Plant And Animal Cells Essay -- Biology Biological Cells Essays

congeal and Animal Cells I. IntroductionAll organisms in deportment are composed of at least(prenominal) one or more(prenominal) jail cadres. Cells are the primary units of life. there are one-third mainfeatures of a mobile phoneular telephone. First, all organisms consist of one or morecells. Second, cells are the smallest units of life and terce,cells arise only from preexisting cells. These three facts arereferred to as the cell theory.All cells bottom be categorized into two staple fibre cell types. They are prokaryotic and eucaryotic. To distinguish where cellsare laid in the two categories, what is inside the cell must send-off be looked at. Every cell, each prokaryotic or eukaryoticall contain basic cell parts. They are a plasma membrane,cytoplasm, DNA (the genetic material), and ribosomes. Prokaryotic cells have a simple structure and they are usuallysmaller than eukaryotic cells. Also, most prokaryotic cellscontain a cell wall. In addition to having the basic cell parts,eukaryotic cells likewise contain a membrane-bounded nucleus and cellorganelles. The membrane surrounding the nucleus in eukaryoticcells, separate the nucleus from the cytoplasm.Most of the cells we employ in the experiments held, weremulticellular or consisting of more than one cell. A variety ofcells were employ in completing the experiments. We used unioncells, cheek cells, white potato vine cells, and Elodeo cells. We also usedPlanaria which is a unicellular organism. Many stains and dyeswere used in the experiments. They were weewee, methylene blue,salts, and iodine. In our studies of cells, we conducted three experiments totest the contrastive features of cells. The first two experimentswere on how membranes were selectively permeable, diffusion, andosmosis. To test this, we set up two experiments. The firstexperiment we set up had three cups. In each cup a potato sliceand a different liquid was put in. In the first cup was filledwith distilled water. The sec ond cup was filled with salt waterand the third was left empty. We left these cups sit for twenty-four hours and then we notice them.The second experiment we set up involved dialysis tubingwhich was acting like a membrane. In the dialysis tubing we puta liquid that was make of starches and sugars. We then put thedialysis tubing into a beaker of water wh... ...c solution and sucked up some of the water in thecells. When we observed the cheek cells we found they were verydifferent from the whole works cells. The nucleus was in the middle ofthe cheek cells and there were a few cell organelles. ThePlanaria cell was all red and had lines running deal it. In thiscell though, the nucleus was not present.The plant cells and animal cells were very different. Inthe plant cells there was motion of cell parts but in the animalcells there was no motion. Also, the nucleus and chloroplast ofthe plant cell were towards the outside of the cell because thechloroplast can receive sunlight split u p on the outside of thecell than on the inside. In the animal cells though, the nucleusand cell organelles, were towards the middle of the cell.III. ConclusionsAll organisms in life are made of at least one or morecells. Cells are the basic units to life. Without cells lifecannot exist. In our experiments we went to look how cellsfunction and what are their features. In finding thisinformation, I know have a better understanding of how cellsfunction and their specific features. Plant And Animal Cells Essay -- Biology Biological Cells EssaysPlant and Animal Cells I. IntroductionAll organisms in life are composed of at least one or morecells. Cells are the basic units of life. There are three mainfeatures of a cell. First, all organisms consist of one or morecells. Second, cells are the smallest units of life and third,cells arise only from preexisting cells. These three facts arereferred to as the cell theory.All cells can be categorized into two basic cell types. The y are prokaryotic and eukaryotic. To distinguish where cellsare placed in the two categories, what is inside the cell mustfirst be looked at. Every cell, either prokaryotic or eukaryoticall contain basic cell parts. They are a plasma membrane,cytoplasm, DNA (the genetic material), and ribosomes. Prokaryotic cells have a simple structure and they are usuallysmaller than eukaryotic cells. Also, most prokaryotic cellscontain a cell wall. In addition to having the basic cell parts,eukaryotic cells also contain a membrane-bounded nucleus and cellorganelles. The membrane surrounding the nucleus in eukaryoticcells, separate the nucleus from the cytoplasm.Most of the cells we used in the experiments held, weremulticellular or consisting of more than one cell. A variety ofcells were used in completing the experiments. We used unioncells, cheek cells, potato cells, and Elodeo cells. We also usedPlanaria which is a unicellular organism. Many stains and dyeswere used in the experiments. They we re water, methylene blue,salts, and iodine. In our studies of cells, we conducted three experiments totest the different features of cells. The first two experimentswere on how membranes were selectively permeable, diffusion, andosmosis. To test this, we set up two experiments. The firstexperiment we set up had three cups. In each cup a potato sliceand a different liquid was put in. In the first cup was filledwith distilled water. The second cup was filled with salt waterand the third was left empty. We left these cups sit for twenty-four hours and then we observed them.The second experiment we set up involved dialysis tubingwhich was acting like a membrane. In the dialysis tubing we puta liquid that was made of starches and sugars. We then put thedialysis tubing into a beaker of water wh... ...c solution and sucked up some of the water in thecells. When we observed the cheek cells we found they were verydifferent from the plant cells. The nucleus was in the middle ofthe cheek cell s and there were a few cell organelles. ThePlanaria cell was all red and had lines running down it. In thiscell though, the nucleus was not present.The plant cells and animal cells were very different. Inthe plant cells there was motion of cell parts but in the animalcells there was no motion. Also, the nucleus and chloroplast ofthe plant cell were towards the outside of the cell because thechloroplast can receive sunlight better on the outside of thecell than on the inside. In the animal cells though, the nucleusand cell organelles, were towards the middle of the cell.III. ConclusionsAll organisms in life are made of at least one or morecells. Cells are the basic units to life. Without cells lifecannot exist. In our experiments we went to look how cellsfunction and what are their features. In finding thisinformation, I know have a better understanding of how cellsfunction and their specific features.