HUMAN ANATOMY
6th Edition
ISBN: 9781260210262
Author: SALADIN
Publisher: RENT MCG
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Chapter 2.1, Problem 2BYGO
Summary Introduction
To analyze:
The advantage of an electron microscope over the light microscope.
Introduction:
A number of times, microbial organisms can be visualized directly using an appropriate type of microscopy. The specimens used can be wet-mount, heat-fixed, or chemically fixed. A common type of microscopy being ordinary bright-field microscopy helps to examine various microbial samples. To further amplify the quality of the specimens being examined one can use phase-contrast or dark-field microscopy found in many laboratories.
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1. Differentiate the compound light microscope from the dissecting microscope in terms of:
*image produced
*magnification
*type of specimen examined
2. Write down the principles of the following:
*electron microscopy
*scanning tunneling microscopy
*atomic force microscopy
Analysis: Write your answers on the space provided. 1. How does the letter “e” as seen through the microscope differ from the way an “e” normally appears? 2. When you move the slide to the left, in what direction does the letter “e” appear to move? When you move it to the right? Up? Down? 3. How does the ink appear under the microscope compared to normal view? 4. Why does a specimen placed under the microscope have to be thin?
Answer all the questions.
1. What is the importance of microscopy to the field of microbiology?
2. State at least 2 procedures which should be used to properly handle a microscope.
Chapter 2 Solutions
HUMAN ANATOMY
Ch. 2.1 - Prob. 1AWYKCh. 2.1 - Prob. 1BYGOCh. 2.1 - Prob. 2BYGOCh. 2.1 - Prob. 3BYGOCh. 2.1 - Answer the following questions to test your...Ch. 2.2 - Prob. 1AWYKCh. 2.2 - Prob. 2AWYKCh. 2.2 - Prob. 5BYGOCh. 2.2 - Compare the structure and function of...Ch. 2.2 - What membrane transport processes get all the...
Ch. 2.2 - Identify several reasons why the glycocalyx is...Ch. 2.2 - Prob. 9BYGOCh. 2.2 - Prob. 10BYGOCh. 2.3 - Not all genetic diseases are hereditary. Explain...Ch. 2.3 - Prob. 11BYGOCh. 2.3 - Prob. 12BYGOCh. 2.3 - Prob. 13BYGOCh. 2.3 - What three organelles are involved in protein...Ch. 2.3 - Prob. 15BYGOCh. 2.4 - State what occurs in each of the four phases of...Ch. 2.4 - Prob. 17BYGOCh. 2.4 - Prob. 18BYGOCh. 2.4 - Prob. 19BYGOCh. 2.4 - Discuss the advantages and disadvantages of adult...Ch. 2 - Prob. 2.1.1AYLOCh. 2 - How the light microscope transmission electron...Ch. 2 - Prob. 2.1.3AYLOCh. 2 - The distinction between the basal, apical, and...Ch. 2 - The size of a micrometer and some common and...Ch. 2 - Prob. 2.1.6AYLOCh. 2 - The meanings of plasma membrane, cytoplasm,...Ch. 2 - Prob. 2.1.8AYLOCh. 2 - Prob. 2.2.1AYLOCh. 2 - Prob. 2.2.2AYLOCh. 2 - Prob. 2.2.3AYLOCh. 2 - Prob. 2.2.4AYLOCh. 2 - The diverse physiological roles of membrane...Ch. 2 - Prob. 2.2.6AYLOCh. 2 - Prob. 2.2.7AYLOCh. 2 - Prob. 2.2.8AYLOCh. 2 - Prob. 2.2.9AYLOCh. 2 - Prob. 2.2.10AYLOCh. 2 - Prob. 2.2.11AYLOCh. 2 - The three components of the cytoskeleton, and how...Ch. 2 - Structure and function of a cell’s nucleus rough...Ch. 2 - Prob. 2.3.3AYLOCh. 2 - The four stages of the cell cycle and what events...Ch. 2 - The four stages of mitosis, what events occur in...Ch. 2 - Prob. 2.4.3AYLOCh. 2 - Prob. 2.4.4AYLOCh. 2 - The meaning of stem cells; their usefulness in...Ch. 2 - Prob. 1TYRCh. 2 - New nuclei form and a cell pinches in two during...Ch. 2 - Prob. 3TYRCh. 2 - Prob. 4TYRCh. 2 - Prob. 5TYRCh. 2 - Prob. 6TYRCh. 2 - Prob. 7TYRCh. 2 - Prob. 8TYRCh. 2 - Prob. 9TYRCh. 2 - Matter can leave a cell by any of the following...Ch. 2 - Prob. 11TYRCh. 2 - Prob. 12TYRCh. 2 - Prob. 13TYRCh. 2 - Prob. 14TYRCh. 2 - Prob. 15TYRCh. 2 - Prob. 16TYRCh. 2 - Prob. 17TYRCh. 2 - Prob. 18TYRCh. 2 - Prob. 19TYRCh. 2 - Prob. 20TYRCh. 2 - Prob. 1WWWTSCh. 2 - Prob. 2WWWTSCh. 2 - Prob. 3WWWTSCh. 2 - Prob. 4WWWTSCh. 2 - Briefly explain why each of the following...Ch. 2 - Prob. 6WWWTSCh. 2 - Prob. 7WWWTSCh. 2 - Prob. 8WWWTSCh. 2 - Prob. 9WWWTSCh. 2 - Briefly explain why each of the following...Ch. 2 - Prob. 1BYMVCh. 2 - Prob. 2BYMVCh. 2 - Prob. 3BYMVCh. 2 - Prob. 4BYMVCh. 2 - Prob. 5BYMVCh. 2 - Prob. 6BYMVCh. 2 - Prob. 7BYMVCh. 2 - Prob. 8BYMVCh. 2 - Prob. 9BYMVCh. 2 - State a meaning of each word element and give a...Ch. 2 - What would probably happen to the plasma membrane...Ch. 2 - Prob. 2TYCCh. 2 - Prob. 3TYCCh. 2 - Prob. 4TYCCh. 2 - Prob. 5TYC
