Structure And Functions Of The Cell Essay

1386 Words Sep 9th, 2015 6 Pages
A cell is the basic unit of life, and all organisms are made up of one or many cells. Human bodies are made up of around 200 different types of cells, all working together, and all day every day. Each cell must make the molecules it needs to survive, grow, multiply and complete its task(museum, 2015). Cells are units of structure and functions of which all plants and animals are composed. The cell is the smallest unit in the living organism that is capable of integrating the essential life process. Cells can be separated into two diverse groups: Prokaryotic cells are those that do not have a membrane-bound nucleus. There are few well-distinguished internal structures in prokaryotes, in contrast to the multitude of distinct organelles in eukaryotes. The genetic information of prokaryotes (DNA) is typically in nucleoid of DNA strands, but they may have additional DNA in a circular loop called a plasmid(Hyperphysics.phy-astr.gsu.edu, 2015).While, Eukaryotic cells contain other membrane-bound organelles such as mitochondria and the Golgi apparatus. In addition, plants and algae contain chloroplasts. Many unicellular organisms are eukaryotes, such as protozoa. All multi-cellular organisms are eukaryotes, including animals, plants and fungi(Wikipedia, 2015).
Organelles are tiny structures that perform very specific functions within cells. The term is a reference to organs, likening the way these structures operate in cells to the way organs function in the body. A number of…

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