What is Brownian motion, and what level of magnification is needed to see this movement in living tissue?
The ________________________equation demonstrates the use of light and its relationship to a given molecules concentration.
Why does oil immersion increase resolution so effectively?
1.Brownian emotion is the the movement of microscopic molecules in a fluid due to continuous bombardment with each other. It is seen at a magnification of 400x.
2.Lambert beer law
Log Io/I = Ecl
3. Oil immersion increases resolution effectively because it increases the refractive index of the medium which further increases the numerical aperture. An increase in the value of numerical aperture decreases the distance between the two object that can be resolved by the microscope thereby increasing resolving power.
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What is Brownian motion, and what level of magnification is needed to see this movement in...
3. What is the difference between magnification and resolution? Magnification = enlarge What is the purpose of placing immersion oil on the slide? Immersion oil reduce scattering of light or refraction, Explanation @ the Botton! 5. What are the advantages of electron microscopes as compared to light microscopes? Electron has very small wave length Compaled to visible lights 6. Give at least five major differences between prokaryotic and eukaryotic cells. 7. If the ocular magnification is 10X and the oil...
1. Name at least 3 ways you can control the amount of light that reaches the ocular lens. 2. Define resolution. What is the limit of resolution for the light microscope? 3. What effect does the wavelength of light used have on resolution? 4. If you view a bacterial smear under the oil immersion lens, but forget to add oil, will the image still be just about as clear as if you had added the oil. 5. Define parfocal. 6....
please please help with all of them no thorough explanation needed! 5. Select the most appropriate answer. When using a dichotomous key outside to identify unknown organisms one should A. not remove parts of the plant or disrupt the ecosystem B. be aware of hazards such as ticks and poison ivy C. should write down the steps followed on the key. D. Be aware that your best attempts to identify a specimen might be disrupted by the presence of sexual...
1. Fill out the following table by indicating which general technique (light microscopy (LM) or electron microscopy (EM]) could be used to observe each structure or phenomenon. Put "no" in the box if the technique could not be used. If light microscopy can be used, name one technique (bright-field, phase-contrast, fluorescence, etc.) that you think would be effective. You will find some useful information in Appendix 1 of this manual and Chapter 18 of your textbook. Structure or phenomenon Could...
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MOURE 2.1 Phase-contrast microscopy. B - D readed by p o dbye eople ) PROCEDURE Wol-Mount Technique 1. Suspend the infusions by string or shaking them carefully. Using a Pasteur pipette transfer a very small drop of one day inson to a slide, or transder a loopt using the inoculating loop as demonstrated by your instructor Handle the coverstip carefully by its edes, and place it on the drop Gently press on the coverslip with the end of a...
1) Discuss the importance of magnification and resolution in microscopy. How are the magnification and resolution of a light microscope different from that of an electron microscope? 2) Which microscope would you use to study the following? a) the changes in shape of a living human white blood cell b) the finest details of the surface texture of a human hair c) the detailed structure of an organelle in a liver cell 3) State the cell theory?...
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6-23 Describe any differences in movement of the protists between the treatments. Do you see any difference in the speed or pattern of movement in the organisms between the two treatments? SYNGAMY DOS > Mitosis - Zygote (2) Feeding plasmodium cas Mature plasmodium Mature (preparing to fruit) sporangium Amoebold sporangium Flagellated Young cel B ell Germinating spore ca Spore Haploid () Diploid (n) Plasmodial slime mold life cycle Experiment: Phototaxis Demonstration...
Suppose someone claims that color can be explained by the physics of light. What evidence argues against that claim Diffraction of light by a prism Binocular depth perception Optical illusions Color vision deficiency QUESTION 2 A gray square could look blue, yellow, or any other color, depending on its surround True False QUESTION 3 When you view a tabletop, its front side makes a bigger image on your retina than the back side does, but you perceive it as rectangular....
can you please help with # 4-6
3. You make a solution that contains 1000 molecules of water. 90 molecules of glucose, and 120 molecules of sucrose. What is the solute concentration of this solution? (2 points) 17.35/ 4. You now add a cell into the solution from question 3. This cell has a 20% solute concentration. a. Is the outside of the cell hypertonic, hypotonic, or isotonic when compared to the inside of the cell? How do you know?...
1. What are the different sources of energy available to living organisms? 2. How do the acquisition and the use of energy by living organisms work according to the laws of thermodynamics? 3. Explain the energy use in the following reactions: endergonic/exergonic. 4. What is metabolism? How are chemical reactions related to metabolism? Why is energy needed to run a metabolism? What are coupled reactions? 5. Draw a picture of ATP. Why is this molecule so important for cells? How...