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Differences between prokaryotic and eukaryotic cells

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Introduction

´╗┐Differences between Prokaryotic and Eukaryotic cells; 1. Eukaryotic cells have a nucleus which is bound by a double membrane whereas a Prokaryotic cell does not have a nucleus. The purpose of a nucleus is to keep all materials within the cell close together and therefore, the materials in a Prokaryotic cell are close to each other anyway. Furthermore, Prokaryotic cells don?t make DNA while Eukaryotic cells do. 1. Eukaryotic cells have ends and are called linear whereas Prokaryotic cells have no ends and are therefore called circular. 1. Eukaryotic DNA contains a protein called histones and is organized into chromosomes while Prokaryotic cells don?t have histones and therefore aren?t organized into chromosomes. 1. Ribosomes in a Eukaryotic cell are larger and way more complex than those in a Prokaryotic cell. ...read more.

Middle

1. Eukaryotic cells always have a cytoskeleton while Prokaryotic cells never do. 1. Prokaryotic cells divide by binary fission and Eukaryotic cells divide by meiosis and mitosis. 1. Reproduction is always asexual in Prokaryotic cells but asexual and sexual in Eukaryotic cells. 1. Prokaryotic cells have several metabolic pathways while Eukaryotic cells have the common metabolic pathways. Animal Cell; Centrioles- A pair of short microtubules which are involved in cell division. Cytoplasm- A solution within the cell membrane. It contains enzymes (part of respiration), and other metabolic reactions together with sugars, salts, amino acids, nucleotides and everything else needed for the cell to function. Nucleus- The largest organelle and is enclosed by the nuclear envelope. The nucleolus is largely involved in the making of ribosomes. Mitochondrion- Where Respiration takes place and ATP (energy) is made. ...read more.

Conclusion

Plant cell; Cytoplasm- contains all the enzymes needed for all metabolic reaction, as there are no organelles. Ribosomes- The site for protein synthesis. Nucleoid- The region which contains DNA. DNA- Always have a circular shape and are not associated with any proteins to form chromatin. Cell membrane- made of phospholipids and proteins. Flagellum- A rigid rotating helical-shaped tail used for propulsion. Vacuoles- They are membrane-bounds sacs containing water or dilute solutions of salt or other solutes. Chloroplasts- Where photosynthesis takes place in an organism and like Mitochondrion it is enclosed by a double membrane. Smooth Endoplasmic Reticulum- Series of membrane channels involved in synthesizing and transporting materials, mainly lipids, needed by the cell. Rough Endoplasmic Reticulum- Studded with numerous ribosomes, which give it its rough appearance. The ribosomes synthesize proteins which are processed here. Mitochondrion- Where Respiration takes place and ATP (energy) is made. Likewise, they are enclosed by a double membrane. ...read more.

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