Lab Write Up

When the pH is not at its optimum, the differing pH's will disrupt the bonding between the R groups of the amino acid causing its structure and the shape of the activation site to change

The protein molecules in many foods provide the amino acid building blocks required by our own cells to produce new proteins. To determine whether a sample contains protein, a reagent called Biuret solution is used. Biuret solution contains copper ions. However, the chemical state of the copper ions in Biuret solution causes them to form a chemical complex with the peptide bonds between amino acids (when present), changing the color of the solution. Biuret solution is normally blue, but changes to pink when short peptides are present and to violet when long polypeptides are present.

The purpose of the lab was to determine the ratio of air to acetylene results in complete combustion of acetylene gas. The balanced chemical equation for this experiment was C2H2(g) + O2(g) --> CO2(g)+ H2O(l). Complete combustion is the reaction of an element or compound with oxygen to produce the most common oxides and energy. Complete combustion occurs when the fuel and oxygen combine in exact proportions to completely burn the fuel, which leaves a clean test tube. Incomplete combustion is the reaction of an element or compound with oxygen to produce some oxides with less oxygen than the most common oxides. Incomplete combustion occurs when there is not enough oxygen to react

3. Experiment: Use the Gizmo to find the carrying capacity with Ample, Moderate, and Little land. List the carrying capacities below.

What observations can you make regarding the gene pool and gene frequency of the surviving individuals?

The mole is a convenient unit for analyzing chemical reactions. Avogadro’s number is equal to the mole. The mass of a mole of any compound or element is the mass in grams that corresponds to the molecular formula, also known as the atomic mass. In this experiment, you will observe the reaction of iron nails with a solution of copper (II) chloride and determine the number of moles involved in the reaction. You will determine the number of moles of copper produced in the reaction of iron and copper (II) chloride, determine the number of moles of iron used up in the reaction of iron and copper (II) chloride, determine the ratio of moles of iron to moles of copper, and determine the number of atoms and formula units involved in

a. Change the 24th bead to a different color. What does the sentence say now (re-read the entire sentence)? Does the sentence still make sense?

Develop a hypothesis relating to the amount of dissolved oxygen measured in the water sample and the number of fish observed in the body of water.

groups. It was conducted to further the research in choice overload and paralysis of the mind.

Table 1 Concentration of protein, DNA, and ratio of the two in heart, kidney and liver of bos taurus. Average standard deviation of protein concentration is also shown.

What is Authorization and how is this concept aligned with Identification and Authentication? Authorization is a set of rights defined for a subject and an object; this concept is aligned with Identification and Authentication because these are the 3 steps to the access control process

1. During the install, the option to sync with NTP (Network Time Protocol) server was checked. From a security perspective, why is it important for a system to keep accurate time?

An aliquot (5 mL or 500 ml) of sample was filtered through a Whatman Anotop PTFE syringe filter (0.2 µm) and the concentrations of target PHCs were quantified using HPLC-MS/MS. Question: Why not preconcentration such as passing 200 ml through a cartridge to improve sensitivity? How does this method compare with published SPE techniques?

Dependent and independent variables: The dependent variable is the plant placed on the window sill. The independent variable is the inches that the plant grows per day.

Comparison of Monogastric digestive system, Hindgut Fermenter and Ruminant: Mouth: • Cat vs Rabbit: Cats have 6 incisors on the top and bottom jaw. The Rabbit has 2 incisors on the top and bottom jaw. Cats have 4 canines. Rabbits do not have any canines. This makes the cat more efficient at catching prey as canines allow the cat to hold onto its prey.