When you are looking through the compound microscope at a slide containing Protozoans under an objective lens 40X, how much is the total magnification? 4X 40X 100X 400X       Question 3   It would be necessary to use the oil immersion lens to visualize a Helminth egg that measure 100 µm long? Group of answer choices True False       Question 4    To visualize a bacterium, measuring 1 µm, under the compound microscope is necessary to use the 100X objective without oil immersion. True False        Question 5   There is a piece on the microscope able to result in a better contrast of a specimen. Which piece is that? Coarse focus Mechanical stage Fine focus Iris diaphragam

Tell me three things that you know about microscopes? Why do we use them? How do you feel about using them in the lab?

start with the results of your Gram Stain. In the spaces labeled appearance& observations, indicate what you see. For instance, "red, long, rod-shaped cells." Under Results indicate the correct term that goes along your observation. For the gram stain, it is sufficient to write the word "positive" or negative in this space.

Image A: Image B: 25 um O A. image A- scanning electron microscope, Image B- phase contrast microscope O B. Image A brightfield microscope; Image B- darkfield microscope O C.image A- brightfield scanning microscope Image B- phase contrast scanning microscope D. image A- transmission electron microscope, Image B- scanning electron microscope O E. image A- scanning electron microscrope, Image B- transmission electron microscope

Is organism 1 a plant animal or neither explain  what procedure would you used to perform test A then explain how the results of test A allow you to determine wether the test was positive or negative for organism 1?

Out of all these tests, which 2 would help further understand this unknown lab. (Gram Stain and Growth Result is already done) Possible Tests (pick 2 that would help know the unknown bacteria) Gram stain morphology & arrangement color and growth characteristics on agar 37C, 30C and 25C (room temp) CAMP test starch hydrolysis test bacitracin susceptibility test glucose, lactose, sucrose, maltose fermentation tests methyl red/MR test Mannitol MacConkey Phenol Red Vogues-Proskauer/VP test citrate utilization test urea hydrolysis test phenylalanine deaminase test SIM test (Sulfide/Indole/Motility) Nitrate reduction test Oxidase test Catalase test

question 6

Please answer question 2