Basing our hypothesis off of this past experiment, I hypothesized that in the presence of ammonium nitrate we should see an increased germination rate of our spores from the Ceratopteris richardii. We grew 2 different cultures of the fern spores, one on a control petri dish and one in 1% NH4NO3, with 6 replicates. They were grown for 4 weeks and were put under sufficient lighting. All the data was compiled from all the replicates and after all the calculations we found that there was a significant difference in the spore germination rate. Less germinated in the presence of 1% ammonium nitrate compared to the spores not in the presence of ammonium nitrate.
All sales are made on account at $20 per unit. Sixty percent of the sales are collected in the month of sale; the remaining 40% are collected in the following month. Forecasted sales for the first five months of 20X2 are: January, 1,500 units,- February, 1,600 units; March, 1,800 units; April, 2,000 units; May, 2,100 units. 2. Management wants to maintain the finished goods inventory at 30% of the following month's sales.
Electrons can now continue to move through PSII and the cytochrome b6 f complex, and oxygen is produced in the water-splitting reaction. 34. Bioenergetics of Photophosphorylation The steady-state concentrations of ATP, ADP, and Pi in isolated spinach chloroplasts under full illumination at pH 7.0 are 120.0, 6.0, and 700.0 mM, respectively. (a) What is the free-energy requirement for the synthesis of 1 mol of ATP under these conditions? (b) The energy for ATP synthesis is furnished by light-induced electron transfer in the chloroplasts.
According to Labpaq “Nutrient medium is the standard growth medium used for culturing most microbes”. MRS culture medium contains polysorbate, acetate, magnesium, and manganese, which act as “special growth factors” for lactobacilli. (labpaq, unknown year) H. Discuss whether you saw growth in the tubes after 24 hours. For the S. epidermidis I did not see any growth (uninoculated) after 24hr. For the L. acidophilus I saw sediment after 24hr.
Kyla Emerine Date of Experiment: April 15, 2015 Report Submitted: August 17, 2015 Title: Colligative Properties and Osmotic Pressure Purpose: To observing changes of colligative properties in freezing and boring points, by adding salt to a solution. Procedure: In this experiment I performed various procedures such as adding different amounts of salt to tap water that was freezing or boiling and observed how it changed the temperatures. Data Tables: Data Table 1. Dialysis Tubing Results Time: |Mass of Dialysis Tubing and Contents | 0 minutes |6.5g| 30 minutes |6.8| 60 minutes |7.2| Questions A. In your experiment, is the light corn syrup in the dialysis tubing hypertonic or hypotonic to the water?
Reactions Lab David Vaghari INSTRUCTOR: Dr. Chernovitz Monday, July 23, 2012 Oxygen Production Introduction In this lab, potassium chlorate will be decomposed producing oxygen gas and potassium chloride. The hypothesis is that the reaction will yield 3.916 grams of oxygen gas. Materials Test tube 10 grams potassium chlorate Bunsen burner Procedure Step 1. Obtain a test tube, place a 10 gm of potassium chlorate. Step 2.
Discussions need to include what the results mean. You can easily do this in 3-4 sentences. Solubility product constant, or Ksp, is a constant used for predicting solubility of different compounds in solution. In the experiment Ksp is determined for the purpose of knowing how much of a solid dissolves in solution at equilibrium. The Ksp for the experiment was found to be an average of 4.29x10-5, which means that 4.29x10-5 parts of a mole of solid are dissolved in the solution.
0.9 0.8 0.7 Absorbance 0.6 0.5 0.4 0.3 0.2 0.1 0 400 450 500 550 600 650 700 750 λ max 500 nm 550 nm • • Make sure you understand the directions for using the spectrophotometer and have them written in your manual. Complete the questions on the prelab page. Introduction: There are many different chemical methods that can be used to determine the concentration of a solution. You have already used one method, titration, to find the concentration of Ca+2 ions in a sample of water, and another, density, in finding the concentration of ethanol. In this lab you will use a method called visible spectroscopy to determine the concentration of a solution of CoCl2.
The relationship isnt linear because the amount of product didnt increase by the same amount between the amount of concentrations of substrate. As the substrate concentration increases the initial reaction rate continues to increase until a certain point where it remains the same no matter how many more substrates are added. The highest rate of reaction was 4g of substrate resulting with 8g of substrate producing the same result. What is the maximum initial reaction rate for this enzyme at pH 7? The maximum initial reaction rate for this enzyme at pH7 is 350 molecules of products formed per minute at 4g and 8g of substrate
Title: Bromination of (E) – Stilbene (Microscale Procedure) Author’s Name: Reinaldo George Professor: Elvis Barrett Date of Experiment: Thursday July 16th 2015 Institution: Nova Southeastern University Abstract The purpose of this experiment was to synthesize the second intermediate in the b series of Sequential Reactions by carrying out the bromination of (E)-stilbene to obtain meso-stilbene dibromide. This product is the precursor to diphenylacetylene, the next synthetic intermediate in the b series. A further purpose of this experiment is to demonstrate the stereospecific addition of bromine to alkenes. The percentage recovery was also calculated and recorded. On completion of this experiment; my lab partners and I were able to successfully synthesize the second intermediate in the b series of the