Chapter 10 Study Guide Cell Growth and Division

cell division
process by which a cell divides into two new daughter cells

interphase
period of the cell cycle between cell divisions

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

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

chromosome
threadlike structure within the nucleus containing the genetic information that is passed from one generation of cells to the next

sister chromatids
Replicated forms of a chromosome joined together by the centromere and eventually separated during mitosis or meiosis II.

centromere
area where the chromatids of a chromosome are attached

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

spindle
fanlike microtubule structure that helps separate the chromosomes during mitosis

cell plate
A double membrane across the midline of a dividing plant cell, between which the new cell wall forms during cytokinesis.

binary fission
type of asexual reproduction in which an organism replicates its DNA and divides in half, producing two identical daughter cells