Biology: Concepts and Investigations
5th Edition
ISBN: 9781260542202
Author: Marielle Hoefnagels
Publisher: Mcgraw-hill Higher Education (us)
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Textbook Question
Chapter 18, Problem 8WIO
Suppose someone hands you a microscope and a single-celled organism. Create a flow chart that you could use to identify the specimen.
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Based 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
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Bacterium, 10 µm long
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Blood from patient suspected of having malaria, a disease caused by a parasite
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Mouthparts of beetle
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Mitochondria
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Blue whale, 30 m long but 500 m away
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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?
Read the following scenario and answer the questions below:
Mary and Doug are lab partners in their Microbiology class. Mary missed class last week, so Doug is explaining to Mary what they learned last week during lab. This is what he said to Mary:
“A compound light microscope has a series of lenses and uses light as the source of illumination to view a specimen. The light source for the microscope is called the diaphragm and the illuminator controls the amount of light that enters into the condenser. The condenser focuses light through the specimen. In a compound microscope, the objective lens and ocular lens magnify the object. Light passes from the ocular lens to the objective lens during magnification. The body tube holds the slide in position and the stage transmits the image from the objective lens to the ocular lens. The coarse and fine focusing knobs are used to focus the image of the specimen.
We also learned how to calculate the total magnification of an object. Total…
Chapter 18 Solutions
Biology: Concepts and Investigations
Ch. 18.1 - What features define the protists?Ch. 18.1 - Prob. 2MCCh. 18.1 - Why are evolutionary biologists interested in...Ch. 18.2 - Prob. 1MCCh. 18.2 - Prob. 2MCCh. 18.2 - List and describe the characteristics of the major...Ch. 18.3 - What mode of nutrition do the slime molds and...Ch. 18.3 - Prob. 2MCCh. 18.3 - Prob. 3MCCh. 18.4 - Prob. 1MC
Ch. 18.4 - Prob. 2MCCh. 18.4 - List three diseases caused by flagellated...Ch. 18.4 - Compare and contrast amoebae, foraminiferans, and...Ch. 18.4 - How do ciliates move and eat?Ch. 18.4 - Prob. 6MCCh. 18.5 - Prob. 1MCCh. 18.5 - Prob. 2MCCh. 18.6 - Use the food chain in figure 18.21a to explain why...Ch. 18.6 - Prob. 2MCCh. 18 - Which of the following is NOT a characteristic of...Ch. 18 - Suppose you are studying a protist under a...Ch. 18 - Some protist lineages arose from secondary...Ch. 18 - Prob. 4MCQCh. 18 - Why are DNA sequences useful in the classification...Ch. 18 - Explain why evolutionary biologists are interested...Ch. 18 - The amoeba Pelomyxa palustris is a single-celled...Ch. 18 - How is it adaptive for a red alga to have pigments...Ch. 18 - How are kelp similar to trees? How are they...Ch. 18 - Prob. 5WIOCh. 18 - Prob. 6WIOCh. 18 - Prob. 7WIOCh. 18 - Suppose someone hands you a microscope and a...Ch. 18 - Review the Survey the Landscape figure in the...Ch. 18 - Prob. 2PITCh. 18 - Molecular data have changed protist...
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- Label the microscope slide like the drawing in the right.arrow_forwardDrag 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…arrow_forwardWhich microscope achieves the highest magnification and greatest resolution? phase-contrast microscope compound light microscope darkfield microscope electron microscope O fluorescence microscopearrow_forward
- There are many different types of microscopes that can be used in science. Research the function of each type of microscope below Stereomicroscopes Bright field microscope Dark field microscope Fluorescence microscope Phase contrast microscope Nomarski microscope Scanning electron microscope Transmission electron microscopearrow_forwardLabel the microscope slide like the labels in the drawing in the right.arrow_forwardHelp mearrow_forward
- Read the following scenarios carefully and determine which type of microscope is the most applicable to use. Karen is a scientist at a vast laboratory. She wants to evaluate the structural components of a plant cell, specifically the cell wall. Which is the best for her to use?arrow_forwardA student in the figure below is holding the microscope properly. Can you describe the right way to hold a microscope? Figurearrow_forwardSee previous diagram if you were using low power & wanted to view the number 6 on high power what do you need to do before switching to high power? Include in your answer the microscope knob used & the action you would performarrow_forward
- Careless Kris is using the microscope for the first time to look at cells and breaks a slide at high power. Explain to Kris the correct order of which objects lenses and focus knobs to use at each step when focusing a microscope from start to finish (hgih power).arrow_forwardCreate a flow chart that illustrates the process on how to manipulate a compound light microscope.arrow_forwardRead the following scenarios carefully and determine which type of microscope is the most applicable to use. A scientist is planning to observe a type of herpes virus under a microscope. He wants to assess if the specimen he is currently working on is the Epstein-Barr Virus, which is a type of Herpes Virus. What do you think is the most useful type of microscope for the scientist to use?arrow_forward
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