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Briefly please i am having troubles understanding this

2007-10-25 15:54:19 · 3 answers · asked by BioNeedHelpe~! 1 in Science & Mathematics Biology

3 answers

The cell theory says:
1. All living things are made of cells. This means that all plants, animals, fungi, protists, and bacteria are made of cells.
2. The cell is the basic unit of living things. This means that if you pick apart a living thing, the smallest part of that organism that is considered to be alive is the cell. If you just take a piece of the cell, like the nucleus or a chloroplast, that piece is not alive. The smallest living piece of a living thing is a cell.
3. Cells are made by other living cells. This means that cells don't just spring up from pond water or from mixing up some chemicals in a lab. Cells are only made by other cells dividing.

2007-10-25 16:00:46 · answer #1 · answered by ecolink 7 · 0 0

The idea of Cell Theory has changed with time.. initially there where three statements that many of the basic bio books have

1. All living things are made of cells or cells are the basic unit of life..
2. The cell is responsible for all the functions of life.
3. All cells come from pre-existing cells.

What this means is that simply all things that are living organisms are made from cellular subunit which are responsible for all the basic characteristic of life.. in other word the cell does the job of living. These cells just don't come from themselves but come from previous cells which pass on the information to the next generation.

2007-10-25 16:03:35 · answer #2 · answered by Ort B 3 · 0 0

formula of the cellular theory In 1838, Theodor Schwann and Matthias Schleiden were taking area in after-dinner espresso and speaking about their study on cells. it really is been stated that once Schwann heard Schleiden describe plant cells with nuclei, he change into struck by the similarity of those plant cells to cells he had said in animal tissues. both scientists went in the hot day to Schwann's lab to seem at his slides. Schwann revealed his e book on animal and plant cells (Schwann 1839) the subsequent year, a treatise without acknowledgments of everybody else's contribution, which include that of Schleiden (1838). He summarized his observations into 3 conclusions about cells: a million) The cellular is the unit of structure, body structure, and employer in residing issues. 2) The cellular keeps a twin existence as a distinct entity and a construction block contained in the kind of organisms. 3) Cells type by loose-cellular formation, such as the formation of crystals (spontaneous era). all of us understand at present that the first 2 tenets are spectacular, although the 0.33 is clearly incorrect. the great interpretation of cellular formation by branch change into finally promoted by others and formally enunciated in Rudolph Virchow's powerful dictum, "Omnis cellula e cellula"... "All cells in simple terms upward thrust up from pre-latest cells". the sought after tenets of the cellular theory comprise: a million. all straightforward residing issues are made from cells. 2. the cellular is structural & smart unit of all residing issues. 3. all cells come from pre-latest cells by branch. (Spontaneous era does no longer take position). 4. cells includes hereditary advice it truly is exceeded from cellular to cellular throughout cellular branch. 5. All cells are in reality an similar in chemical composition. 6. all skill move (metabolism & biochemistry) of existence takes position interior of cells.

2016-10-23 00:18:09 · answer #3 · answered by ? 4 · 0 0

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