Bio mitosis flashcards

27 terms by saraleach 

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anaphase

the stage in mitosis in which individual chromosomes, after being separated from double chromosomes, move to opposite sides of the cell

bacterium

a one-celled microorganism that contains no nucleus

cell cycle

the sequence of growth and division that dividing cells go through

cell plate

structure formed in cytokinesis that divides the cytoplasm of a plant cell in half

centrioles

cylindrical strutures in animal cells from which the spindle extends from in mitosis

centromere

the structure that is the point of attachment for two chromatids in a double chromosome

chromatid

a single chromosome that is part of a double chromosome

chromosomes

structures composed of a very long strand of DNA that has been tightly compacted

chromosome set

a group of chromosomes that exist together within the nucelus of a eukaryote

cytokinesis

stage following mitosis in which the cytoplasm of a cell divides into two equal portions

cytoplasm

area within a cell between the nucleus and outer cell membrane

DNA deoxyribonucleic acid

large molecules that carry the genetic information necessary for all cellular functions

equator

midplane of the cell

eukaryotic cell

cell that has a true nucleus surrounded by a membrane

genes

segments of DNA that carry information and give directions for everthing the cell is and will be

interphase

period in the cell cycle when the cell grows, produces more cell structures, and doubles its chromosome set

metaphase

the second stage in mitosis in which the doubled chromosomes line up along the cell's equator and are split into single chromosomes

microtubules

fiber-like structures that extend from opposite sides of the cell in mitosis; form the spindle

mitosis

the separation of doubled chromosomes and the division of the nucleus into two nuclei that is necessary for cell division to occur in eukaryotic cells

nuclear envelope

a membrane that surrounds the nucleus in a eukaryotic cell

nuclei

plural form of nucleus

nucleolus

a dark structure seen within the nucleus

nucleus

membrane bound structure; found in eukaryotes that contains the genetic material for the cell

prokaryotic cell

a cell that doesn't have a membrane bound nucleus

prophase

first and longest stage of mitosis

telophase

the last stage in mitosis

spindle

football-shaped structure formed from microtubules during prophase

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