Exploration How do increasing sucrose concentrations of 0.0 mol dm3‚ 0.2 mol dm3‚ 0.4 mol dm3‚ 0.6 mol dm3 and 0.8 mol dm3 affect the osmolarity point of potato cells‚ where it is investigated how osmosis changes the weight of the potato cells‚ measured by the percentage change between the initial and final mass of the potato? Independent Variable: Increasing sucrose concentrations Dependant Variable: Mean percentage change in mass of potato cells All cells have a protective barrier‚ one which
Premium Chemistry Concentration Solution
My group and I are carrying out an investigation to find out how different concentrations of glucose affect osmosis in potato cells. Osmosis is the passive process of diffusing water which means within this experiment particles of water will move from a lower concentrated area to an area of higher concentration ; in this case it will be a concentration of glucose. Diffusion is when particles move from an area of high concentration to low concentration ; for example when a smell of cooking spreads
Premium Concentration Cell Cell wall
perspectives on climate change. Greenhouse Effect Because of the transparency of the atmospheric gasses to visible light‚ sunlight is able to largely penetrate the earth’s atmosphere and reach the ground‚ where it is absorbed heated up‚ and then re-emitted in the arrangement of infrared radiation. In this
Premium Climate change Global warming Greenhouse gas
Introduction: The purpose of this experiment is to measure the effects of changes in temperatures and pH on enzyme activity in skeletal muscle‚ particularly the activity of lactate dehydrogenase (LDH). LDH is a glycolytic enzyme which converts pyruvate to lactate in the following equation: LDH Pyruvate+ NADH ------------ Lactate + NAD The reaction above can move in both directions‚
Premium Enzyme
with a larger density will increase the temperature of the ice faster than salts with a smaller density because the heavier salts will sink through the ice faster since they have a heavier density than water and stop the molecules from staying ice faster‚ consequently raising the temperature of the solution‚ than lower density salts would. . The data I collected shows potassium chloride‚ which has a density of 1.98 g/㎤‚ increased the solution’s temperature at a faster rate than any of the other solutions
Premium Chemistry Chemical reaction Temperature
ever wondered how much sugar it takes to overflow a mug in different water temperatures. I thought it would be cool to find out so i did an experiment. I used five diffferent temperatures of water 1.) cold tap water 2.) refrigirater water 3.)freezer water 4.) hot tap water and 5.) boiling water. I filled up a 2 cup mug with 1 3/4 cups of each type of water and added sugar until the mug overflowed. Purpose: I chose this experiment because I thought it would be fun to find out how much sugar was
Premium Valve Science Experiment
Temperature and Thermometers The Temperature of an object is a measure of the hotness or coldness of that object. An alternative way to think of temperature is to say that “the temperature of an object is a number – on some manmade scale – that indicates the hotness of the object”. ‘Hotness’ in turn is a measure of the kinetic energy of the molecules of the material. Note: You must use the term ‘hotness’.* The SI unit of temperature is the Kelvin (K)* Relationship between degrees Celsius
Premium Temperature Fahrenheit
treatment towards the monster‚ Frankenstein noticed that by alienating the monster‚ he applied tension on society because the monster was ravaging through villages and towns. Frankenstein realizes his mistake and he decides to give him a chance although he does not forgive the unspeakable crimes
Premium Frankenstein Mary Shelley English-language films
What effect does temperature have on the oxygen production of enzymes in an animal’s liver? A temperature which is too high would be able to produce little to no oxygen because of the extreme temperature. Just like a temperature too high‚ a temperature which is too low would also produce little to no oxygen for the same reason. Animals that have livers are considered warm-blooded‚ with very warm temperatures; therefore it would make sense for a warm temperature to produce the most oxygen; but one
Premium Gas Measurement Enzyme
Mitosis Review 1. So why does cell division occur? Cell division occurs because an organisms such as plants‚ animals and such need to grow on a molecular level in order for them to continue thriving. For example‚ new cells are created with the intention of replacing old cells and tissues‚ with fresh and functioning ones... for most part. In humans and other organisms‚ organ cells‚ muscle cells‚ bone cells and such are constantly replace for growth and prolongation of proper function. Also‚ embryos
Premium Eukaryote Chromosome Mitosis