Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 4, Problem 25CTQ
In your everyday life, you have probably noticed that certain instruments are ideal for certain situations. For example, you would use a spoon rather than a fork to eat soup because a spoon is shaped for scooping, while soup would slip between the tines of a fork. The use of ideal instruments also applies in science. In what situation(s) would the use of a light microscope be ideal, and why?
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Students have asked these similar questions
What description best describes the compound light microscope?
Uses a beam of electrons is transmitted through a specimen to form an image.
Has more than one lens and its own light source. In this type of microscope,
there are ocular lenses in the binocular eyepieces and objective lenses in a
rotating nosepiece closer to the specimen.
An optical imaging technique for increasing optical resolution and contrast of a
micrograph by means of using a spatial pinhole to block out-of-focus light in
image formation.
Designed for low magnification observation of a sample, typically
using light reflected from the surface of an object rather than transmitted
through it.
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 microscope
The following questions talk about increasing magnification in microscopes. Please answer questions 1 and 2
After a specimen is in focus, where in the field of view should position the specimen before increasing the magnification (be precise)?
(QUESTION 2 HAS TWO PARTS TO IT):
To increase the magnification, which objective should you click into position next?
After refocusing the specimen with the new objective, if you want to increase the magnification even more, which objective should you now click into position?
Chapter 4 Solutions
Biology 2e
Ch. 4 - Figure 4.7 Prokaryotic cells are much smaller than...Ch. 4 - Figure 4.8 If the nucleolus were not able to carry...Ch. 4 - Figure 4.18 If a peripheral membrane protein were...Ch. 4 - When viewing a specimen through a light...Ch. 4 - The is the basic unit of life organism cell tissue...Ch. 4 - Prokaryotes depend on to obtain some materials and...Ch. 4 - Bacteria that lack fimbriae are less likely to...Ch. 4 - Which of the following organisms is a prokaryote?...Ch. 4 - Which of the following is surrounded by two...Ch. 4 - Peroxisomes got their name because hydrogen...
Ch. 4 - In plant cells, the function of the lysosomes is...Ch. 4 - Which of the following is both in eukaryotic and...Ch. 4 - Tay-Sachs disease is a genetic disorder that...Ch. 4 - Which of the following is not a component of the...Ch. 4 - The process by which a cell engulfs a foreign...Ch. 4 - Which of the following is most likely to have the...Ch. 4 - Which of the following sequences correctly lists...Ch. 4 - Congenital disorders of glycosylation are a...Ch. 4 - Which of the following have the ability to...Ch. 4 - Which of the following do not play a role in...Ch. 4 - In humans, are used to move a cell within its...Ch. 4 - Which of the following are only in plant cells?...Ch. 4 - The key components of desmosomes are cadherins...Ch. 4 - Diseased animal cells may produce molecules that...Ch. 4 - In your everyday life, you have probably noticed...Ch. 4 - In what situation(s) would the use of a scanning...Ch. 4 - In what situation(s) would a transmission electron...Ch. 4 - What are the advantages and disadvantages of each...Ch. 4 - Explain how the formation of an adult human...Ch. 4 - Antibiotics are medicines that are used to fight...Ch. 4 - Explain why not all microbes are harmful.Ch. 4 - You already know that ribosomes are abundant in...Ch. 4 - What are the structural and functional...Ch. 4 - Why are plasma membranes arranged as a bilayer...Ch. 4 - In the context of cell biology, what do we mean by...Ch. 4 - In your opinion, is the nuclear membrane part of...Ch. 4 - What are the similarities and differences between...Ch. 4 - How do cilia and flagella differ?Ch. 4 - Describe how microfilaments and microtubules are...Ch. 4 - Compare and contrast the boundaries that plant,...Ch. 4 - How does the structure of a plasmodesma differ...Ch. 4 - Explain how the extracellular matrix functions.Ch. 4 - Pathogenic E. coil have recently been shown to...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- What are microscopes? Make a brief outline of the history of microscopes? Relate microscopy with our present status in the scientific and economic world. What are wet mounts? How to prepare wet mounts? How to remove water bubbles in wet mounts? What are the steps in manipulating / focusing the microscope? What are the reminders before storing the microscope? How many times an object is enlarged when a) HPO is used LPO is used Oil immersion objective a. when to use the coarse adjustment knob? when to use the fine adjustment knob if given the chance to manipulate the microscope, what particular specimen would you like to see first . Why ? Conclusion : state your conclusionarrow_forwardRead 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…arrow_forwardYou have a microscope equipped with 10 x oculars and 4 objectives, which exhibit the following characteristics (M, NA): Tick the right answers:o Objectives B and C are equivalent.o Objective D will allow more detailed observation than objective C.o To see small structures, you should choose objective D rather than C.o Objective D has a lower resolution than objective C.o To observe large objects, it is better to use objective B rather than objective Carrow_forward
- Do you consider the microscope as the best representation of a medical technologist? Why or why not? Explain your answer.arrow_forwardCareless 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_forwardThis type of microscope is use to study the detail in samples. It produces a three-dimensional image of the specimen.(a). Compound Light Microscope(b). Scanning Electron Microscope(c). Transmission Electron Microscope(d). Dissection Microscopearrow_forward
- Which of the following microscopes typically requires the use of vital dyes (like methylene blue) to visualize large subcellular structures in a living cell (like the nucleolus or the mitochondrion)? the scanning/tunneling electron microscope (STEM), with good resolution up to about 100,000,000x the transmission electron microscope (TEM), with good resolution up to about 100,000x the scanning electron microscope (SEM), with good resolution up to about 1,000,000x the compound light microscope, with good resolution up to about 1,500x all of the above microscopes would be equally useful in visualizing the interior of organellesarrow_forwarda. Do you open both eyes or close one eye when viewing a specimen under a microscope? Why? Why not? b. In using a compound microscope, do you start with the low power objective (LPO) or the high power objective (HPO)? Why or Why not? c. When using 60X, do you it together with the coarse adjustment knob or fine adjustment knob? d. Why must you slowly turn the fine adjustment knob? e. Is natural light or is artificial light used when using the microscope?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_forward
- Do you think microscope is an essential and important science tool and as a student, how will you take care of a microscope knowing its importance?arrow_forwardWhat is the purpose of using microscopes? If you need to move the microscope, describe how you should carry it. What three things change as you increase magnification? On the compound microscope, what power must be in place when you first find an image in themicroscope? On the compound microscope, which adjustment knob is used for bringing the specimen intofocus? On the compound microscope, which adjustment knob is used for sharpening the image of thespecimen after it is focused? On the compound microscope, which adjustment knob should you use on the high power? On the compound microscope, how do you change the objective lenses? What should be included when sketching or drawing what is seen through the microscope How do you properly use a microscope?arrow_forwardHow has the use of the binocular microscope contributed to the study of science? (Use for Report, Write more as u can)arrow_forward
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