Bradley

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 Cell Lab Pict

a. The chloroplasts did not appear to move. b. I think that the chloroplasts move in the same direction in each cell. But, the direction varies in each cell depending on how the energy (light) hits them. c. They use the energy from the sun to propel themselves around the cell. a. The cells are filled with large bubbles (leukoplasts) and the nucleus and other  organelles are hard to see. The cell wall is visible. b. No, there were no chloroplasts in the potato. e. Potatoes grow in the ground, so there would be no use for the chloroplasts since they  receive no sunlight. (C and D below) c. Iodine is a brownish/black color as it leaves the bottle. It stains the potato cells black. d. Yes, there is starch in potato cells. This starch is located in the  leucoplasts. a. No, I don't think they will, because onion skin contains no starch. b. Yes it does. There was no noticable difference in the onion skin without iodine compared to the onion skin with iodine. <span style="color: rgb(75, 6, 7);">Note==there should have been Kyle. For one thing the nucleus is much more obvious with dye. <span style="color: rgb(11, 14, 131);">Look above at the Onion Skin without iodine for the questions. a. Yes, the tomato skin is more then one cell thick. But, it is still not very thick at all. b. No they are not. <span style="color: rgb(75, 6, 7);">What are they not? <span style="color: rgb(230, 30, 30);"> <span style="color: rgb(11, 14, 131);">They are mostly circular, and mostly look like bent or stretched rectangles. c. You see greenish cell walls, but I'm sure there is red pigment in there that I did not see. d. The plastids in tomatoes are called chloroplasts, but they contain no chlorophyll. e. The cell wall is pretty thick (because it is skin) but it is also flexible to allow water and other materials to come in. <span style="color: rgb(11, 14, 131);">a. The color of the cell is reddish/white. b. The shape of the cells are mostly squished circles. c. The cell wall is much thinner in the pulp compared to the skin. d. The skin cell wall is thick because it needs to protect the tomato outside, but it is also flexible to allow water to come in. Meanwhile, the tomato pulp cells are thin because they serve no need to protect the tomato. Instead, they focus on just absorption. e. Yes, it is. There are much less chromoplasts in the pulp then there is in the skin. f. The skin is red because it has highly concentrated chromoplasts, even though it is thin. The pulp appears red because even though they have less chromoplasts and they are more spread out, they are much denser then the skin and therefore also appear red. a. The cell wall appears thin. b. Yes, there are pigments, and they are red. c. They are dispersed throughout the cytoplasm, which is why the whole slide appears red. d. Yes, I guess it could be <span style="color: rgb(255, 255, 0);">.<span style="color: rgb(75, 6, 7);">I do not know what you are answering by reading this! <span style="color: rgb(11, 14, 131);">But, this pigment is much more spread out, while the pigment in the tomato is centralized in plastids. NOTE: The "Cell Membrane" on the left side of the picture should say "Cytoplasm". a. No, they do not have a cell wall. They only have a cell membrane. b. No, they do not all appear the same. This is because they shave off differently compared to other cheek cells. c. The cells contain vacuoles and a nucleus, but they do not contain chloroplasts.

1. Plant and animal cells are similar because they: a. Both have vacuoles b. Both have a nucleus c. Both have a cell membrane. d. Both have the same basic organelles (ex. lysosomes, mitochondria, etc.) 2. There are a couple of structural differences between plant cells and animal cells. First, plant cells have a cell wall and a cell membrane; animal cells only have the cell membrane. Also, a plant cell is structured around a central vacuole which gives it its shape. Meanwhile, the animal cell is not supported by a vacuole. Instead, it self-supports itself with a cytoskeleton. 3. Cells taken from different areas in an organism can still be very similar. For instance, they will both have the same basic organelles, such as lysosomes, mitochondria, and ER. Also, both will have the same "shell", depending on if it's a plant cell (cell wall) or an animal cell (no cell wall). Last, the organelles will still perform the same basic tasks. For example, the mitochondria will always be the powerhouse of the cell, and so on. 4. Staining the cells in the activity can serve a good cause. Staining the potato cells with iodine helps identify where the starch is (the leucoplasts). Staining the onion skin helps identify the organelles. <span style="color: rgb(75, 6, 7);">Teacher comment: The photos are very good. You labeled what you should. Although you did not have to rewrite the question, you should give me a clue as to what you are talking about. I should not have to go back to read the question. you had a couple of spelling errors. NO CONCLUSION!!!!! 82% adjusted grade 90% <span style="color: rgb(11, 14, 131);"> Kyle's note: I did the conclusion and attempted to respell the misspelled words.
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