QUESTION 1Which of the following concepts in column A best fits the concept in column B.+ Trypan BlueHigh extracellular NaCl concentrationMicroscope condenser lens+ Microscope specimen stage+ Cells placed in waterA. Used to mount slide and move specimenaroundB. Cause cells to shrivel upC. Cause cells to swell and burstD. Focus the light onto the specimenE. Vital stain used to selectively colour deadtissues or cells blue

The tonicity of a solution refers to the relative concentration of solute concentration in two…

Answered: QUESTION 1 Which of the following…

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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The best definition for resolution is: O The ability of an organelle to pick up stain The thickness of a specimen to be examined by microscopy The observed size divided by the actual size O The magnification of a microscope The distance between two distinguishable objects
The 3 components that make a microscope useful in the realm of cell biology are contrast, resolution, and magnification True O False
Staining of cells is often performed to enhance images acquired by brightfield microscopy. Phasecontrast microscopy does not require cell staining. Why is this advantageous?
References V8 ish (U.S.) Q Search f4 Review A AB I Text Predictions: On View Help BIU Part 2: 15 Cell components seen Illumination (ii) Complete the table comparing the light and electron microscopes. The table should fit on a single A4 sheet. Specimen preparation Image formation Magnification Tell me what you want to do Resolution Editor Suggestions! Showing H O E C t Αν Α f6 (iii) Explain the difference between magnification and resolution. E✓ ✓ f7 ) Light Microscope f8 19 E Ev Co A Electron Microscope f10 (A. C.1.2) 0 f11 V 12 Comments ✓ Dictate + 10 Rain CC scroll
יון S All Media Christine 6/7/22, 6:03 PM Question 21 All of the following are types of light microscopes EXCEPT O fluorescent. O scanning tunneling. O phase-contrast. O bright-field. O confocal. > 7 ▬
All of the following are types of light microscopes except electron phase-contrast Obright-field O darkfield
List and describe 3 factors that affect the resolution of a compound microscope What reasons could there be for failing to obtain isolated/single colonies on a streak plate? Your answer should be specific to this technique (so should NOT refer to general aseptic technique or good laboratory practice). Give TWOreasons
Can someone answer and explain the following? What are the basic components of a Fluorescence Microscope and what are the functions of each? Are there any parts that you can remove without compromising accuracy and utility of the equipment? Can you suggest additional components to improve the equipment?
E. coli ~1X 2 micron
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
Given: The used ocular objective while taking this image, has magnifying power of 6x The used objective while taking this image, has a magnifying power of 100x The used stage micrometer has spaces graduation of 01 mm each Ten (10) graduations pn the ocular micrometer conincided with two (2) graduations on the stage micrometer Questions: What is the total magnification of the image under microscope? Show your solution. What is the distance of one ocular division? Show your solution. What is approximate cell length of Cell A, Cell B, and Cell C? What is approximate combine cell length of Cell A and Cell B? Show your solution. Remember: Always measure the cell length on the longest middle section of the cell!
A student has a compound microscope equipped with 10X ocular lenses and 4X, 10X, 40X and 100X objective lenses. The student has a slide with cells that are -100 microns (1 micron = 103 mm) in diameter, and wants to view a magnified image of a %3D cell so that the cell appears to be 10 mm in diameter. Which objective lens should the student use? O 10X O 40X O 100X O 4X Question 7 2 pts

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