TRUE OR FALSE 1. The antheridium of a moss could be seen as a whole mount at 100x magnification. 2. The fine adjustment knob sharpens the image in all objectives. 3. While disinfecting the isolation room with UV light, stay inside so that your hands and clothes will also be sterilized.
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TRUE OR FALSE
1. The antheridium of a moss could be seen as a whole mount at 100x magnification.
2. The fine adjustment knob sharpens the image in all objectives.
3. While disinfecting the isolation room with UV light, stay inside so that your hands and clothes will also be sterilized.
Step by step
Solved in 3 steps
- ILLUSTRATIONS: 1. Sterilizers seen in the laboratory and their parts.Notes the agars plates doesn’t have any bacteria. 1.Some companies advertise preservative-free products. What are the benefits for no preservatives for the consumer? What are the risks? 2. You use the Gram staining procedure to stain a bacterium that lacks a cell wall. Would you consider the bacterium appear Gram positive or Gram negative ? And why ?1. Write the procedure for celloidin embedding. 2. Write the procedure for vacuum embedding. 3. Write the procedure for epoxy embedding. 4. Write the procedure for resin embedding. OBRIGHTA
- Why is it important to limit the quantity of cells used to prepare a smear? Mark all that apply: 1. So that cells are not clumped and don't entrap stain creating erroneous results 2. So that the cells are spread out enough that cell morphology can be discerned 3. So that there are small groups of cells clumped together to make them visible 4. So that no contaminants are introduced onto the slide by being entrapped in clumps 5. So that the cells are spread out enough that the arrangement can be observedAt the Brewery part 2: Continue identifying microbes you islated from the contaminated beer: Microbe 2: top photo growth on Sabauraud Dextrose agar; bottom microscopic viewChoose the 4 most correct steps from the list below for a simple positive stain and organize them into the most correct order. Briefly explain the purpose of each step you chose. • Heat fix • Dip slide in acid alcohol • Wash slide with ethanol • Apply Congo Red to the slide • Apply Crystal Violet to the slide • Make a smear • Wash slide with water
- Benefits of UV light sanitizer spray gun.Complete the table below. For the function, identify the reagent if it is a stain, clearing agent, mountant, fixative, dehydrant, embedding medium, or adhesive. Then give 2 common health hazards of each. Reagent Function Health hazards 1. FAA 2. Ethyl alcohol 3. Xylene 4. Acetone 5. 10% formalin 6. paraffin 7. Harris Hematoxylin 8. Mayer's albumin 9. Canada balsam 10. Distilled water3. Draw the specimen observed under endospore staining 4. Draw the specimen observed under positive simple staining
- 1. Write briefly about Metabolism of drugs ( just 5 lines ) 2. Write briefly about Polyethylene glycol ( just 3 lines ) 3. The levigating agent , explain about its role in Suppositories manufacturing 4. Write in details about types of gel 5. Write in details about fusion method in ointment preparationSelect all that apply to a negative stain: 1. involves a washing step 2. cells may be distorted or shrunken 3. uses an acidic or negatively charged dye which stains the background 4. uses multiple dyes in the procedure 5. uses only 1 dye in the procedure 6. involves fixing 7. does not involve fixing 8. cells will not be distorted or shrunken 9. does not involve a washing step 10. can show cell morphology, size, and arrangement 11. uses a basic or positively charged dye which stains the bacterial cellsWhat is the purpose of fixing a smear? Mark all that apply: 1. To attach the bacteria to the slide 2. To cause the cells to shrink and become distorted 3. To kill the bacteria so they aren't harmed by the staining method 4. To break down the cell wall in order to make the cells accept stain 5. To kill the bacteria to make the slide safer to handle