• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Compare and Contrast the structure and function of Prokaryote and Eukaryote cells

Extracts from this document...


´╗┐Nashya Fareed Eukaryotic and Prokaryotic Cells 23-sept-12 ________________ Compare and Contrast the structure and function of Prokaryote and Eukaryote cells: All living things are made of cells, and cells are the smallest units that can be alive. Life on earth is classified into five kingdoms, and they each have their own characteristic kind of cell. However the biggest division is between cells of the Prokaryote kingdom (the bacteria) and those of the four kingdoms (animals, plants, fungi and protoctista) which are all Eukaryotic cells. Prokaryotes were the only form of life on Earth for millions of years until more complicated eukaryotic cells came into being through the process of evolution. ...read more.


From the table we can also see that not only do prokaryotes have no membrane-bound organelles, but they are also much simpler, with far fewer organelles. However looking at the cell size we can see that prokaryotic cells are easily 10 to 100 times smaller than eukaryotic cell, which can perhaps explain why they are so simple in comparison to the eukaryotic cells. All eukaryotic cells have within them a functionally interrelated membrane system, the endomembrane system consisting of the nuclear envelope, ER and Golgi apparatus, vesicles and other organelles derived from them, and the plasma membrane. Many materials are moved around the cell by the endomembrane system, including some proteins. ...read more.


4. Ribosome?s, the organelles on which protein synthesis takes place Endosymbiosis As I have mentioned in the first paragraph: Prokaryotic cells are far older and more diverse than eukaryotic cells. Prokaryotic cells have probably been around for 3.5 billion years, while eukaryotic cells arose only about 1 billion years ago. It is thought that eukaryotic cell organelles like nuclei, mitochondria and chloroplasts are derived from prokaryotic cells that became incorporated inside larger prokaryotic cells. This idea is called endosymbiosis, and is supported by these observations: 1. Organelles contain circular DNA, like bacteria cells. 2. Contain 70S ribosome?s, like bacteria cells. 3. Organelles have double membranes, as though a single-membrane cell had been engulfed and surrounded by a larger cell. 4. Organelles reproduce by binary fission, like bacteria. 5. Organelles are very like some bacteria that are alive today. ________________ | Page ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Molecules & Cells section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Molecules & Cells essays

  1. Marked by a teacher

    Cellular organelles Structure and Function

    4 star(s)

    RER, which then pump their proteins in which they are producing into the lumen which are then despatched in vesicles to the Golgi body. A: Ribosomes B: Lumen Above: RER. Smooth endoplasmic reticulum (SER) The smooth endoplasmic reticulum has detoxifying qualities and breaks down drugs and poisons.

  2. An Essay on the Differences between Prokaryote & Eukaryote cells.

    As mentioned above the DNA lies free in the cytoplasm of prokaryotes, and lies linear and in a nucleus in eukaryotes. However, in prokaryotes the DNA is 'naked' and therefore is not associated with proteins or RNA to form chromosomes.

  1. Describe the difference between prokaryotic and eukaryotic cells. Describe the theory of endosymbiosis and ...

    and Golgi apparatus is found only in eukaryotic cells. The ER modifies (synthesizes RNA into protein) and transports pre-made materials to the Golgi apparatus, which modifies and packages these materials. The ER can be split into two types: rough (involved in protein synthesis) and smooth (involved in detoxification and manufactures lipids).

  2. The Structure of Prokaryotic and Eukaryotic cells.

    The eukaryotic ribosomes measure 80S (svedberg units) where as the prokaryotic ribosomes measure 70S. The development of the ER is linked with the development of the nucleus in the eukaryotic cell.

  1. Structure and function of Cell membrane system in Eukaryotic cells.

    Without this no cell can exist. Therefore phospholipids have one end which is attracted to water and another which is repelled by it, this enables them to form cell membrane. The cell membrane surrounding the outside of a cell, which is usually known as the cell surface membrane, has a few different functions.

  2. Compare and contrast the structure and function of Chloroplasts and mitochondria

    The number of mitochondrion present in each cell ranges from a few hundred to thousands and is dependant on the type of organism and the location of the cell. Cells with high energy requirements, such as myofibrils found in heart muscle, possess the most mitochondria while the less active cells contain far fewer.

  1. Structure and function of membrane systems in Eukaryotic cells.

    The cell membrane has many different functions. Here is a list of functions, which I shall explain in due course: * The cell membrane is a selectively permeable barrier regulating the movement of substances, which enter and leave the cell by various different processes.

  2. Distinguish between prokaryotic and eukaryotic cells. Compare and contrast the structures of a plant ...

    They also have a much more complicated chromosome structure compared with prokaryotes. The cell division that takes place in a prokaryotic cell does not involve the process of meiosis, it divides by binary fission. However, a eukaryotic cell will divide using mitosis and meiosis.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work