Multiple Choice
In a typical animal cell undergoing mitosis followed by cytokinesis, how many daughter cells are produced from one original parent cell?
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16. Cell Division
Cytokinesis
Multiple Choice
In the context of cytokinesis, how does mitosis-related cell division differ between typical animal and plant cells?
A
Animal cells complete cytokinesis by separating daughter nuclei without cytoplasmic division, whereas plant cells complete cytokinesis by rupturing the plasma membrane.
B
Animal cells form a cell plate during cytokinesis, whereas plant cells divide by a cleavage furrow driven by an actin-myosin contractile ring.
C
Animal cells and plant cells both rely primarily on the same cleavage furrow mechanism because both lack a rigid extracellular structure during cytokinesis.
D
Animal cells usually complete cytokinesis by forming a contractile ring that creates a cleavage furrow, whereas plant cells build a cell plate that becomes the new cell wall between daughter cells.
Verified step by step guidance1
Step 1: Understand that cytokinesis is the process during cell division where the cytoplasm divides to form two separate daughter cells after mitosis.
Step 2: Recognize that animal cells and plant cells have different structural features that influence how cytokinesis occurs; animal cells lack a rigid cell wall, while plant cells have a rigid cell wall.
Step 3: In animal cells, cytokinesis is achieved by the formation of a contractile ring composed of actin and myosin filaments beneath the plasma membrane, which constricts to form a cleavage furrow that pinches the cell into two.
Step 4: In plant cells, the rigid cell wall prevents constriction by a contractile ring, so instead, vesicles derived from the Golgi apparatus coalesce at the center of the cell to form a cell plate, which gradually develops into a new cell wall separating the daughter cells.
Step 5: Summarize that the key difference is that animal cells use a cleavage furrow driven by a contractile ring for cytokinesis, while plant cells build a cell plate that becomes the new dividing wall.
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