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quiz2 - BmZZISmflgZOH Nmm flag(Please PRINT clearly gm 1...

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Unformatted text preview: BmZZISmflgZOH Nmm: flag (Please PRINT clearly) gm 1. Which of the following is characteristic of Dark Field microscopy? /' Numerals? (Dl¢) A. It requires the use of polarized light for illumination. \ V ‘01:, q B. A blue glass filter under the stage is used to improve contrast. " Br‘fiht Fl. / Arbom‘c Am; C. It is called “dark” because the specimen is felt with a probe rather than illuminated. D. The specimen looks bright because it is viewed by reflected light. E. The background must be stained with ink to View uncharged spKecimens. mam“ 3‘me / gm} Ht 5“]! 2. You want to examine a protozoan performing endocytosis. Which of the following techniques would provide the best View? A. Nomarski (DIC) microscopy of an unstained specimen B. Bright Field microscopy of an unstained specimen -- can fin» é 61° go o r- C. Phase contrast microscopy of a Gram stained specimen D. Transmission Electron Microscopy \ P‘WK (”~14th r; ml: M E. Fluorescence Microscopy ‘ hot: liw— “,ny a. 31.,» UK I ‘ P053iut) 5M ’P‘C'Wn 2°65“ ( . Hat 2'0 wow «~— A/e-qu/o.‘ bttbwn 2” ‘5 AM ”(’6' 5°“ , H 3. What special hardware is required for Confocal Microscopy? M “(‘4‘ Mt WM . I A. An electrically conductive fine—tipped pfldzbenh RV“. B. A movable pinhole to admit only some of the light from the specimen C. Two prisms that polarize light perpendicularly - Alamank.‘ ( DlC) D. A special focus knob that allows the user to focus quickly on the specimen (5“! 1m!) E. A beam that can illuminate the specimen from many different angles Jrk ct; "M" \ a: is to arms n1, is t, 4. What is the purpose of the bacterial PMF? /' osmosf s a all ML A. It creates turgor pressure so the cell holds its shape. ‘A B. It protects the cell from plasmolysis. ‘- 0.5m protu- W65 {- a? “’W’ C. It’s a channel through which water can pass freely across the membrane. D. It’s the outer, protective layer of Gram negative cells. ~ LPS E. It can be used as an energy source to make ATP or do other work. A773 8‘70”“ trot—m HM MAM "Ifl S 5. Which of the following are found in the layer of a bacterial cell wall? «Mu/(we (' "#9 WV“ . .- . ‘ ‘ cm" A. amino ac1ds and 11p1ds (“705' 4° ; {herb-le— 50nd! t amhno ”is 3 7 R B. nucleic acids and carbohydrates L Q .1 _ . ' C. amino acids and carbohydrates 3 Y “W- 3 3L,“ 5: (L: M s 5 Ms D. nucleic acids and lipids _.., "gum/[q [We " E. carbohydrates and lipids \ “3 “/05 kph! ” ...
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