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Cell Theory - Assignment Example

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The paper deal with the cell theory, that tells "cell is the basic unit of life". Although cells are alive by themselves, they are usually a part of a larger living organism. Bacteria the smallest living organisms on earth and are made of a single cell …
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Cell Theory
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"Cell Theory"

Download file to see previous pages The paper describes all the peculiarities of the cell theory. A cell organelle is the part of a cell that has a specific function. Organelles are usually located inside the cytoplasm of a living cell, and are typically enclosed in a membrane called plasma membrane. They are called "organelles" because their importance to a cell is analogous to the importance of organs of to a body. Both prokaryotes and eukaryotes have cell organelles; however, there are some important differences between the two. The organelles in prokaryotic cells are not organized or enclosed in plasma membranes. Major cell organelles include chloroplasts, endoplasmic reticulum, golgi apparatus, mitochondria, nucleus and vacuoles. Chloroplasts have double membranes as well as their own DNA, and perform photosynthesis. They are present in plants and some algae. Endoplasmic reticulum (ER) has a single membrane and is responsible for transport as well as synthesis of proteins. It is of two types – rough ER, whose surface appears to be rough because of the presence of ribosomes, and smooth ER, whose surface appears to be smooth. Golgi apparatus is also singe-membraned and is responsible for protein sorting and modification....
Both prokaryotes and eukaryotes have cell organelles; however, there are some important differences between the two. The organelles in prokaryotic cells are not organized or enclosed in plasma membranes. Major cell organelles include chloroplasts, endoplasmic reticulum, golgi apparatus, mitochondria, nucleus and vacuoles. Chloroplasts have double membranes as well as their own DNA, and perform photosynthesis. They are present in plants and some algae. Endoplasmic reticulum (ER) has a single membrane and is responsible for transport as well as synthesis of proteins. It is of two types – rough ER, whose surface appears to be rough because of the presence of ribosomes, and smooth ER, whose surface appears to be smooth. Golgi apparatus is also singe-membraned and is responsible for protein sorting and modification. The mitochondrion is also called as the powerhouse of the cell because it is responsible for energy production, and like chloroplasts, it also has a double membrane and its own DNA. The nucleus has both Deoxyribonucleic acid (DNA) and Ribonucleic acid (RNA) and is responsible for maintenance and proper distribution of DNA during cell division. Vacuoles function as storage reservoirs of the cell. Minor organelles of the cell include autophagosomes that collect material from the cytoplasm for degradation, centrioles that enable cell division, ribosomes that help in the production of proteins, lysosomes that are responsible for processing or breakdown of large molecules into simpler ones, nucleolus that produces ribosomes, and vesicles that function as material transporters in the cell. Many other organelles exist based on the type of organism. ...Download file to see next pagesRead More
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jennievolkman added comment 6 months ago
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At first, I thought 9 of pages is too much for such a subject. But now I see it could not be done smarter. As the author starts you see the complexity of the issue. I’ve read all at once. Great sample
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