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- A lab revolving around compound microscopes was conducted. Please answer the following questions (questions 1, 2, and 3). If a specimen (placed on a slide) has little or no color, what level of light intensity should you use; should the intenisty of the light be high or low (choose)? Which objective should be in position before you start to focus the microscope? Which focus knob should you use first with this objective?arrow_forwardAnswer the following questions: Why are most cells so small? Why cell size is limited? List two instances when the coarse adjustment knob is never used Why is immersion oil used with the 100X objective? List two common problems associated with using the microscope and how you would go about solving it. When should the lenses be cleaned? What is the correct way to clean them?arrow_forwardanswer 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:arrow_forward
- Please answer the following questions (Question 1 AND 2) about compound microscopes. After clicking the objective into position, which adjustment knob(s) can you use to safely refocus the image? You may need to adjust the light intensity to better see the specimen. Indicate two ways in which you can change the light intensity?arrow_forwardBased on what you have learned about the different microscopes, fill in the table below with which one would you use to look at each of the following samples? Explain your answers. Options: Field Scope, dissecting microsope, compound microscope, SEM, or TEM. Subject Microscope Choice Reasoning Live earthworm, 10 cm long Write your answer here Write your answer here Bacterium, 10 µm long Write your answer here Write your answer here Blood from patient suspected of having malaria, a disease caused by a parasite Write your answer here Write your answer here Mouthparts of beetle Write your answer here Write your answer here Mitochondria Write your answer here Write your answer here Blue whale, 30 m long but 500 m away Write your answer here Write your answer herearrow_forward1. What is an electron microscope? Mention to examples. 2. What are the main advantages and features of the electron microscope? 3. What are the main limitations or disadvantages of the electron microscope? 4. What type of specimen would you be curious to observe using an electron microscope?arrow_forward
- 4-What are the first and second steps to using the microscope? 5. Explain the "low to high" rule when using the microscope. please answer for botharrow_forwardList 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 TWOreasonsarrow_forward1. Is a microscope an absolute necessity for studying microorganisms? Why or why not? 2. What do you think are the limitations of a brightfield microscope? Why is a brightfield microscope the most common type of microscope in routine clinical laboratories? 3. A slide in which a stained specimen is placed on the microscope stage. After careful and correct manipulation of the adjustment knobs, the specimen is still not in focus. What do you think is the reason? What corrective actions can be done? (provide computation) 1. What is the formula to determine the actual size of an organism? 2. The actual size of an Escherichia coli is 1.5um. What would be its image size if the magnification used is 1000x? 3. What magnification is used if an Bacillus sp. have a microscopic size of 3.5um and an image size of 15mm? NOTE: please try to answer all of the question, i promised to give you a good ratinggarrow_forward
- Shown below are several micrographs (images from microscopes) that were taken using different microscopy techniques. Write down what method of microscopy was used and why you thought so. Choices for microscopy techniques are: Transmitted Light Microscopy (techniques of brightfield, phase-contrast, darkfield, DIC all fall under this), Fluorescence Microscopy, Scanning Electron Microscopy, and Transmission Electron Microscopy.arrow_forwardOur microscopes have three objectives. What are their powersarrow_forward1. What does moving the coarse focus and fine focus do? Why is it important to remember the difference between coarse and fine focus? 2. What is the resolution of a microscope? How is resolution affected byadjusting the light, coarse and fine focus? please answer on ur own words, do not copy from google or i will downvotearrow_forward
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