Cell Division and Chromosomes Quiz

Why do multicellular organisms need a continuous supply of new cells?

• For energy production

• To increase their lifespan

• For growth, development, and repair

• To maintain their size

What are the three main stages of the cell cycle?

• Growth, DNA replication, and cytokinesis

• Growth, DNA replication, and mitosis

• Mitosis, cytokinesis, and repair

• DNA replication, repair, and growth

What happens to DNA when a cell prepares for division?

• It remains in long strings

• It dissolves in the cytoplasm

• It condenses into chromosomes

• It forms a double helix

How many pairs of chromosomes do humans have?

• 23 pairs

• 46 pairs

• 24 pairs

• 12 pairs

What shape do chromosomes form when they duplicate?

• A spiral

• An X shape

• A straight line

• A circle

What is the role of cell fibers during cell division?

• They repair damaged DNA

• They attach to chromosomes and pull them apart

• They provide energy for the cell

• They store genetic information

What is the final stage of the cell cycle called?

• Growth

• DNA replication

• Cytokinesis

• Mitosis

What is the result of cytokinesis?

• Four different cells

• Two identical daughter cells

• One larger cell

• No change in the cell

What ensures that each daughter cell has the same DNA?

• The cytoplasm

• The mitochondria

• The cell membrane

• The duplication of chromosomes

What can the resulting daughter cells contribute to?

• Nutrient absorption

• Waste removal

• Energy production

• Growth, development, or repair