yeast Carbon dioxide Oxygen
to investigate the effects of osmosis on potato cell sap. I will test potato cylinders in different strengths of sucrose solution and record any results in a table. I will then analyse my findings and work out the isotonic point of the potato cell sap. Prediction I have looked at my scientific knowledge from the background theory I carried out and I will base my prediction upon this information. In this experiment‚ I expect the different concentrations to show fairly noticeable effects on the lengths
Premium Concentration Sucrose Measurement
Kenishia Pascal 10x3. Investigating How Different Concentration Effects The Rate Of Reaction. Strategy A Possible Factors * Source of catalase * Concentration * Surface Area of enzyme * Concentration of enzyme * pH * Temperature Chosen Factor We chose to investigate the concentration of enzyme as we had previously investigated the optimum temperature for catalase in the preliminary investigation. Concentration of enzyme is also fairly easy to investigate‚ as
Premium Enzyme PH Catalase
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Effect of Substrate Concentration on Catalase Aim: An experiment to find out how the concentration of hydrogen peroxide affects the rate of reaction of the enzyme catalase. Background Information: Enzymes such as catalase are globular protein molecules with catalytic properties. A catalyst is a substrate which can alter the rate of reaction without itself undergoing any permanent change. As they are not changed
Free Enzyme Hydrogen peroxide PH
an area of higher concentration to areas of lower concentration. Osmosis is a special kind of diffusion where water moves through a selectively permeable membrane (a membrane that only allows certain molecules to diffuse though). Diffusion or osmosis occurs until dynamic equilibrium has been reached. This is the point where the concentrations in both areas are equal and no net movement will occur from one area to another. If two solutions have the same solute concentration‚ the solutions are
Premium Osmosis Diffusion Chemistry
GCSE - Human Physiology and Health An experiment to investigate what affect sucrose solution has on potato tissue. Background Osmosis is the movement of water molecules‚ across a partially permeable membrane from a region of high concentration of water to a low concentration of water molecules. A partially permeable membrane is a membrane with holes in it small enough for only water to go through it. Big molecules like glucose cannot fit through it. Osmosis allows plants to take in water
Premium Osmosis Chemistry Concentration
Although a blight affected the potato crops of Ireland during the 1840’s‚ the mass starvation was the result of British governmental policy‚ that forced many Irish to immigrate to America. Their immigration had many positive and negative effects on the American people and the economy. Ireland was a country of poverty and nearly half of the families in rural areas were living in mud houses with no windows or furniture. According to the Constitutional Rights Foundation‚ Ireland was not an industrialized
Premium Ireland England Famine
The Effect Of Substrate Concentration On The Activity Of The Enzyme Catalase A Level Biology Project Aims This is an experiment to examine how the concentration of the substrate hydrogen peroxide affects the rate of reaction of the enzyme catalase. Background Information Enzymes such as Catalase are protein molecules which are found in living cells. They are used to speed up specific reactions in the cells. They are all very specific as each enzyme just performs one particular reaction. Catalase
Premium Hydrogen peroxide Enzyme Oxygen
Spiced Sweet Potato Flapjacks Ingredients: • 6 eggs‚ whisked • 2 sweet potatoes‚ roasted and peeled • 1 teaspoon cinnamon powder • 1 tablespoon raw honey • 1 teaspoon nutmeg • 2 tablespoons olive oil Directions: 1. Place the roasted sweet potatoes in a bowl and use a potato masher to mash the meat. 2. Mix in the eggs and honey. Season the batter with nutmeg and cinnamon powder then mix well. 3. Heat the oil in a pan over medium-high flame. Pour 2 tablespoons of the batter into the pan and let
Premium Black pepper Black pepper Garlic
In order to enhance the effect of the separation of fine-grained material‚ gravity separation‚ centrifugal force field of the spiral chute‚ centrifuges‚ cyclone and other gravity separation equipment. Gravity separation is often said that the re-election‚ it is the relative density‚ particle size‚ shape differences between be separation of mineral particles and their media (water‚ air or other relatively high density liquid) movement in the rate and direction different‚ so that the mutual separation
Premium Iron Zinc Aluminium