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number of cells that die every 24 hours |
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Definition
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Definition
-G1, S, G2 -non dividing stage of cell cycle -cell is involved in DNA replication and growth |
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Definition
-normal cellular activities -cell growth and duplication of organelles -protein synthesis |
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Definition
-DNA replication -where mutations occur |
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Definition
protein synthesis, microtubules, etc. |
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Definition
-nuclear division -cytokinesis-cytoplasmic division |
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Term
possible fates of daughter cells |
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Definition
-enter a new cell cycle immediately -rest as an uncommitted cell -differentiate (specialize), age or die (sometimes lose ability to divide) |
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Term
cells which are extremely specialized and have lost their ability to divide |
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Definition
RBCs, neuron, muscle cell |
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Term
cells that normally do not divide but can be induced to do so by appropriate stimulus |
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Definition
liver cells, lymphocytes (WBCs) |
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cells which continuously undergo cell division |
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Definition
-skin, cells of intestinal lining, bone marrow cells |
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Definition
dark staining threadlike body in the nucleus containing genetic information |
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Definition
-hereditary unit or source of information for synthesis -segment of DNA on chromosome |
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Definition
number and type of chromosomes an individual has |
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Definition
cylindrical structure, composed of microtubules that serves as an organizing center for mitotic spindle |
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cells vulnerable to DNA damage |
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cells vulnerable to DNA damage |
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Definition
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Definition
-nuclear membrane disappears -chromosomes become condensed |
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Definition
-paired chromosomes (or chromatids) line up along equator |
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Definition
-chromosomes separate and migrate to opposite sides of cell |
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Definition
-nucleus divides into two units which have the same composition of DNA |
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Definition
daughter cells enter phases of the cell cycle and may immediately divide again, "rest" or remain permanently in interphase |
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Definition
4 daughter cell which contain 1/2 of DNA or number of chromosomes of parent cell (23 chromosomes) |
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Definition
increase in size of cells |
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increase in mitotic activity (number of cells) |
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decrease in size due to lack of use |
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changes in cell in response to disease or chronic irritation which results in the transformation of the cell into different cell type |
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Definition
-new cell mass -rapid multiplication -benign vs. malignant |
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