Mitosis and the Cell Cycle

What is the primary role of cells in a multicellular organism?

• To act as independent organisms.

• To perform specialized functions and contribute to the organism's overall life processes.

• To store all of the organism's genetic information without using it.

• To only divide and replace damaged tissues.

What is the general pattern that cells follow throughout their life, including growth, development, and division?

• Genetic blueprint

• Metabolic pathway

• Cell cycle

• Organismal development

In multicellular organisms, what are the main reasons for cellular division?

• To create entirely new organisms.

• To replace old or damaged cells and allow the body to grow.

• To produce energy for the organism.

• To store genetic information.

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

• Skin cells and digestive tract cells.

• Liver cells and pancreas cells.

• Neuron and muscle cells.

• Blood cells and bone cells.

What is the primary activity of cells during interphase?

• Rapid division into new cells.

• Performing their specialized functions and preparing for division.

• Remaining dormant and inactive.

• Forming new tissues and organs.

What significant events occur during the G1 phase of the cell cycle?

• DNA synthesis and chromosome formation.

• Intense growth, production of new proteins and organelles.

• Organization of cellular components for division.

• Splitting of the nucleus and cytoplasm.

What is the main process that takes place during the S phase of the cell cycle?

• Cell growth and organelle duplication.

• DNA synthesis, where genetic information is copied.

• Final preparations for cell division.

• Separation of sister chromatids.

What is the primary goal of mitosis?

• To synthesize new DNA.

• To grow the cell to its maximum size.

• To split the cell's nucleus and distribute copied chromosomes to opposite ends.

• To organize centrosomes for future division.

How does cytokinesis differ between animal and plant cells?

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

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

• Both animal and plant cells form a cell plate.

• Both animal and plant cells pinch inward.

Which of the following events characterizes prophase during mitosis?

• Chromosomes align at the metaphase plate.

• Sister chromatids separate and move to opposite poles.

• DNA condenses into visible chromosomes, and the mitotic spindle begins to form.

• New nuclear envelopes form around the separated chromosomes.