5. You are testing for unknown compounds. Evaluate the results of these tests to determine the likely contents of each unknown solution. Compound Unknown #1 Unknown #2 Unknown #3 Unknown #4 lodine Yellow Dark blue Dark blue Yellow Benedict's test Green Blue Red Orange Sudan stain No interaction Top 1/3 of the solution turns red No interaction Top % of the solution turns red Conclusion: what molecules are present in this sample?

5. You are testing for unknown compounds. Evaluate the results of these tests to determine the likely contents of each unknown solution. Compound Unknown #1 Unknown #2 Unknown #3 Unknown #4 lodine Yellow Dark blue Dark blue Yellow Benedict's test Green Blue Red Orange Sudan stain No interaction Top 1/3 of the solution turns red No interaction Top % of the solution turns red Conclusion: what molecules are present in this sample?

Principles Of Pharmacology Med Assist

6th Edition

ISBN:9781337512442

Author:RICE

Publisher:RICE

Chapter8: Forms Of Drugs And How They Act

Section: Chapter Questions

Problem 30RQ

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The reults for the macroscopic part: 0.30M glycerin – solution was translucent (could see text behind the test tube) 0.15M NaCl – solution was opaque (could not see text behind the test tube) 0.30M NaCl – solution was opaque (could not see text behind the test tube) 0.15M glucose – solution was translucent (could see text behind the test tube) 0.30M glucose – solution was opaque (could not see text behind the test tube) 0.30M Urea – solution was translucent (could see text behind the test tube) Results for microscopic part: 0.30M glycerin – no cells present 0.15M NaCl – normal sized cells 0.30M NaCl – crenated (shrunken and star-shaped) cells 0.15M glucose – no cells present 0.30M glucose – normal sized cells 0.30M Urea – no cells present Determine the osmolarity (hypoosmotic, isosmotic, or hyperosmotic) and tonicity (hypotonic, isotonic, hypertonic) of the following solutions.In which solutions did the osmolarity NOT match the tonicity? For those solutions, why did the osmolarity…
2. Compute for the calibration factor. Show your solution. CF = stage micrometer divisions subtended by om x value of one stage µm division ocular micrometer divisions subtended by stage micrometer (1 su x 10μm) 10 ou CF = CF = 1μm Ocular scale Stage micrometer scale or CF = Computation: (stage units x 10μm) ocular units 60 70 80 90 100 Name of Organism: Organism A Objective Used: HPO Total Magnification: 450x Ocular Micrometer units (violet rods): 10 Length of Organism:
Put the following steps for running a gel in order. first Remove comb and put gel int v [ Choose ] Load samples into gel Let gel solidify for 15-20 minutes Connect electrodes and turn on power to run gel second Pour heated, liquid agarose into gel cartridge Remove comb and put gel into bottom of electrophoresis box Pour buffer into electrophoresis box to cover gel third fourth Pour heated, liquid agarose in v fifth Load samples into gel sixth Connect electrodes and turn v
nsert Format Arrange View Share Window Help Biology Lab Exam 1 Sp 21 目 125% v Collaborate Insert Table Chart Тext Shape Media Comment View Zoom Add Page 3. (1 point) Show the answer to the following question in correct significant figures. 10.219 + 3.12 = 4. (7 pts) True or False. Circle the correct answer. True or False. A blank used to zero of spectrophotometer always contains just distilled water. True or False. The mode is the most commonly occurring number in a data set. True or False. One milliliter (mL) equals 1,000,000 microliters (µL). True or False. Peroxidase activity increases when the enzyme is boiled True or False. Enzymes are carbohydrates. True or False. Denaturing involves an enzyme breaking down into individual amino acids. True or False. Hydroxlyamine is a competitive inhibitor of peroxidase. 5. (1 point) How many µL (microliters) are in 2.32 L? Show your work for full credit. 6. (1 pts) Convert 1,745 mm tọ Km. Show your work for full credit. MAR étv 9. MacBook Air
3. Complete the information needed. Use the calibration factor from #2. CF = stage micrometer divisions subtended by om x value of one stage um division ocular micrometer divisions subtended by stage micrometer or CF = (1 su x 10μm) 10 ou CF = CF = 1μm Ocular scale Stage micrometer scale (stage units x 10μm) ocular units 20 30 40 50 60 70 80 90 100 I Name of Organism: Organism B Objective Used: 010 Total Magnification: 1000x Ocular Micrometer units (violet rods): 15 Length of Organism: Computation:
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
The technique that separates denatured proteins based on size is SDS-PAGE. FRAP. O thin-layer chromatography. O Western blotting. O freeze-fracture microscopy.
d/e/1FAIpQLSfTle9UfP15_VUqFI-ACEQd1XBykXv5Lr4dEMQbLJ1d6fCupw/viewform Students subjected three samples of five different molecules to gel electrophoresis as shown in Figure 1 A B C DE +2 3 Wells 4 8. Which of the following statements best explains the pattern seen on the * gel with regard to the size and charge of molecules A and B? 1 point molecules A and B are positively charged, and molecule A is smaller than molecule B. molecules A and B are positively charged, and molecule A is larger than molecule B. molecules A and B are negatively charged, and molecule A is smaller than molecule B. molecules A and B are negatively charged, and molecule A is larger than molecule B. Sign out
An unknown sample was tested if there is a presence of lipid, after the test it shows that it is positive for translucent test, soluble with chloroform, didn’t produce a pungent odor in acrolein test, didn’t produce red color for Baudouin Test, and violet color disappears in Huble’s Test. What can you conclude from these result/s?
Chemical tests See bottom of page 8 for instructions on how to complete this table. C. Biuret test Solution turins olive greeni Yeu ight Pur ple A. Iodine test B. Benedict's test Description of Solution turne Slohtion turns positive result Tube No. and (copy from Contents dark Purple or brovniornd asbiutrldeins Pp. 7-8) decp blue-blakk or tomoto of Short +/- Appearance blue (from p. 9) らish | +/- | Appearance blae Appearance +/- 1 - Orense 2 - Glucose Starch orunde Orange 3 - ders Brtelt blue blue blve bue 4 - alanine oransC- blue - 5. blue iout bue t orange Why was it important to have tube number 1 in each test? (Don't just say "because it's the control", and don't copy from the lab instructions-write out your own understanding of why and how that tube was used.)
Assume your field of view under a 3X objective is 6mm across. What is the field of view in mm under a 20X objective? Show clear work with units for credit. Field of view 20X objective? ___mm What is the field of view of this 20X objective in micrometers? If you observe a specimen under the 20X objective and the specimen spans one-quarter of the field of view distance, how long is the specimen in micrometers?
An unknown sample was tested if there is a presence of lipid, after the test it shows that it is positive for translucent test, soluble with chloroform, didn’t produce a pungent odor in acrolein test, didn’t produce red color for Baudouin Test, and violet color disappears in Huble’s Test. What is the unknown sample? Explain your answer.