3 Differences and 3 Similarities of Prokaryotes an
DIFFERENCES
Eukaryotic cells have a nucleus with DNA contained in them
Eukaryotic cells have membrane bound organelles
Prokaryotic DNA is circular and eukaryotic DNA is arranged in chromosomes
SIMILARITIES
Both cells have DNA and RNA
Both cells use energy
Both control the movement of nutrients and waste matter in and out of the cell
1 of 3
2 of 3
Cell Organelles
Nucleus controls the activity of the cell as it contains the DNA, information for protein synthesis. It is continuous with the endoplasmic reticulum. The nucleus contains the nucleolus which manufactures: ribosome subunits, ribosomal RNA and transfer RNA
Rough Endoplasmic Reticulum is the sight of protein synthesis (on the ribosomes), storage, transport and preparation for secretion
Smooth Endoplasmic Reticulum the site of steroid and lipid synthesis
Ribosomes are thesite of protein synthesis and have 2 subunits and no membrane. Can be free or attached to RER
Mitochondrion is the site of aerobic respiration with a highly folded inner membrane containing enzymes for respiration. They are abundant in physically and metabolically active cells
Golgi body modifies cell products and encloses them in vesicles to be secreted such as insulin. Also involved in lipid modification and formation of lysosomes
Plasma Membrane is made of a phospholipid bilayer with proteins spanning the membrane controlling the entry and exit of soluble substance
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