BIOLOGY 2E
2nd Edition
ISBN: 9781506699851
Author: OpenStax
Publisher: XANEDU PUBLISHING
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Textbook Question
Chapter 4, Problem 4RQ
When viewing a specimen through a light microscope, scientists use to distinguish the individual components of cells.
- a beam of electrons
- radioactive isotopes
- special stains
- high temperatures
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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 = 10 mm) in diameter, and
wants to viewa magnified image of a cell so that the cell appears to be
10 mm in diameter. Which objective lens should the student use?
10X
O 40X
O 100X
0 4X
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
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
- If you made a plant cell drawing and that drawing measured 100 mm, what is the plant cell's magnification that measured 20 µm under the microscope? Answer: You were interested to see a human cell under the microscope, so you went to the lab to look for a dye to stain human cells you looked for a stain called. Answer:arrow_forwardWhich 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_forwardWhy do we stain some organisms before viewing them under a microscope? (see top of p 14)arrow_forward
- Stains are used because O they bind evenly to all str they reduce contrast and make it easier to see cells on a bright background they increase contrast and can be used to distinguish between types of structures or cells they increase resolutionarrow_forwardThere 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_forwardWhat type of microscope would be best for studying the detailed structure of the surface of a plasma membrane? light microscope scanning electron microscope transmission electron microscope both a light microscope and an electron microscopearrow_forward
- Why is the microscope important to the study of biology?arrow_forwardExplain how a light microscope worksarrow_forwardWhich 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 microscopesarrow_forward
- Microscope As the mechanical stage is moved, the image moves in the same direction that the stage moves the image moves in the opposite direction that the stage moves the image moves left if the stage moves left while it moves up as the stage moves down the image moves right if the stage moves left while it moves down as the stage moves downarrow_forwardTypes of Dyes/Stains According to Charge: Staining procedure Charge of the chromophore/ colored ion Charge of the target cellular structure Applications/Target cell structurelsites Dye Examples Positive Staining Negative stainingarrow_forwardBoth light and electron microscopy are commonly used to visualize cells, cell structures, and the location of specific molecules. Explain why a scientist may choose one or the other microscopy technique for use in research.arrow_forward
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