Cell Cycle and Mitosis Quiz

Cell Cycle

• The cell cycle is a series of events that a cell goes through as it grows and divides.
• It consists of interphase and the mitotic phase.

Interphase

• Interphase is the longest part of the cell cycle.
• It is divided into three phases: G1, S, and G2.
• During G1 (gap 1), the cell increases in size and synthesizes proteins.
• During S (synthesis), DNA replication occurs, creating two identical sets of chromosomes.
• During G2 (gap 2), the cell continues to grow and prepares for division.

Mitotic Phase

• The mitotic phase is the division phase of the cell cycle.
• It includes mitosis and cytokinesis.
• Mitosis is the division of the nucleus and its contents.
• Cytokinesis is the division of the cytoplasm.
• Mitosis has four stages: prophase, metaphase, anaphase, and telophase.

Mitosis Stages

• Prophase: Chromosomes condense and become visible, the nuclear envelope breaks down, and the spindle apparatus forms.
• Metaphase: Chromosomes align at the metaphase plate, which is the middle of the cell.
• Anaphase: Sister chromatids separate and move to opposite poles of the cell.
• Telophase: Chromosomes decondense, the nuclear envelope reforms, and the spindle apparatus disappears.

Cytokinesis

• Cytokinesis is the division of the cytoplasm.
• In animal cells, a cleavage furrow forms and pinches the cell in two.
• In plant cells, a cell plate forms and grows to separate the two daughter cells.

Meiosis

• Meiosis is a type of cell division in which a single cell divides twice to produce four daughter cells.
• These four daughter cells contain half the number of chromosomes of the original cell.
• Meiosis is important for sexual reproduction.

Test your knowledge on the cell cycle and its phases, including interphase and the mitotic phase. This quiz covers key concepts such as G1, S, G2, and the stages of mitosis, ensuring a thorough understanding of cell division. Challenge yourself and see how well you know the processes that govern cell growth and replication.