Claymation+Vocabulary+List

Vocabulary List for Students

 * mitosis: ** part of eukaryotic cell division during which the cell nucleus divides **

nucleus: ** in cells, structure that contains the cell's genetic material (DNA) and controls the cell's activities **

nuclear envelope: ** layer of two membranes that surrounds the nucleus of a cell **

plasma membrane: **the principal outer membrane of the cell which encloses the cytoplasm **

interphase: ** period of the cell cycle between cell divisions **

prophase: ** first and longest phase of mitosis, during which the chromosomes become visible and the centrioles separate and take up positions on the opposite sides of the nucleus **

metaphase: ** second phase of mitosis, during which the chromosomes line up across the center of the cell **

anaphase: ** the third phase of mitosis, during which the chromosome pairs separate and move toward opposite poles **

telophase: ** fourth and final phase of mitosis, during which the chromosomes begin to disperse into a tangle of dense material **

cytokinesis: ** division of the cytoplasm during cell division **

chromosome: ** thread-like structure within the nucleus containing the genetic information that is passed from one generation of cells to the next **

sister chromatids: ** identical parts of a duplicated chromosomes **

chromatin: ** granular material visible within the nucleus; consists of DNA tightly coiled around proteins **

centriole: ** one of two tiny structures located in the cytoplasm of animal cells near the nuclear envelope **

spindle fibers: ** fanlike microtubule structures that help separate the chromosomes during mitosis **

centromere: ** area where the chromatids of chromosomes are attached **

All definitions obtained from Biology by Prentice Hall 2006 ||