Ch. 5 Terms Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Term | Definition |
cell cycle | the life cycle of a cell |
mitosis | in eukaryotic cells, a process of cell division that forms two new nuclei, each of which has the same number of chromosomes |
cytokinesis | the division of the cytoplasm of a cell; follows the division of the cell's nucleus by mitosis |
chromosome | in a eukaryotic one of the structures in the nucleus that are made up of DNA and protein; in prokaryotic the main ring of DNA |
histone | a type of protein molecule found in the chromosomes of eukaryotic cells |
chromatin | the substance that composes eukaryotic chromosomes; consists of DNA and RNA |
chromatid | one of the two strands of a chromosome that become visible during mitosis |
centromere | the region of the chromosome that holds the two sister chromatids together during mitosis |
telomere | the region at the tip of a chromosome; a region of repeating DNA sequences |
prophase | 1st phase of mitosis when chromatin condenses, the nuclear envelope breaks down, the nucleolus disappears, and the centrosomes and centrioles migrate to opposite sides of the cell |
metaphase | 2nd phase of mitosis when spindle fibers align the chromosomes along the cell equator |
anaphase | 3rd phase of mitosis during which chromatids separate and are pulled to opposite sides if the cell |
telophase | 4th phase of mitosis when a complete set of identical chromosomes is positioned at each pole of the cell, the nuclear membranes start to form, the chromosomes begin to uncoil, and the spindle fibers disassemble |
growth factor | programmed cell death |
apoptosis | a type of disorder of cell growth that results in invasion and destruction of surrounding healthy tissue by abnormal cells |
cancer | a type of disorder of cell growth that results in invasion and destruction of surrounding healthy tissue by abnormal cells |
benign | having no dangerous effect on health, especially referring to an abnormal growth of cells that are not cancerous |
malignant | cancerous tumor in which cells break away and spread to other parts of the body, causing harm to the organism's health |
metastasize | to spread by transferring a disease-causing agent from the site of the disease to other parts of the body |
carcinogen | substance that produces or promotes the development of cancer |
asexual reproduction | reproduction that does not involve the union of gametes and in which a single parent produces offspring that are genetically identical to the parent |
binary fission | a form of asexual reproduction in single-celled organisms by which one cell divides into two cells of the same size |
tissue | a group of similar cells that perform a common function |
organ | a collection of tissues that carry out a specialized function of the body |
organ system | two or more organs that work in a coordinated way to carry out similar |
cell differentiation | the process by which a cell becomes specialized for a specific structure or function during multicellular development |
stem cell | cell that can divide for long periods of time while remaining undifferentiated |
Created by:
EliseD
Popular Biology sets