The percentage of successful collisions may increase or decrease depending on the circumstances of the collisions. Collision theory, proposed by Max Trautz and further added to by William Lewis in 1918, is proven in the results. The greater concentration, or particles in a substance, increases the risk of collisions in a set time. However only a proportion of collisions result in successful chemical bonding. The increased number of particles leads to more collisions and increases the rate of successful collisions and therefore consequently decreasing the rate of
With more solutes in the blood there will also be an increase in blood pressure. The ANP will help excrete water and the abundant amounts of salts that are in the body. As the blood travels to the kidney and reaches the nephron most of the filtrate will be extremely concentrated as it gets filtered through the glomerulus. Once the filtrate goes through tubular reabsorption only a selective few of solutes such as Na+, Cl-, and glucose (etc.) will be reabsorbed into the body, but other wastes such as caffeine will pass through when it reaches the tubular secretion step.
If it is affected, the experiment is not fair anymore. Size of beaker mL Using same volume of beakers To ensure that the diameter of the beakers are the same so that when same amount of hydrogen peroxide is poured into the beaker, the height of the solution would remain the same. As if the height changes, the distance the discs has to rise would change which would affect the time taken to reach to the surface. Volume of water mL Use a measuring cylinder to measure To make sure that the amount of catalase on the filter paper disc are nearly the same every time as the volume of water would affect the production of catalase.or The time taken for the disc to rise to the surface would change if it is different every time. Volume of yeast mL Use an electric balance to measure To make sure that the amount of catalase on the filter paper disc are nearly the same every time as the volume of yeast would affect the production of catalase.
TLC was used to identify the actual unknown product as well as other products/reactants present in the filtered solution. The procedure was conducted by placing a TLC plate in a developing chamber that is filled with a small amount of solvent. The solvent cannot be too polar because it will cause spotted compounds on the TLC plate to rise up too fast, while a very non-polar solvent will not allow the spots to move. The polarity of the spots also determines how far it moves on the plate; non-polar spots are higher than polar ones. After spots on the TLC form, the Rf values are calculated and used to analyze the similarity of the compounds.
Also, a few of the constants in the experiment will be the amount of water, and amount of tablets. The hypothesis that the scientist will be testing is that alka seltzer tablets with smaller particles will react faster than tablets with larger particles. This would happen because the water would not have to break down the tablets as much as it would with the tablets with larger particles. Without having to break down the tablet, the water could begin reacting immediately with the tablets having smaller particle size. The scientist will do this by placing tablets of alka seltzer, each with different particle sizes, into water, and measuring the
And finally, it helps us regulate body temperature and it eliminates wastes (not like urine but sweat). These functions do all super important things because if we didn't have any skin, hair, sweat glands, or nails we could easily get very hurt. The integumentary system interacts with many other systems than just one. The integumentary works with the circulatory system by allowing it to transport blood into and out of the cells and also allow carbon to get out of the blood and into the air by letting the skin take the carbon out by sweat. With the skeletal system, it keeps the bones hard and strong and also, produces the vitamin d. The nervous system controls the body temperature.
Factors that Influence Enzyme Function There are several factors that affect the enzyme function as well as the rate at which the enzyme reactions proceed. Some factors include temperature, pH, enzyme concentration, substrate concentration, and the presence of any inhibitors or activators. Temperature Temperature affects greatly as the temperature rises, reacting molecules have more and more kinetic energy. This increases the chances of a successful collision, thus the rate increases. This factor also have a certain optimal temperature.
The ether injection technique was totally different from ethanol injection since ether was immiscible with aqueous solvent. Moreover, for the ether injection, ether was slowly injected while for the ethanol injection, ethanol was rapidly injected to an excess of buffer (Dua, Rana, & Bhandari, 2012). The advantage of ether injection compared to ethanol injection was that it can produce liposomes with high proportion of large unilamellar vesicles (LUV) and thus can serve high encapsulation efficiency (A. Laouini et al.,
Few thousands of pounds per square inch must be pressurised in order to obtain a satisfactory flow rate. Diffusion is the process by which the rate of distribution of drugs between stationary and mobile phase is controlled. A faster and effective separation can be achieved if the diffusion is minimized. When compared to classical column chromatography high performance liquid chromatography is so called because of its improved performance. Due to high-pressure pumping system and sensitive detectors have transferred liquid chromatography into high speed, accurate, efficient and highly resolved method of
Contents POE TASK 1 3 Solids, Liquids and Gases 5 Classroom Activity 1 5 Change of state 5 Activity 2 5 The water cycle 6 Activity 3 6 Outcomes of activity 1 7 Outcomes of activity 2 7 Outcomes of activity 3 8 Memorandum 8 Activity 1 8 Activity 2 9 Activity 3 9 Task 2.2 9 POE TASK 3 10 Bibliography 12 POE TASK 1 The purpose of this essay is to describe my perception concerning science before my lectures that discussed science in detail. This essay will further discuss how my perception has changed after. Furthermore it will discuss the importance of Natural science and why it should be taught in schools. I was in a position where, I would think that science was just false so that mankind could show his ‘intelligence’. I thought a