Cell Division Overview and Mitosis

Questions and Answers

What is the primary reason for cells to divide?

To decrease cell size

To increase complexity

For growth, repair, and reproduction (correct)

To reduce energy consumption

What occurs during cytokinesis?

Actual division of the cell into two new cells (correct)

Formation of sister chromatids

Division of the nucleus

Replication of DNA

What occurs during the S phase of interphase?

Cell recovery from previous division

DNA replication (correct)

Preparation for cytokinesis

Growth of organelles

What is the longest part of the cell cycle?

Interphase Signup and view all the answers

Which phase of interphase is characterized by cell growth and recovery after division?

G1 phase Signup and view all the answers

What happens to organelles during the G2 phase?

They are replicated Signup and view all the answers

What is the function of sister chromatids?

To act as identical structures resulting from chromosome replication Signup and view all the answers

When does mitosis begin in relation to the cell cycle?

After the G2 phase Signup and view all the answers

Study Notes

Cell Division Overview

Cells divide for growth, repair, and reproduction.
Cytokinesis is the process of physically dividing a cell into two new cells.
Mitosis refers to the division of a cell's nucleus into two new nuclei.

Key Terms

Chromatin is a thin, fibrous form of DNA and proteins.
Sister chromatids are identical structures produced from chromosome replication during the S phase.

Cell Cycle Components

The cell cycle consists of two main parts: interphase and cell division.
Interphase involves growth and preparation for mitosis.
Cell division includes mitosis (nuclear division) followed by cytokinesis (cytoplasm division).

Interphase Stages

G1 Phase (Gap 1): The cell recovers from mitosis after completing division.
S Phase (Synthesis): DNA replication occurs, doubling the genetic material.
G2 Phase (Gap 2): Prepares the cell for mitosis, replicating organelles and allowing further growth.

Mitosis Characteristics

Mitosis begins after the G2 phase and concludes before the G1 phase.
It involves a series of steps that ensure the proper distribution of chromosomes into daughter cells.

Additional Notes

Interphase is the longest part of the cell cycle and includes three distinct phases: G1, S, and G2.
Proper understanding of the cell cycle is crucial for insights into growth and repair processes in living organisms.

Description

Explore the fascinating process of cell division, including the stages of mitosis and cytokinesis. Understand the key terms like chromatin and sister chromatids, along with the various phases of the cell cycle such as G1, S, and G2. This quiz will enhance your knowledge of how cells grow, repair, and reproduce.