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Unit 4 Biology 9th

Mitosis

TermDefinition
Stages of Mitosis IPMATC Interphase, Prophase, Metaphase, Anaphase, Telophase, Cytokinesis
Humans have __ Chromosomes and __ Pairs 46 Chromosomes aka 23 pairs
Mitosis The process where the nucleus is divided into two nuclei
Eukaryotic Cells Cells that ahve a membrane-bound nucleus Includes: Animal cells, plant cells, fungi cells, and many other unicellualr organisms)
Prokaryotic Cells Cells with no nucleus Includes: single-celled organisms, bacteria
Binary Fission Asexual Reproduction in Prokaryotes
In Mitosis 1 cell creates __ cells 1 cell creates 2 cells
Longest stage of the Cell Cycle Interphase (the 'daily living' or metabolic phase of the cell, in which the cell obtains nutrients and metabolizes them, grows, replicates its DNA in preparation for mitosis, and conducts other "normal" cell functions.) BEFORE mitosis
Why do cells divide? - They become too big to process and transport nutrients - For the organism to grow -Surface area-to-volume ratio becomes too large
More frequently used cells will __ divide more often Metaphor: front wheels of a front-wheel drive car need to be replaced more often due to wear and Tear
Mitosis in plant cells is different than in animal cells because IMAGE: cells form Cell Plates before the Cell Wall
Chromosomes are made of ___ DNA
a Chromatid is Each of the two thread-like strands of double helix of DNA
Sister Chromatids Joined strands og duplicated genetic material
Centromere the region of a chromosome where two sister chromatids are held together
Cleavage Furrow the pinching of the cytoplasm into two lobes (occurs in Anaphase and telophase)
ChromatiN a COMPLEX of DNA and protein found in EUKARYOTES
Spindle Fibers A protein structure that divides genetic material
Protein Synthesis The process of creating protein molecules
Somatic Cells Any cell in a living organism other than reproductive cells (Somatic cells are body cells)
Created by: mylee2
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