The Eukaryotic Cell
W2: Assignment 2
Lisa Majdecki
South University Online
THE ORGANELLES OF EUKARYOTIC CELLS
. The difference between Prokaryotic and Eukaryotic Cells is organelles, membrane enclosed structures that perform specific duties. The most important of all is the “nucleus,” this holds the DNA and is surrounded by a double membrane. The Prokaryotic lacks a nucleus which is not partitioned from the other cells by membranes. The region between the nucleus and plasma membrane is called cytoplasm and in the Eukaryotic cell it consists of various organelles suspended in liquid cytosol. The most significant structural difference is that only eukaryotic cells have organelles (“little organs”), membrane-enclosed structures that perform specific functions. The most important organelle is the nucleus, which houses most of a eukaryotic cell’s DNA and is surrounded by a double membrane. A prokaryotic cell lacks a nucleus; its DNA is coiled into a “nucleus-like” region called the nucleoid, which is not partitioned from the rest of the cell by membranes. (Pg.58, p1)
THE PLASMA MEMBRANE Like all other cellular membranes, the plasma membrane consists of both lipids and proteins. The fundamental structure of the membrane is the phospholipid bilayer, which forms a stable barrier between two aqueous compartments. In the case of the plasma membrane, these compartments are the inside and the outside of the cell. Proteins embedded within the phospholipid bilayer carry out the specific functions of the plasma membrane, including selective transport of molecules and cell-cell recognition. Mitochondrion is the power house of cell that aids in producing energy for the cellular metabolism. MITOCHONDRIA IS PRESENT IN BOTH PLANTS AND ANIMAL CELLS.
They are related to dietary fats but have only two fatty acid tails instead of three. In place of the third fatty acid a phospholipid, has a combination of phosphorous and oxygen. The phosphate group makes
Lisa Majdecki
South University Online
THE ORGANELLES OF EUKARYOTIC CELLS
. The difference between Prokaryotic and Eukaryotic Cells is organelles, membrane enclosed structures that perform specific duties. The most important of all is the “nucleus,” this holds the DNA and is surrounded by a double membrane. The Prokaryotic lacks a nucleus which is not partitioned from the other cells by membranes. The region between the nucleus and plasma membrane is called cytoplasm and in the Eukaryotic cell it consists of various organelles suspended in liquid cytosol. The most significant structural difference is that only eukaryotic cells have organelles (“little organs”), membrane-enclosed structures that perform specific functions. The most important organelle is the nucleus, which houses most of a eukaryotic cell’s DNA and is surrounded by a double membrane. A prokaryotic cell lacks a nucleus; its DNA is coiled into a “nucleus-like” region called the nucleoid, which is not partitioned from the rest of the cell by membranes. (Pg.58, p1)
THE PLASMA MEMBRANE Like all other cellular membranes, the plasma membrane consists of both lipids and proteins. The fundamental structure of the membrane is the phospholipid bilayer, which forms a stable barrier between two aqueous compartments. In the case of the plasma membrane, these compartments are the inside and the outside of the cell. Proteins embedded within the phospholipid bilayer carry out the specific functions of the plasma membrane, including selective transport of molecules and cell-cell recognition. Mitochondrion is the power house of cell that aids in producing energy for the cellular metabolism. MITOCHONDRIA IS PRESENT IN BOTH PLANTS AND ANIMAL CELLS.
They are related to dietary fats but have only two fatty acid tails instead of three. In place of the third fatty acid a phospholipid, has a combination of phosphorous and oxygen. The phosphate group makes
References: Simon, Reece, Dickey, E. (2012). Campbell Essential Biology with Physiology (4th ed). Pearson Learning Solutions. Retrieved from http://digitalbookshelf.southuniversity.edu/books/9781256902089/id/ch04fig4 http://micro.magnet.fsu.edu/cells/golgi/golgiapparatus.html http://answers.yahoo.com/search/search_result?type=2button&p=%20Describe%20the%20structure%20and%20function%20of%20each%20of%20the%20eukaryotic%20organelles