Cell Cycle and Mitosis Concepts

The video tutorial explains the cell cycle, starting from cell division and focusing on the phases: G1 (growth), S (DNA synthesis), G2 (preparation for division), and M (mitosis and cytokinesis). It highlights the differences between mitosis in eukaryotic cells and binary fission in prokaryotic cells, emphasizing the complexity of eukaryotic cell division due to multiple chromosomes and the need for precision to avoid mutations.

What is the primary focus of the cell cycle?

• The production of energy

• The death of old cells

• The transition from parent cell to daughter cells

• The growth of the organism

During the G1 phase, what is the main activity of the cell?

• Undergoing mitosis

• Synthesizing DNA

• Growing in size

• Preparing for immediate division

What happens to cells that enter the G0 phase?

• They prepare for division

• They stop dividing

• They immediately undergo mitosis

• They synthesize DNA

What critical process occurs during the S phase?

• Cell growth

• DNA synthesis

• Nuclear division

• Cytokinesis

What is the main purpose of the G2 phase?

• To divide the cell

• To prepare for mitosis

• To synthesize DNA

• To enter the G0 phase

What is the primary focus of the M phase?

• DNA synthesis

• Cell growth

• Energy production

• Cell division

What is the role of mitosis in the cell cycle?

• To enter the G0 phase

• To grow the cell

• To divide the nucleus

• To synthesize DNA

How does cytokinesis differ from mitosis?

• It divides the cytoplasm

• It involves DNA synthesis

• It occurs before mitosis

• It is part of the G1 phase

What is a key difference between mitosis and binary fission?

• Binary fission requires DNA synthesis

• Mitosis involves spindle fibers

• Binary fission is more complex

• Mitosis occurs in prokaryotes

Why do eukaryotic cells require spindle fibers during mitosis?

• To enter the G0 phase

• To synthesize DNA

• To grow the cell

• To ensure accurate chromosome separation