Mitosis

What is the primary purpose of cellular division in multicellular organisms?

• To create entirely new organisms.

• To replace old or damaged cells and allow for growth.

• To produce energy for the organism.

• To secrete insulin and digest food.

What percentage of its life cycle does a cell typically spend in Interphase?

• 10%

• 25%

• 50%

• 90%

Which of the following activities occurs during the G1 phase of the cell cycle?

• DNA synthesis and replication.

• The cell makes new proteins and organelles, and grows in size.

• The cell's nucleus splits into two.

• The cell enters a non-dividing state.

What is the main event that characterizes the S phase of the cell cycle?

• The cell prepares for division by making more organelles.

• The cell performs its specialized functions, like secreting insulin.

• DNA synthesis, where the cell makes copies of its genetic information.

• The cell's cytoplasm divides into two daughter cells.

Which of the following represents the correct order of the main phases of the cell cycle?

• G1, S, G2, Mitosis, Cytokinesis

• S, G1, G2, Mitosis, Cytokinesis

• G1, G2, S, Mitosis, Cytokinesis

• Mitosis, Cytokinesis, G1, S, G2

How does cytokinesis in plant cells differ from that in animal cells?

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

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

• Both plant and animal cells form a cell plate.

• Both plant and animal cells form a cleavage furrow.

During which stage of mitosis do chromosomes align along the cell's equatorial plate?

• Prophase

• Metaphase

• Anaphase

• Telophase

What is the primary consequence of a breakdown in the cell cycle control system?

• Accelerated cell growth and differentiation.

• Uncontrolled cell division, potentially leading to diseases like cancer.

• Immediate cell death and tissue necrosis.

• Formation of specialized cells with unique functions.