Immersion oil Samenvattingen, Aantekeningen en Examens

Microbiology Lab Midterm Questions and Answers Already Passed Compound microscope 1. Ocular-eyepiece lens (usually 10x) 2. Objective-nosepiece lenses (commonly 4x, 10x, 45x, and 100x) At what magnification do you use the oil immersion technique? 100x. Total Magnification = Magnification (Objective) x Magnification (Ocular) Important Parts of the Microscope Framework, Stage, and Lens System Framework Arm and base are the structural parts of the microscope which support the basic frame. Stage...

Describe the position of your hands when carrying the microscope to and from your laboratory bench. correct answers Both hands should be used-- one holding the bottom of the microscope and one holding the arm Differentiate between the limit of resolution of the typical light microscope and that of the unaided human eye. correct answers light microscope = 0.2 um unaided human eye = 0.2 mm What two adjustments can be made to the condenser? correct answers height and diaphragm What effect...

Microbiology All Lab Exam questions with Complete Solutions rated A+ True or false: The high-dry lens will be optimal for observing multicellular fungi or algae. - False True or false: The oil immersion objective is necessary to determine the morphology of prokaryotes. - True What was the largest organism you observed? The smallest? - Fungi/mold; bacteria What three shapes of bacteria did you observe? - cocci, spiral, bacilli How does increased magnification increase the field of vision?...

What is the total magnification of an oil immersion lens? - 1000x magnification Resolution - how clear an image appears Magnification - making small things big Working Distance - the distance between the tip of the objective lens and the stage What is the purpose of the oil in the oil immersion lens? - the oil is used to minimize light refraction to create a sharper, larger image Inoculum - the organism that is being transferred from one medium to another Inoculation - the process of tr...

True or false: The high-dry lens will be optimal for observing multicellular fungi or algae. - False True or false: The oil immersion objective is necessary to determine the morphology of prokaryotes. - True What was the largest organism you observed? The smallest? - Fungi/mold; bacteria What three shapes of bacteria did you observe? - cocci, spiral, bacilli How does increased magnification increase the field of vision? - When magnification increases, it decreases the field of vision Why...

Microbiology LAB Exam 1 with Complete Solutions Microscope- The Condenser focuses the light ging into the objective lens Microscope- The Iris Diaphragm adjusts the amount of light going into the objective lens Microscope- Nosepiece holds the objective lenses and rotates to change from one objective to another Microscope- Coarse Objective Knob moves the stage larger distances to help get the object in focus Microscope- Fine Adjustment Knob moves the stage smaler increments to help get the obj...

brom cresol purple indicator in MIO media that tests for decarboxylation of ornithine positive result is a lavender-purple color A hydrogen peroxide H2O2 used to test for organism's possession of catalase copious amounts of bubbles are evidence for release of O2 as peroxide is broken down 2H2O2 + O2 iodine indicates the presence or absence of starch agar solidifying agent purified from marine algae colonial morphology size, color, shape, elevation, consistency, ...

Microbiology Lab Test 1 Questions and Answers Rated A What are the 4 steps to putting a microscope away? 1.) Clean 2.) Lower stage completely 3.) Scanning power objective in position 4.) Tighten silver knob Foods that are made possible by lactic acid fermentation include: Answer: yogurt, sauerkraut, sour cream, buttermilk, cheeses, kimchi. Foods and beverages made possible by ethanol fermentation include: Answer: beer, ale, mead, wines, distilled alcoholic beverages, yeast bread. Foods that a...

brightfield microscope correct answers allows light rays to pass directly to the eye without being deflected "J" setting on microscope arm/base correct answers basic frame structure of all microscopes stage correct answers horizontal platform that supports the microscope slide stage adjustment correct answers clamping device that holds/moves slide around stage stage adjustment knobs correct answers control stage light intensity control correct answers vary intensity of light (i...

Oilers Plant Tenders (HHC) Civil Service Exam 365 Questions with Verified Answers The texture of an aluminum-soap lubricating grease is _________ - CORRECT ANSWER Stringy The property of a lubricant the allows it to adhere to metallic surfaces is known as ________ - CORRECT ANSWER Oiliness The physical appearance of a grease with a consistency number of four is MOST NEARLY _________ - CORRECT ANSWER Hard The one of the following measures that is commonly used to represent a rate of...