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10th Biology 8.2
Jorge 10th BIOLOGY 8.2 CHAPTER 8 PASSIVE TRANSPORT VOCABULARY
| Question | Answer |
|---|---|
| CHROMOSOME | DNA in the nucleus of the cell; contains all of the directions that a cell needs to survive for most of a cell’s life, chromosomes exist as chromatin |
| CHROMATIN | chromatin: long strands of DNA wrapped around proteins |
| CELL CYCLE | The Cell Cycle: sequence of growth and division of a cell |
| INTERPHASE | G1 phase: cell grows S phase: Chromosomes copy themselves and form sister chromatids (so that each new cell will have all the chromosomes the original cell had) G2 phase: cell grows mitosis, or cell division, occurs |
| MITOSIS | cell division that produces 2 daughter cells that are identical to the original cell |
| PROPHASE | Nuclear membrane falls apart chromasomes condense centrioles move to opposite sides of the cell and start to form spindle fibers |
| SISTER CHROMATIDS | daughter cells that are identical to the original cell1 |
| CENTROMERE | the region of a chromosome to which the microtubules of the spindle attach, via the kinetochore, during cell division. |
| CENTRIOLE | a minute cylindrical organelle near the nucleus in animal cells, occurring in pairs and involved in the development of spindle fibers in cell division. |
| SPINDLE | slender mass of microtubules formed when a cell divides. At metaphase, the chromosomes become attached to it by their centromeres before being pulled toward its ends. |
| METAPHASE | the second stage of cell division, between prophase and anaphase, during which the chromosomes become attached to the spindle fibers. |
| TELOPHASE | Telophase:chromosomes decondense spindle fibers break down new nuclear membrane forms around each set of chromosomes |
| CYTOKINESIS | Cytokinesis: cytoplasm divides, forming 2 new cells |
| TISSUE | Mitosis is used to create multicellular organisms Cell --> Tissue --> Organ --> Organ system --> Organism Example:muscle cell --> muscle tissue --> stomach --> digestive system --> animal |
| ORGAN | multicellular organism |
| ORGAN SYSTEM | Example:muscle cell --> muscle tissue --> stomach --> digestive system --> animal |
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