17th‚ October 2010 Margarita SA: VOL RATIO AND AGAR BLOCKS Conclusion: For this experiment the agar jelly had to be cut in to five different block sizes‚ after that has been done we had to add all five blocks in to the test tube with the acid and time to see how long it would take for the colour to change from a pinky purple to clear. From this experiment I learnt that the bigger the size of the jelly is the
Premium Chemistry Ethanol Water
Introduction For this experiment‚ we are going to determine the effect of temperature on solubility‚ to be done in a chemical by dissolving a solute in a definite amount of solution which is saturated. Specifically‚ the goal of this experiment is to prepare a saturated solution of Na2C2O4 in water at different temperatures‚ determine the effect of temperature in solubility‚ and to apply Le Chatelier’s Principle. We can do all this by simply titrating a certain amount of standard KMnO4‚ and measuring
Premium Titration Erlenmeyer flask Potassium permanganate
Title: Showing Cellular Respiration through Alcoholic Fermentation Abstract: The experiment was conducted to determine the impact different yeast amounts had on yeast fermentation. It was hypothesized that the more yeast added the more CO2 would be produced. The carbon dioxide production was measured in the fermentation of yeast with solution of no yeast in test tube 1‚ 1mL yeast in test tube 2‚ and 3mL of yeast in test tube 3 over a period of twenty minutes. All of the yeast amounts produced
Premium Cellular respiration Carbon dioxide Metabolism
substances catch fire at a different temperature. The lowest temperature at which a substance catch fire is called its ignition temperature. Combustible substances do not catch fire or burn as long as its temperature is lower than its ignition temperature. Now let me do an activity which tells you why reaching ignition temperature is necessary to burn an object. You know that paper catch fire with a flame. Let me
Premium Oxygen Chemical reaction Nitrogen
Heat‚ Temperature‚ and Phase Changes Assessment Practice Answer This graph shows what happens to the temperature of the water‚ while it was boiling in a kettle‚ as heat energy was being added to it and what the water was doing will it began to warm and change states. During a phase change‚ the temperature remains mainly constant. This occurs because the heat energy is used to break the bonds between the ice molecules as they turn into a liquid phase. It is possible to constantly
Premium Water Temperature Energy
EXPERIMENT-1 Pressure-Temperature Relationship for Steam OBJECT: The objective of this experiment is to determine the relationship between saturation pressure and saturation temperature of the wet steam. APPARATUS: Pressure-temperature apparatus with pressure gauge and thermometer. [pic] THEORY: In order to determine the relationship between the saturation temperature and pressure of wet steam it is necessary to obtain a number of corresponding values of the
Premium Thermodynamics Pressure
Cell Respiration | | | | | | Brian Suarez Completed with Yeonah Suk‚ Michelle Lee‚ and Agron 12/14/12 SBS21X (Period 1 & 2) Ms. Brady Brian Suarez Completed with Yeonah Suk‚ Michelle Lee‚ and Agron 12/14/12 SBS21X (Period 1 & 2) Ms. Brady Introduction To be able to carry on metabolic processes in the cell‚ cells need energy. The cells can obtain their energy in different ways but the most efficient way of harvesting stored food in the cell is through cellular respiration. Cellular
Premium Cellular respiration Adenosine triphosphate Carbon dioxide
P5- Outline relevant legislation in relation to preparing‚ cooking and serving food. P6- Explain safe practices necessary in preparing‚ cooking and serving food in a health or social care setting. In this assignment I am going to be outlining and explaining safe practices necessary in preparing‚ cooking and serving food in a health or social care setting and relevant legislation in relation to preparing‚ cooking and serving food. Safe practices of food preparation‚ cooking and service Hygiene
Premium Food safety Hygiene Foodborne illness
Name: ________________________ Class: ___________________ Date: __________ ID: A GENERAL BIOLOGY PRACTICE MIDTERM TEST 2010-2011 Multiple Choice: Identify the choice that completes the statement or answers the question. ____ 1. The work of scientists usually begins with a. testing a hypothesis. b. careful observations. c. d. creating experiments. drawing conclusions. ____ 2. What is the term for all parts of Earth inhabited by living things? a. population b. ecosystem c. biosphere
Premium Cellular respiration Photosynthesis Cell
AP Biology Cellular Respiration – Part 1 (Associated Learning Objectives: 1.15‚ 1.16‚ 2.2‚ 2.4‚ 2.5‚ 2.13‚ 2.14‚ 2.22‚ 4.1‚ 4.4‚ 4.17) Important Content from previous topics: 1) The electron transport chain is a series of redox reactions‚ occurring on a membrane‚ intended to create a concentration gradient and there in a source of potential energy. 2) Redox reactions are just the transferring of electrons from one molecule to another molecule. 3) Carbohydrates‚ sugar‚ are primary energy
Free Cellular respiration Adenosine triphosphate Metabolism