困Topic: laboratory InstrumentWhich of the following islare TRUEWhich of the following is/are TRUEregarding microscopes? *regarding the use of laboratory glass waresand instruments? *TEM gives excellent view of internalstructures of a specimen in three-dimensional imageBoth the inoculating loop and inoculatingneedle can be used in nutrient broth.Phase contrast microscope permitsA serologic pipette has a bulbous partwhich is used to deliver different volumesdetailed examination of internal structuresof live specimensof liquid.A glass slide and coverslip are to observeInterference microscope creates twostained microorganisms.superimposed images of a specimen.8:03 pmP Type here to searchA O G 4)) ENG30/09/2021近

Microscope are the instrument used to view enlarged image of a minute structures at a scale…

Answered: Topic: laboratory Instrument Which of…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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ES Practice, Question 07 Select ALL the correctly described types of microscopy: Bright field commonest microscopy using visible light O Dark field/ uses UV light and spotlights specimens O Nomarski/ uses dual beam visible light with high resolution but shallow depth of field O Phase contrast/ dual beam light, contrast comes from phase changes within the specimen 1 2 13 14 15 O Fluorescence/ uses gamma rays to resolve specimen detail 16 17 18 19 20 Study MAY 24 MacBook Pro 80 000 O O O O O
Based on the video (link provided below: https://youtu.be/SUo2fHZaZCU) give 10 steps on handling the microscope
Question:- Starting with data collection, describe the steps necessary to determine a 3-Dimensional structure using electron microscopy methods.
Which of the following is an advantage of confocal microscopy over conventional fluorescence microscopy? The interaction of the laser beam with the cell surface allows the imaging of individual macromolecules O Only out-of-focus light enters the microscope lens, making the object appear illuminated against a dark background The use of electrons instead of light to image the specimen results in greatly increased resolving power O Optical sections in a single plane of focus can be visualized at different depths in the specimen The natural contrast of an unstained specimen is enhanced
Question:- calculate the distance between two ocular micrometer division markers in micrometers (μm) when viewed at 100x total magnification, then at 400x.
Drag the images or descriptions to their corresponding class to test your understanding of various types of microscopes and the images that they produce. Bright-Field Microscope Dark-Field Microscope Scanning Electron Microscope Provides a three- dimensional image when a computer combines multiple optical sections of a specimen stained with fluorescent dye Common light microscope used in the general microbiology lab course Common light microscope used in the general microbiology lab course Fluorescent Microscope Phase Contrast Microscope Confocal Microscope Provides a three- dimensional image when a computer combines multiple optical sections of a specimen stained with fluorescent dye A light microscope that provides brightly colored, highly contrasting, three- dimensional images of live specimens A light microscope that provides brightly colored, highly contrasting, three- dimensional images of live specimens Differential Interference Microscope Transmission Electron Microscope < Prev…
Question:- What is the best superresolution microscopy method to resolve in z direction.
L of Microscopes: 1. If you have a standard ocular lens of 10x what is the true magnification that you are looking at if you are using the 100x objective lens. What is the rule for focusing if you switch to the 40x lens? 2. Calculate the sizes of the following cells. Not all cells are viewed at 40x so use the following table to calculate the size of your cells. 4x 1 reticular unit = .025 mm 10x 1 reticular unit = .01 mm 40x 1 reticular unit-.0025 mm 4 points A) Cell 1 on 10x=8 reticular units B) Cell 2 on 40 x = 28 reticular units mm mm Which one is actually larger? Which one is probably the plant cell? Why?
Direction: Read and analyze the following laboratory experiment and answer the following question. PART 3: PLASMOLYSIS Materials: safety goggles, red onion, dropper, slides & cover slips, tweezers/ forceps, compound microscope, iodine, small knife, water, salt (5% and 10% solution) Methodology: 1. With goggles on, carefully cut the onion into wedge shaped pieces using a knife. 2. Use an eye dropper to place a drop of water in the center of a microscope slide. Use the tweezers to peel a thin layer of skin tissue from the thick part of the onion wedge and place it in the center of the microscope slide. 3. 4. 5. Add a drop of water and a drop of iodine over the onion tissue on the slide. Carefully lower a cover glass slip at an angle on the stained tissue to allow air bubbles to escape. 6. Examine the prepared slide under the compound microscope at 100X magnification. 7. Record what the cells look like. 8. Prepare a 5% salt solution by adding 5 grams of salt (measure with balance) per 100…
Non-conducting materials can be studied by scanning tunneling microscope(STM). 1.True 2. False
Of the four major types of microscopes, give an example of a scenario in which each would be the ideal choice for visualizing a sample. Stereo (Dissecting) Compound Confocal Electron
answer the following: instruction.match the name of the major part (listed below) with its location on the microscope, and give a very brief description of what each is used for:

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