tube 1: 5ml milk, 10 drops phenol red, 5 ml distilled water tube 2: 5ml milk, 10 drops phenol red, 5 ml distilled water, bile salts * why are 5ml of water added to tubes 1 & 2?
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Question:-
tube 1: 5ml milk, 10 drops phenol red, 5 ml distilled water
tube 2: 5ml milk, 10 drops phenol red, 5 ml distilled water, bile salts
* why are 5ml of water added to tubes 1 & 2?
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- Experiment 2: Protein Digestion by Pepsin Label 4 test tubes P1, P2, P3, and P4 (“P” is for Pepsin, a proteolytic enzyme.) To each of the test tubes, add the following, and measure the pH before incubating: Test tube P1: Add 1 mL (1000 ml) albumin + 2 mL (2000 ml) distilled water Record the pH of this tube, here: ______ Test tube P2: Add 1 mL (1000 ml) albumin + 1 mL (1000 ml) HCl + 1 mL (1000 ml) distilled water Record the pH of this tube, here: ______ Test tube P3: Add 1 mL (1000 ml) albumin + 1 mL (1000 ml) pepsin + 1 mL (1000 ml) distilled water Record the pH of this tube, here: ______ Test tube P4: Add 1 mL (1000 ml) albumin + 1 mL HCl (1000 ml) + 1 mL pepsin (1000 ml) Record the pH of this tube, here: ______ 1. Are the results of this experiment consistent with what you know about pepsin? ________________________ 2. List some possible experimental errors that may have influenced your results.Answer choices : 0.3% gel OR 1.0% gel Explanation Choices : Agarose makes smaller pore sizes which leads to sharper distinction of larger bands OR Agarose makes larger pore sizes that enable better separation of larger bands.Procedure:1. Prepare 5 test tubes. Place 1 ml of 1% starch and add 10 drops of saliva toeach tube. Mix thoroughly.2. Place the first tube in ice water, the 2ndtube leave at room temperature, the 3rdtube in 40°C , the 4thtube at 60°Cwater bath and the 5thtube boil for 2minutes..3. Leave the 4 tubes in their respective temperatures for 30 minutes. The 4thtubeallows to stand for 30 minutes after heating for 2 minutes.4. Test the contents of each tube with iodine and benedict’s tests.
- How many milligrams of sodium chloride and lincomycin are required to prepare 100 mL of a 1% lincomycin isotonic with the blood? Please do it soonWhat is the chemistry principle behind when (treatment: evaporated milk) is subjected at room temperature and chilled? Why does beating time, stability (%drain) and volume foam (specific gravity) is important? see the data below Treatment (Evaporated Milk) Beating Time (min) Stability (%drain) Volume of Foam (Specific Gravity) (Room Temperature) 8 No drain 0.33 Evaporated milk (chilled) 11 No drain 0.86 Evaporated milk with lemon and sugar 12 No drain 0.87 Evaporated milk with gelatine and water 10 4.57% 0.50how to make 100ml of TBST buffer from 1X TBS (tris buffered saline solution) and 0.1% tween-20. I am just confused how to do the calculations when it is 1X TBS and not 10X TBS. Please show calculations
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- Using 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 upvoteProcedure: 1. Prepare 5 test tubes. Place 1 ml of 1% starch and add 10 drops of saliva to each tube. Mix thoroughly. 2. Place the first tube in ice water, the 2nd tube leave at room temperature, the 3rd tube in 40°C , the 4th tube at 60°Cwater bath and the 5th tube boil for 2 minutes.. 3. Leave the 4 tubes in their respective temperatures for 30 minutes. The 4th tube allows to stand for 30 minutes after heating for 2 minutes. 4. Test the contents of each tube with iodine and benedict’s tests.We measured the volume of water using a beaker, graduated cylinder, and P1000 micropipete. The most accurate was micropipete then a graduated cylinder and lastly a beaker. Marking on the glassware is TD- to be deliver TC - to contain Question: In most of the procedures, you weighed and measured the volume of water. Write aparagraph in which you answer these questions. What effect, if any, doestemperature have upon these measurements? Are there any markings on yourglassware related to this potential problem?