Cytokinesis in Cells

What is cytokinesis?

• Cytokinesis is the division of the cytoplasm during cell division.

• Cytokinesis is the synthesis of DNA during cell division.

• Cytokinesis is the process of cell signaling between cells.

• Cytokinesis is the replication of organelles before cell division.

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How does cytokinesis differ in animal and plant cells?

• Cytokinesis is identical in both animal and plant cells.

• Plant cells use a cleavage furrow, while animal cells form a cell plate.

• Cytokinesis differs in that animal cells use a cleavage furrow, while plant cells form a cell plate.

• Both cell types form a cleavage furrow.

What structure forms during cytokinesis in animal cells?

• Contractile ring

• Centrosome

• Cell plate

• Spindle apparatus

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What is the role of the cell plate in plant cell cytokinesis?

• The cell plate forms a new cell wall between the two daughter cells during plant cell cytokinesis.

• The cell plate initiates DNA replication in daughter cells.

• The cell plate transports nutrients to the daughter cells.

• The cell plate acts as a barrier to prevent cell fusion.

Describe the process of cleavage furrow formation in animal cells.

• Cleavage furrow formation involves the contraction of an actin-myosin ring, creating a groove that deepens until the cell is pinched into two daughter cells.

• Separation of chromosomes during anaphase

• Formation of a cell wall in plant cells

• Duplication of DNA during mitosis

How do plant cells ensure that they do not burst during cytokinesis?

• Plant cells absorb excess water to prevent bursting during cytokinesis.

• Plant cells form a cell plate during cytokinesis to prevent bursting.

• Plant cells dissolve their cell walls during cytokinesis.

• Plant cells use a contractile ring to separate during cytokinesis.

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What are the main differences in timing of cytokinesis between animal and plant cells?

• Animal cells form a cell plate while plant cells use cleavage furrows.

• Both cell types form a cleavage furrow during cytokinesis.

• Plant cells undergo cytokinesis by pinching inwards like animal cells.

• Animal cells undergo cytokinesis through cleavage furrow formation, while plant cells form a cell plate.

Why is cytokinesis important for cell division?

• Cytokinesis helps in the synthesis of proteins.

• Cytokinesis is important for DNA replication.

• Cytokinesis is responsible for energy production in cells.

• Cytokinesis is important because it physically separates the daughter cells, ensuring they can function independently.

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What proteins are involved in the cytokinesis process in animal cells?

• Collagen and elastin

• Hemoglobin and albumin

• Actin and myosin

• Tubulin and kinesin

How does the rigidity of the plant cell wall affect cytokinesis?

• Cytokinesis in plant cells occurs through the dissolution of the cell wall.

• The rigidity of the plant cell wall necessitates the formation of a cell plate instead of a cleavage furrow during cytokinesis.

• Plant cell walls do not influence the process of cytokinesis at all.

• The rigidity of the plant cell wall allows for a cleavage furrow to form during cytokinesis.