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Microscopic examination
The analysis of minute organisms, cellular organization of any biological structure, and composition of body fluids with the help of a microscope is known as microscopic examination. The magnification of specimens or samples under study helps in attaining a clearer picture of it.
Gram Staining
Named after Hans Christian Gram, a Danish bacteriologist, Gram stain is one of the most powerful staining techniques within microbiology. This technique was introduced in 1882 to identify pneumonia-causing organisms. The Gram staining technique uses crystal violet or methylene blue as primary staining colors to distinguish gram-positive from gram-negative organisms. Under a microscope, the gram-positive organisms appear purple-brown, retaining the primary color. Gram-negative organisms appear pink or red as they do not acquire the color of the primary stain.
Question:-
7. How do electrons interact with biological specimens? Advantages and disadvantages.
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Solved in 2 steps
- Write shortly about the instrumentation of ATR spectroscopy. Please do not reject.Activity 2Objective: Describe what happens to substances that undergo a chemical change. Materials: used paper match used styrofoam plate or cups baking powder Vinegar liquid milk pure calamansi juice Procedure: A. Burning a piece of paper You need a piece of paper. Put it over the flame. Compare the color before and after burning. B. Styrofoam and calamansi juice Drop pure calamansi juice into a Styrofoam plate or cups. Then observe what happens to Styrofoam. C. Baking powder and vinegar Put one tablespoon of baking powder in a dry small bottle. Add water and observe what happens. D. Milk and vinegar Put 3 tablespoon of vinegar in a glass bottle then add liquid milk drop by drop. If the liquid milk is not available prepare from powdered milk to water. Then observe what happens. E. Complete the table below. In the observation column, describe the materials before the reaction and the results after the change. Then give the evidences of chemical change in the…Which of the following statements regarding electron microscopy is FALSE? Question options: live organisms cannot be viewed with an electron microscope all of these statements are TRUE scanning electron microscopes focus electrons across the surface of a sample electrons pass through a sample viewed using transmission electron microscopy electron microscopes use magnetic fields in place of glass lenses electron microsopes have a better resolving power than light microscopes
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- INTRUCTIONS: - Do not copy here in BARTLEBY or GOOGLE - PLEASE ANSWER PROPERLY Failed to follow instruction will report directly to BARTLEBY. QUESTION; 1. In SOAP Experiment, Do you think the type of fat/oil used will make a difference in the product? Why or why not?True or false ? images will appear brighter when light waves are in phase. the condenser portion of the microacope focuses light on the speciment.INTRUCTIONS: - Do not copy here in BARTLEBY or GOOGLE - PLEASE ANSWER PROPERLY Failed to follow instruction will report directly to BARTLEBY. QUESTION; 1. In SOAP Experiment, why did saponification reaction require the long period of stirring?
- topic: Materials Selection, Re-use, and Recycle. Answer the following question. 1. List on a hierarchy level from the most important to least the selection criteria on choosing the right materials. 2. How important is the re-use and recycling of materials in the industrial and manufacturing plants setting? 3. Give other criteria in choosing the right material.Tell me three things that you know about safety in a lab in general and what you would like to learn about safety in the microbiology lab.Why does PET use different isotopes than that of nuclear medicine exams with gamma cameras? What makes PET isotopes different?