which 5 scientists contributed to the cell theory?
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Although cells were first observed in the 1660s by Robert Hooke, cell theory was not well accepted for another 200 years. The work of scientists such as Schleiden, Schwann, Remak, and Virchow contributed to its acceptance.
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The cell (from Latin cella, meaning "small room") is the basic structural, functional, and biological unit of all known organisms. A cell is the smallest unit of life. Cells are often called the "building blocks of life".
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['Muhammad (570 – 632 AD) Prophet of Islam.', 'Isaac Newton (1642 – 1727) – British mathematician and scientist.', 'Jesus of Nazareth (c. ... ', 'Buddha (c 563 – 483 BC) Spiritual Teacher and founder of Buddhism.', 'Confucius (551 – 479 BC) – Chinese philosopher.', 'St. ... ', "Ts'ai Lun (AD 50 – 121) Inventor of paper."]
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Cells are significant as they are the very basis of life. In 1839, scientists Theodor Schwann and Matthias Schleiden developed the tenets of classical cell theory, stating that: All organisms are made up of one or more cells. Cells are the fundamental unit of life.
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Correct answer: C). All living organisms are composed of one or more cells, which came from pre-existing cells. It is an example of cell theory. The cell theory in a biology is a theory which is given after conclusion and observation of many scientists and is universally accepted a theory.
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The five central themes of biology are structure and function of cells, interactions between organisms, homeostasis, reproduction and genetics, and evolution.
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The five most important core principles were "cell membrane," "homeostasis," "cell-to-cell communications," "interdependence," and "flow down gradients." We then "unpacked" the flow down gradients core principle into the component ideas of which it is comprised.
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The cell theory states that all living things are composed of cells. It also says that cells are the basic units of structure and function in living things and new cells come from existing cells. The cell theory is significant to biology because all living thing are made of cells.
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['Cell Membrane (Plasma Membrane)', 'Cytoplasm.', 'Nucleus.']
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The three scientists that contributed to the development of cell theory are Matthias Schleiden, Theodor Schwann, and Rudolf Virchow. A component of the cell theory is that all living things are composed of one or more cells. A component of the cell theory is that the cell is the basic unit of life.
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["Nucleus. The nucleus can be thought of as the cell's headquarters. ... ", 'Plasma membrane. ... ', 'Cytoplasm. ... ', 'Lysosomes and peroxisomes. ... ', 'Cytoskeleton. ... ', 'Endoplasmic reticulum. ... ', 'Golgi apparatus. ... ', 'Mitochondria.']
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Cellular Theory Defined Classical cell theory, first proposed by Matthias Schleiden and Theodor Schwann, consisted of three primary points: ... Living cells can come only from other pre-existing cells. Modern cell theory adds two additional points. Cells contain and pass on hereditary information during cell division.
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Researchers have discovered several sources of stem cells: Embryonic stem cells. These stem cells come from embryos that are three to five days old. At this stage, an embryo is called a blastocyst and has about 150 cells.
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['All living things are made up of cells. ... ', 'Animal cells and plant cells share the common components of a nucleus, cytoplasm, mitochondria and a cell membrane.', 'Plant cells have three extra components, a vacuole, chloroplast and a cell wall.']
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However, there are some exceptions to the cell theory. Each exception violates rule number 2 of the basic cell theory that is explained above. ... The first cell did not come from another cell. Mitochondria and chloroplasts have their own genetic material and can reproduce independently from the cell in which they reside.
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["Nucleus. The nucleus can be thought of as the cell's headquarters. ... ", 'Plasma membrane. To ensure each cell remains separate from its neighbor, it is enveloped in a special membrane known as the plasma membrane. ... ', 'Cytoplasm. ... ', 'Lysosomes and peroxisomes. ... ', 'Cytoskeleton. ... ', 'Endoplasmic reticulum. ... ', 'Golgi apparatus. ... ', 'Mitochondria.']
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['Werner Arber (1929-). ... ', 'Karl Ernst von Baer (1792-1876). ... ', 'David Baltimore (1938-). ... ', 'George Beadle (1909-1975). ... ', 'Erwin Chargaff (1905-2002). ... ', 'Georges Cuvier (1769-1832). French naturalist and zoologist. ... ', 'Raymond Dart (1893-1988). Pioneering paleoanthropologist. ... ', 'Charles Darwin (1809-1882). English naturalist.']