What will be the aim and objective and conclusion of project report on plant and animal cell Please please answer my question I will mark you brainiliest only genius can answer this question prove that you are genius
Answers
Answer:
Hypothesis
It is predicted that all cells, no matter if it be plant or animal, will be in beside each other in large groups, that most of the major organelles will be visible through the microscope at 400X total magnification, the individual cells will be approximately 0.05mm in length/diameter..
Materials
Microscope (with 40X, 100X and 400X magnification)
Microscope Slides
Cover slips
Medicine dropper
Iodine Stain
Cheek cells
Toothpick
Methylene blue stain
Paper towels
Onion Skin
Water
Procedure
For the Onion Skin Cell
Peel off a small section of onion skin
Place the onion skin in the centre of the slide
Place the two drops of water on the onion skin. This is called a “wet mount”
Starting at one edge, gently lower a cover slip over the onion skin
Gently tap the slide with a pencil to remove any air bubbles
Place a drop of iodine at one edge of the cover slip. Touch the opposite edge of the cover slip with a paper towel to draw the stain under the slip
Place the slide on the stage under low power. Use the coarse adjustment knob to focus
Rotate the nosepiece to medium power. Use the fine adjustment knob to focus. Observe what you see
Repeat step 8, but this time switch to high power and draw what you see (use a pencil)
After you draw your diagrams, rotate the nosepiece back to low power. Remove the slide and dispose of the piece of onion, and wash the slide and cover slip
For the Cheek Cell
Take a clean toothpick and gently scrape the inside of your cheek
Prepare a wet mount like in steps 2-6. Instead, use the methylene blue solution as the dye
Observations
When observing the onion skin cell, we noticed that the cells took on a brick-like structure and within the cells, small dots (the nuclei) can be seen. When we first looked into the microscope, the microscope’s total magnification was 40X so there were about a hundred rows of rectangular cells (see diagram provided), but as we changed magnifications, the number of cells in the field of view decreased.
Conclusion
Furthermore, my stated hypothesis is somewhat correct and incorrect. I stated that all cells will be together in a large group, but now I realize that the statement was incorrect. Only the plant cells were together in a large group. The animal cells, however, were secluded, thus proving the statement wrong. Another statement that was incorrect was my estimation of the length/diameter. I stated that both the cells were about 0.05mm in length/diameter. Though it looked like the animal cell was slightly smaller, according to my calculations (diameter of FOV/# of times the object can fit across the FOV), the approximate length/diameter of the cells (both plant and animal) were 0.13mm. A correct statement in my hypothesis was that most of the important organelles are visible through the microscope. The important organelles that can be seen are the cell wall (for the plant cells), the cell membrane, the nucleus, and the cytoplasm. We can see those organelles due to the fact that they are the largest organelles in the cell and also due to the dye which brought them out. The final statement in my hypothesis was that the overall image will not be clear enough for further detail. This statement was correct because, other than the nucleus, the cytoplasm and the cell membrane/cell wall (for plants only), we cannot see any other organelle; the microscope simply didn’t have enough magnification to see them. Overall, I have learned that onion skin cells (plant cells) are rectangular and are always with other plant cells and cheek cells (animal cells) are circular and are secluded from each other, and that the smaller organelles cannot be seen with just our school microscope.
Discussion
The cheek cell, an example of an animal cell, generally has a circular, oval shape. Due to the fact that the cheek cell was not in groups or clumps, the arrangement of this type of cell is unknown. From previous labs, I remember that the cells were pushed together completely; each cell fitted beside another cell perfectly and so on. The animal cell structure is the most prominent in human cheek cells. The onion skin cell, an example of a plant cell, generally has a rigid, rectangular shape. The onion skin cells were positioned beside each other (length touching length, width touching width) and formed a checkered pattern. Also, like the cheek cell, the onion skin cells were pushed together so that no spaces were in between. Two differences between a cheek cell and an onion skin cell are that the onion skin cells has the chloroplast and cell wall organelles while the cheek cell doesn’t and the general shape of the onion skin cell is a rectangle and the general shape of the cheek cell is an oval.
Explanation: