Discuss what is meant by the Oxygen effect, the oxygen enhancement ratio and some possible mechanisms. In your discussion, research and explain then Howard Flanders and Alper analysis.
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- C. Spectrophotometric Measurements of the Hill Reaction 1. Place 15 mL of the 0.05-mg chlorophyll/ mL suspension in a test tube. Wrap the tube with aluminum foil and chill in an ice bucket. This is the source of unheated chloroplasts. 2. Place the remaining 10 mL of the 0.05-mg chlorophyll/mL suspension in a test tube and heat until boiling using an alcohol lamp. Heating inactivates the chloroplasts. Stand the heated mixture for 5 min. to allow the debris to settle.blackboardcdn.com/5bfc08ba3fldc/14683296?X-Blackboard-Expiration=16245468000008X-Blackboard- 19 / 47 100% 1.4. Functions of the light mlcroscope parts Complete the following table by writing the function(s) of each of the parts indicated. Structure Function Diaphragm / iris Stage opehing Lamp Objective lenses Eye piece Coarse and find adjustment knobs Stage Stage rack prt sc delete home backspace lock enter pause t shiftUsing C1*V1 = C2*V2, please complete the calculations for the substrate row & show me how to do it as I am unsure. *The final sample is contained in using 2mL centrifuge tubes. answer all or else I will upvote
- Explain about the EPO experiments.This is a three-part question You want to measure the blood oxygen level in a drop of blood using a pulse oximetry device. If you have a light source at 700nm, and 1mm of path length, what must be the concentration of: - oxidized hemoglobin in blood so that the light intensity at the output decreases to one tenth of the input intensity? - reduced hemoglobin in blood so that the light intensity at the output decreases to one tenth of the input intensity? - at the concentration you found in the second part, what is (Ii/If) for oxidized hemoglobin?Choose the one answer that fits best. Which of the following statements regarding the proper procedure for using Micropipettes is NOT correct? O a. You cannot use a 2-20 µl micropipette to pipet 200 µl O b. To expel all the liquid from the tip, you have to press the eject button O c. To draw up solution, press and hold the plunger at the first stop before entering the solution O d. Micropipettes always require the use of a disposable plastic tip O e. While pipetting, micropipettes should always be held as straight as possible
- Question 16 Read the information regarding the cook method and food and answer the following questions. Link Cooking this vegetable reduces the sulfur compounds found in its raw form. Sulfur compounds have anti-cancer properties. garlic O tomato O spinach O cabbageFlame Test (Unknown) View the Unknowns to see the results of the flame test. Record Your Observations (clearly and neat hand writing please)Lab students placed ten spinach leaf disks in each of three test tubes containing a baking soda solution and a control tube without baking soda. The volume of liquid in each tube and the temperature of the solutions were held constant. All tubes were placed an equal distance from the light source indicated in the accompanying table. After 10 minutes, the amount of oxygen present in each sample was measured. Test Tube Grams of Baking Soda (CO2 source) Wattage of Light Bulb 1 0.5 25 2 0.5 50 3 0.5 75 4 0 75 Which tube is expected to produce the least amount of oxygen? a) Tube 1 b) Tube 2 c) Tube 3 d) Tube 4
- Lab students placed ten spinach leaf disks in each of three test tubes containing a baking soda solution and a control tube without baking soda. The volume of liquid in each tube and the temperature of the solutions were held constant. All tubes were placed an equal distance from a light source as indicated in the accompanying table. After 10 minutes, the amount of oxygen present in each sample was measured. Test Tube Grams of Baking Soda (CO2 source) Wattage of Light Bulb 1 0.5 25 2 0.5 50 3 0.5 75 4 0 75 Which tube is expected to contain the greatest quantity of oxygen? Tube 1 Tube 2 Tube 3 Tube 4Comment on the ethics surrounding the development of the Pfizer-BioNTech.Figure 1 show the shape of the peaks in gas chromatography that causes loss of column efficiency. Determine the type of shape and identify two possible solutions to fix it. INJ Time (min)