How living things grow
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Created by:
GraceMastronardi on April 17, 2011
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38 terms
Terms | Definitions |
|---|---|
 cells are | the smallest building block of life |
| all living things are made up of | cells |
| all cells come from | cells that already exist |
| we start as one cell and as adults we have | more then ten trillion cells |
| when we get injured our cells | divide to repair the injured area |
| do some cells divide at a faster rate then other types of cells | yes |
| The nucleus is the | brain of the cell |
| the nucleus has a ______ surounding it | membrane |
| the nucleus contains ______ inside of it | chromosomes |
| chromosomes are | DNA packaged with protiens |
| chromosomes are made of | DNA |
| DNA is the directions for | who we are and how we work |
| each cell must contain the _____ set of DNA | correct/full |
| mitosis is the scientific name for | cell divison |
| one cell ______ in size | doubles |
| all of the cells _______ and_______ are doubled | organelles and chromosomes |
| in mitosis the cell divides in half creating | two identical cells that are exactly the same as the original cell |
| mitosis only occurs _____ of the time | 10% |
| Interphase is when | the cell is not divideing |
| during interphase the cell is | resting and preparing for mitosis |
| interphase is when the cells doubles its | DNA |
| Mitosis occurs in ___ sages | four |
| The four stages of mitosis are | Prophase, metaphase, anaphase and telaphase |
| mitosis is a gradual process in wich | one cell becomes two |
| chromosomes double during | interphase |
| chromosomes are like | twin sisters |
| chromosomes are attached to the | hip |
| chromosomes become visible under a light microscope because | they are condensing |
| ______ move from opposite sides of the cell and the spindle fiber being to form from the _____ | Centrioles and centrioles |
| During prophase the nuclear | membrane breaks apart |
| Durring prophase the spindle starts to | interact with chromosomes |
| the spindle spans the entire cell during | prophase |
| During metaphase the chromosomes completely attach to the | spindle |
| during _______ the chromosomes line up in the middle on an imaginary line called the _____________ | meteaphase and metaphase plate |
| the spindle breaks apart during | telophase |
| during telophase the chromosomes | begin to uncoil |
| cytokinesis is during | anaphase and telophase |
| cell division is | how cells make more cells when you are growing or replacing old cells |
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