Mitosis & the Cell Cycle: How Cells Clone Themselves: Crash Course Biology #29

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

• To create entirely new organisms

• To replace old or damaged cells and allow for growth

• To produce energy for the body

• To store genetic information

Which types of cells in an adult human typically do not divide?

• Skin cells

• Digestive tract cells

• Muscle cells and neurons

• Pancreas cells

What do cells primarily do during Interphase, the longest period of the cell cycle?

• They divide into two new cells

• They perform their normal functions and prepare for division

• They remain dormant and inactive

• They only synthesize DNA

Which phase of Interphase is characterized by the cell making copies of all its genetic information?

• G1 phase

• G2 phase

• S phase

• M phase

How does cytokinesis differ between animal and plant cells?

• Animal cells form a cell wall, while plant cells pinch inward.

• Plant cells form a cell wall, while animal cells pinch inward.

• Both animal and plant cells form a cell wall.

• Both animal and plant cells pinch inward.

What happens to the chromosomes during metaphase?

• They condense and become visible.

• They line up in the middle of the cell.

• They move to opposite ends of the cell.

• New nuclear membranes form around them.

What is the correct order of the phases of mitosis?

• Metaphase, Prophase, Anaphase, Telophase

• Prophase, Metaphase, Anaphase, Telophase

• Anaphase, Telophase, Prophase, Metaphase

• Telophase, Anaphase, Metaphase, Prophase

What causes cancer cells to grow and divide uncontrollably?

• The cell cycle control system works too well.

• The cell cycle control system breaks down.

• Cells stop growing and dividing.

• Proteins signal cells to divide only when needed.