Cell Division and Cancer (LC 2027) (Leaving Cert Biology): Flashcards
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What is cytokinesis?
What is cytokinesis?
Final stage of cell division; cytoplasm divides into 2 cells
When cytokinesis occurs
When cytokinesis occurs
Immediately after mitosis is complete
Genetic material received by daughter cells
Genetic material received by daughter cells
Same number of identical chromosomes as parent cell
Cellular components received by daughter cells
Cellular components received by daughter cells
Approximately half of organelles and biomolecules
Cytokinesis method in animal cells
Cytokinesis method in animal cells
Cleavage (using a cleavage furrow)
What is a cleavage furrow
What is a cleavage furrow
Shallow groove that forms around the cell's surface
Where cleavage furrow forms
Where cleavage furrow forms
At position of cell's equator during metaphase
Why plant cells can't form cleavage furrow
Why plant cells can't form cleavage furrow
Rigid cell walls prevent it
What vesicles contain in plant cytokinesis
What vesicles contain in plant cytokinesis
Cellulose (materials for new cell walls)
What structure do vesicles form in plant cytokinesis
What structure do vesicles form in plant cytokinesis
Cell plate
How cell plate functions
How cell plate functions
Grows outward, forms new cell walls on both sides
Animal cell cytokinesis mechanism
Animal cell cytokinesis mechanism
Cleavage furrow pinches cell membrane inward
Plant cell cytokinesis mechanism
Plant cell cytokinesis mechanism
Cell plate builds from centre outward
Difference: mitosis vs cytokinesis
Difference: mitosis vs cytokinesis
Mitosis: chromosome separation; cytokinesis: cell division
Timing of mitosis and cytokinesis
Timing of mitosis and cytokinesis
Sequential; cytokinesis begins as mitosis completes