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7 CK CELL DIVISION
7th CK SCIENCE Cells & Cell Division - COMPLETE
| Term | Definition |
|---|---|
| Anaphase | the third phase of mitosis |
| Cell | smallest functional unit of life; the building blocks of life: the tiny units of living things that make up tissues |
| Cell Cycle | period from the beginning of one cell division to the beginning of the next |
| Cell membrane | permeable lipid bilayer composing outer layer of a cell |
| Centrioles | organelles that organize the spindle and pull chromosomes apart |
| Centromeres | the point of attachment between copies of chromosomes |
| Chromatids | the individual copies of a chromosome |
| Chromosome | DNA molecules twisted into a small rod shape- the genetic material of the cell |
| Cytoplasm | jelly like material that fills cells |
| DNA | Deoxyribonucleic acid-the chemical that makes up genetic material contains genes |
| Endoplasmic Reticulum | network of tubes that transport proteins |
| Histone | any of a group of 5 basic proteins occurring in the nucleus of eukaryotic cells |
| Interphase | the time period between cell division, cell spends most of its time during this phase of the cell cycle |
| Lysate | a mixture of substances formed by the destruction of cells |
| Meiosis | cell division in which the resulting daughter cells contain half of the genetic information from the original |
| Metaphase | the second and shortest phase of mitosis |
| Mitochondria | cell organelle that makes energy |
| Mitosis | cell process in which the nucleus divides to form two nuclei identical to each other, and identical to the original nucleus, in a series of steps (prophase, metaphase, anaphase, and telophase); the resulting daughter cells are nearly identical to the orig |
| Nucleolus | sub organelle of the nucleus made of DNA sequences (makes RNA) |
| Nucleus | membrane-bound organelle containing cells’ chromosomes |
| organelle | structure of a cell having specialized functions |
| Poles | the opposite sides of the cell |
| Prophase | the first and longest phase of mitosis |
| Replication | copying of chromosomes; (making a copy of) |
| Somatic cell | “normal” cell - body cells not involved in reproduction |
| Spindle | fibers that are used to pull chromosomes apart, organized by the centrioles |
| Synthesis | to makking new object out of parts |
| Telophase | the fourth and last phase of mitosis |
| Vacuole | organelle that can secrete waste products and store water |
| Prokaryote (prokaryotic cell) | a cell lacking a true membrane-bound nucleus |
| Eukaryote (eukaryotic cell) | a cell with a true nucleus; a cell with a nuclear membrane and organelles |
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artisteacher
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