Pre Ap Biology Research Paper - 2120 Words

Hannah Porter Mr. Condo Pre-AP Bio-1 November 4, 2014 Pre-Ap Biology Research Paper The cell is the basic unit of life and is the smallest, simplest organism that can perform all of life’s functions. The cell was discovered in 1665 by Robert Hooke. The three types of cells are plant cells, animal cells, and prokaryotic cells. These cells share many qualities but are also different in many ways. There are a few organelles that exist in all three types of cells. The first of these is the cell membrane (also known as the plasma membrane). The plasma membrane is the outer boundary of the cell that protects the cell from its surroundings. It is selectively permeable because it controls what enters and exits the cell. Carl Naegeli and C. Cramer discovered the plasma membrane in 1855. The cytosol is also present in the Plant, Animal, and Prokaryotic cells. The cytosol is the thick, gelatin-like liquid in the cell that accounts for almost 70% of its volume. The cytosol of a cell is the substance in which the organelles are suspended and it provides the proper conditions for their function and movement. The cytosol was discovered by Albert Claude, Christian de Duve, and George E. Palade in 1835. A third structure contained in all three types of cells is the ribosome. Ribosomes are spherical in shape and are made up of RNA and protein. They are often found on the endoplasmic reticulu m. Ribosomes are important in the manufacturing of proteins and are the site atShow MoreRelatedHow Do Gender Stereotypes Affect The Decisions Our Youth?1358 Words   |  6 PagesThese ideas are often cemented through classroom interactions, the most influencing one being student to teacher. With 943 hours of instruction time, this interaction sets the relationship between the child and the expectation for success. It starts in pre-school where the instructor lines or seats the children based on gender. â€Å"Everyone must line up boy, girl, boy, girl† (O’Neill). 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