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    in the cell, which is why it was more flexible. V. Conclusion In conclusion, the explanation behind the salt water solution causing the onion pieces to become more flexible is because the solution was a hypertonic solution, which drove water out of the cell leaving an empty space...
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  • Cell Biology Meiosis and Mitosis
    a few of the cell nucleus have been stained. This makes it difficult for us trace the various stages of mitosis. This problem is resolved however by making a new set of the onion root tip slide. 5) Conclusions and Recommendations In conclusion, the experiment was a success and all of the...
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  • Report
    the differences between potato cells and onion cells. It is because potato cells and onion cells are differ from structures because of their adaption features are not exactly the same. Conclusion The purpose of this experiment is to determine the difference between a plant and animal cell while...
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  • research
    Observing Onion Cells Science 8 Observing Onion Cells ***Do not write anywhere on this piece of paper!!! It will be used again this afternoon!!!***** Instructions. On a piece of paper, write the title (see above), the date, your block, and your name. Then copy out the...
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  • Bio. Lab. Report - Membrane Transport
    glass slide; 2. The glass slide is slowly lowered down on the epidermal layer using the needle; 3. The onion cells are examined through the microscope; 4. The structure of the onion cells is drawn as observed under the microscope. Results & Observations: In the hypotonic...
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  • epidermic cell observation
    1.3 7 43 6.5 0.6 6 37 7.0 0.8 5 31 9.0 0.8 4 24 13.0 0.8 3 18 14.3 1.3 2 12 17.0 0.8 1 6 30.8 1.0 Graph 1  Conclusion and evaluation Conclusion The epidermal cell number is closest to an exponential function (y=2.7763e0.2159x) of the age of layers in one Allium...
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  • Osmosis in Red Onion Cells
    Osmosis in Red Onion Cells By: Youssef Gharib Brief Description of Osmosis in Red Onion cells: Osmosis is the diffusion of water from an area of low concentration to an area of high concentration across a semi-permeable membrane. The purpose of this lab is to compare the three different types...
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  • Osmosis
    hypotonic while when we observed the onion is shrink that mean it is in hypertonic and lastly when we observed and no changes occur that mean it is in isotonic. CONCLUSION: As a conclusion, if a solution is hypertonic, the concentration of solutes is greater than it is inside the cell. The cell...
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  • Onion Cell
    long and wide. Conclusion: Using the light microscope, the cells within the onion was identified as shown in the diagram which shows the cell wall, cell membrane, nucleus and cytoplasm. References: Class booklet about plant and animal cells as well as the experiment sheet....
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  • Title
    Lab Report Problem: What does a cheek cell look like? Hypothesis: A group of cells that look like a brick wall with a possibility to see something moving. Materials: * Microscope * Tweezers * Syringe * Wet mounts(Slides and slide covers) * Toothpicks * Onion(Onion...
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  • The Cell structure and function
    slice of potato, and a thin skin of red onion. The potato was dyed with iodine while the red onion was dyed with methane blue. The students had to assemble the first three slides. Two more slides were provided these are the yeast and protozoa cells. Those two are also viewed with the same microscope...
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  • Compare the Size of Cheek Cell and Onion Cell
    colourless - A drop of methylene blue was added, cheek cell (Homo sapiens) turned blue. - Rounded in shape - Smaller than onion cell (Allium cepa) CE Conclusion: After all the investigation, it proves that plant cell has a larger size than animal cell. As the graph show, the sizes of Homo...
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  • Macromoleules of Life
    shapes to it and with the IKI reagent should look have more of a stronger shapes and color to it. The onion cells should have a more stringy look to it and with the IKI more color. The fourth experiment is testing for lipids using the Sudan III on a potato, onion, oil and dH2O. I believe the oil will...
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  • research Paper
    (the onion) and of an animal (the participant) using the epidermis and cells from a cheek swab of epithelial tissue. Materials 1. Packet Pages L14 to L16 2. Onion Chunks 3. Compound Microscope 4. Microscope Slides 5. Covers Slips 6. Water 7. Pipette 8. Lugol’s Iodine Solution 9. Tweezers...
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  • Biology
    Aim In this assignment I am going to carry out a practical examination on a plant (onion) and an animal (cheek) cell under a light microscope. The stain methods I am going to use are iodine for my onion cell and methylene blue for my cheek cell. Introduction All animals and plants are made...
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  • Cells Biological
    on the slide. When observing the specimen, adjust the iris diaphragm or light level to achieve optimum contrast. Low power is always to be used first as to know the location of a good area for observation. Conclusion: Starch grains Onion cells Cell wall, cell membrane, cytoplasm and nucleus...
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  • Ap Biology: Cells Have Kinetic Energy
    , conclusions could have been made.  It is thought that the onion cells would have plasmolyzed due to the addition of NaCl to the cells.  This shows how the onion cells had high water potential and moved to the area outside the cell with lower water potential.  Then, after adding water back to the cells...
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  • Osmosis
    . Discussion Questions: 1. What happened to the onion skin after flooding it with salt solution? What could be a possible explanation to such observation? o Crenation happens (where the cytoplasmic contents of the cell pull away from the rigid cell wall) because the onion skin is exposed to a...
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  • bio reports
    : Include a fully labeled drawing of the onion skin cell structure and of the animal cell structure [inside cheek cells]. Conclusion: Refer back to the purpose and state if you achieved this purpose. Discussion: Keep this short – explain concisely what you have learned about the cell structure...
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  • Onion and Calamansi Extract as Cockroach Killer.Docx
    acid. These substances are normally is separate cell in the tissues, but when the onion is cut and bruised, rupturing the cells, the reaction take splace. In the late 1970s a chemical was identified as propanethal S-oxide, the onion chemical that makes the people tear-up. Onions are frequently used...
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