Biology

Biology 12
A. cellular phone Biology
1. Antonie van Leeuwenhoek - Was famous for making his take microscope and observing all sorts of tiny things that no one had seen before. rough 1650 he invented Animalicules.
2.The Englishman Robert Hooke was the first to use the term CELL for walled-off chamber he observed in cork, a material apply to make stoppers today. Monks live in cells.
3. A hundred years later-in the 1830s- the German microscopist Schleiden state that plants are composed of cells; his counterpart Schwann said that animals are also made up of cells..
4. Rudolf Virchow, another German microscopist, later came to the conclusion that cells dont suddenly appear, rather come from preexistent cells.
Virchow, Schleiden, and Schwann also come out with Cell Theory:
1. Cell is the basic unit of life.
2.Everything alive is made of cells or cell products; every(prenominal) living things are made of one or more cells.
3.All cells come from pre existing cells.
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Cells are mostly microscopic. Therere cardinal types of cells:
1.Prokaryotic before the kernel, no cellular organelles. Eg bacteria, blue car park algae, yeast. They have a single loop of DNA.
2.



Eukaryotic after the nucleus, have cellular organelles, have a nucleus( a life-size structure that controls the workings of the cell because it contains the genes)
Karyos - nucleus
Pro- before
Eu-after

Outer Boundaries of Animal and arrange cells
Plasma membrane - a phospholipid bilayer in which protein molecules are embedded. All cells, including plant and animal cells are surround by a plasma membrane.
The plasma membrane is a living bounds that separates the contents of the cell from the surrounding environment. Inside the cell, the nucleus is surrounded by the cytoplasm.
Cytoplasm is a semifluid medium that contains organelles. The plasma membrane regulates the entrance and exit of molecules into and out...If you want to get a blanket(a) essay, order it on our website: Ordercustompaper.com



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