The effectiveness of lipase on temperature Abstract Enzymes are biological catalyst that speeds up the rate of reaction. Different enzymes work best at different temperatures, which is also called an optimum temperature. Different enzymes also have different functions. Lipases are enzymes, needed to break down lipids (fats and oils) into the products - glycerol and fatty acids. They work best at room temperature around 36-40 C. Introduction For this experiment, I will be looking at how the change in temperature affects the rate of reaction.
For example if you take a cup of water and splashed it on a wall, the water molecules would not bounce off due to adhesion. Surface tension is a measure of how difficult it is to stretch or break the surface of liquid. In other words it behaves like a flexible sheet allowing objects thats denser than it to sit on the surface of water. Specific Heat is the amount of heat that must be absorbed or lost for 1g of that substance to change its temperature by 1 celsius.Heat of vaporization is
Water flows over the gills and is continuously pumped by the mouth. This movement can be detected and measured thus providing us the ventilation rate. Carbon dioxide produced by the fish diffuses from the blood into the water passing over the gills, removing it from the fish’s body. This counter-current exchange of gases ensures oxygen consumption and carbon dioxide extraction. In a fish, the metabolic rate depends on the temperature of the water.
The oil will be in the first layer, in short, oil will float on the water. Because of the greater density of water. If I stir the mixture, the water and oil will be mixed together, but they will not
Measure and record the mass of the test tube and metal. 5. Place the test tube containing the metal into the beaker of water and continue heating (10 min). Leave the test tube in the boiling water bath while you complete steps 6 and 7. 6.
3. Evaluate the hypothesis and the procedure performed. Hypothesis: If the mass of the metal is greater, then the temperature change of the water will increase. Safety: Glasses must be worn, and loose clothing restrained for the Lab Exercise! Materials: 250mL Beaker Test Tube Calorimeter Burner, Ring Stand, and Wire Gauze Thermometer Balance Procedure: 1.
If the compounds are made to collide faster, by way of stirring, then theoretically the reaction as a whole will start faster and come to completion faster. Aparatus Stand with clamp Stopwatch Gas collection tube (rubber tube) Rubber stopper Marble chips (CaCo3) Hydrochloric Acid (HCl) Test tube Measuring cylinder (100ml) Method 1. Fill up a bucket with water 2. Set up the stand with the clamp next to the bucket so that the clamp is directly above water 3. Put the open end of the measuring cylinder upside down, filled with water, in the water 4.
1. BASIC TOOLS AND SAFETY A. Laboratory Glassware Borosilicate glass is the most commonly used material for laboratory apparatus such as beakers, flasks, pipets, etc. It is stable to hot solutions and to rapid changes in temperatures. B. Volumetric Glassware Volumetric flasks are designed to contain an accurate volume at the specified temperature (20oC or 25oC) when the bottom of meniscus (the concave curvature of the upper surface of water in a column caused by capillary action or surface tension) just touches the marked "fill" line across the neck of the flask.
The Effect of Different Types of Insulation on Heat Retention Aim I am going to investigate the effect of different types of material on heat retention. "Which of the four materials, cotton, foam, aluminium foil and bubble wrap, is the best insulator?" Hypothesis The four materials tested in this experiment are cotton, foam, aluminium foil, and bubble wrap. Materials that are good insulators will absorb heat slowly and therefore the water inside the cup will stay warm for a longer period of time. Materials vary in their heat conductivity and in their insulation capacity.
Name: Muhammad Izzuddin bin Ab Aziz Class: M11K Title: Investigation of Osmosis in Quail’s egg. Research question: What is the effect of different concentrations of sodium chloride on a de-shelled quail’s egg? Objectives: * To observe the effect of different concentrations of sodium chloride on a de-shelled quail’s egg. * To explain the effects in terms of osmosis. Introduction: Osmosis is the diffusion of a solvent across a membrane to a region of higher solute concentration.