Ph Lab Report Bryon Kim 123013 B(2) Biology Background information/Research PH paper (litmus paper) determines how acidic or how basic a substance is. The paper changes color accordingly to color code on the pH scale. The pH scale starts from 0 to 14. The lower the number the more acidic it is. Zero is the most acidic‚ and 14 is the most basic while 7 is the neutral number for example water. Examples of an acid is lemon juice or multi purpose cleaner. Examples of a basic substance is shampoo or liquid soap
Premium Green Purple Blue
For the preparation of the filtrate solution at the beginning of the class our Instructor‚ Marshall Douglas added about four to five strawberries in the blender along with 100 ml of detergent/ enzyme/ salt solution. They were blended until thoroughly homogenized if foaming occurred more detergent solution was added to prevent it. Then the blended solution was poured into a beaker and left to incubate at 60C for 15 minutes. Also‚ the mixture solution was cooled on ice for 5 minutes and filter through
Premium
Lab Report: Understanding Photosynthesis Gen Biology Lab Abstract: This lab was called photosynthesis: understanding photosynthesis. It is a highly complex process that needs to be broken down in many steps to understand how it works. This lab covers the big components in photosynthesis including carbon dioxide intake‚ light consumption‚ and varying pigmentation. Introduction: Photosynthesis is a huge concept to learn and understand in the field of biology. Plants have their own special
Premium Leaf Color Chlorophyll
AP Biology Lab: Catalase (Enzymes) Abstract In this laboratory exercise‚ studies of enzyme catalase‚ which accelerates the breakdown of hydrogen peroxide into water and oxygen. The purpose was to isolate catalase from starch and measure the rate of activity under different conditions. The laboratory was also conducted in association with a second laboratory that measured the effects of an inhibitor on the enzymes. Changes in temperature and pH along with Substrate Concentration and Enzyme
Premium Enzyme
Background The melting point of a compound is the temperature at which the solid is in equilibrium with its liquid. A solid compounds changes to a liquid when the molecules acquire enough energy to overcome the forces holding them together. A mixture melting point is useful in confirming and used to indentify an unknown compound‚ which we will be doing in this particular experiment. Purpose Measure the melting points of pure benzoic acid and pure mandelic acid. Determine the eutectic composition
Premium Chemical compound Liquid Temperature
will have an advantage and will be common. (Understanding Evolution) Therefore‚ the question to be tested will be if you count the number of stomata of the same species of leaf at different stages of life will the number of stomata be different? My hypothesis is if we count the number of leaf stomata at three different stages of life then the number of stomata will be less as the leaf gets older because the leaf is dying. (Understanding Evolution) Procedure Approximately three leaves of the where gathered
Premium Leaf Photosynthesis Carbon dioxide
Enzyme B produced the most maltose at a high temperature (100 ºC) and an acidic pH. Enzyme C produced the most maltose at 37 ºC (body temperature) and a pH of 7 (neutral). Conclusion In a prior lab‚ it was given that the enzyme Aspergillus oryzae (fungus) works best at warm temperatures and an acidic pH‚ porcine (pig) works best at body temperature (37 ºC) and
Premium Enzyme Chemical reaction Metabolism
American Oil Chemists Society‚ Champaign‚ 1996‚ Method Ca 5a–40 3. W. Horwitz‚ J. Assoc. Off. Anal. Chem. 59 (1976) 658–661. 4. R. A. Robinson and R. H. Stockes‚ Electrolyte Solutions‚ Buterworthy Scientific Publications‚ London‚ 1959. 5. Ya. I. Tur’yan‚ O. Yu. Berezin‚ I. Kuselman‚ and A. Shenhar‚ J. Am. Oil Chem. Soc. 73 (1996) 295–301. Kuselman‚ Croat. Chem. Acta 76 (2003) 329–334. 8. H. S. Harned and B. B. Owen‚ The Physical Chemistry of Electrolytic Solutions‚ 3rd ed.‚ Reinhold Publishing Corporation
Premium PH Titration Acid dissociation constant
Transpiration Formal Lab Report By Jessica Tran Introduction When water is transported from the roots to the mesophyll cells in the leaves‚ it is evaporates out the stomates‚ called transpiration‚ to create a lower osmotic potential. Osmotic potential is the part of the water potential of a tissue that results from the presence of solute particles. Even though the stomates open to release water‚ it also brings in carbon dioxide to produce sugar and oxygen through a process of photosynthesis
Premium Plant physiology Osmosis Xylem
Population Genetics of the Alu Insertion on the PV92 region of Chromosome 16 Abstract: PCR is a laboratory method used to amplify a small‚ specifically targeted‚ amount of DNA. It has three steps‚ the denaturing of the template DNA‚ the annealing of the primers to the DNA templates and the extension of the new DNA by Taq DNA polymerase. The Alu insert on the PV92 region of chromosome 16 is targeted and its frequency is measured according to the Hardy-Weinberg equilibrium in the Vanier HTK population
Premium DNA Polymerase chain reaction DNA replication