Cell Cycle and Mitosis Overview
24 Questions
8 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

During which phase of mitosis do sister chromatids separate and move toward opposite poles of the cell?

  • Prophase
  • Telophase
  • Anaphase (correct)
  • Metaphase
  • In interphase, the chromosomes are clearly visible under a microscope.

    False

    What is the name of the structure that forms in the cell during cytokinesis?

    cell plate

    The phase where the nucleolus begins to fade from view is called __________.

    <p>Prophase</p> Signup and view all the answers

    Match the phase of the cell cycle to its corresponding description:

    <p>Prophase = Chromosomes condense and become visible Metaphase = Chromosomes align at the cell's equator Anaphase = Sister chromatids are pulled apart Telophase = Nuclear membranes reform around each set of chromosomes</p> Signup and view all the answers

    What happens during telophase?

    <p>New nuclear membranes form around each set of chromosomes.</p> Signup and view all the answers

    During metaphase, the chromosomes are located at the equator of the cell.

    <p>True</p> Signup and view all the answers

    The structure that connects two chromatids is called the __________.

    <p>centromere</p> Signup and view all the answers

    Which phase of the cell cycle is characterized by a non-dividing cell?

    <p>Interphase</p> Signup and view all the answers

    Mitosis allows for the growth and repair of tissues by producing identical daughter cells.

    <p>True</p> Signup and view all the answers

    What structure is formed when protein fibers radiate from centrioles?

    <p>Spindle fibers</p> Signup and view all the answers

    What phase of the cell cycle involves DNA replication?

    <p>S Phase</p> Signup and view all the answers

    The longest phase of the cell cycle is ______.

    <p>Interphase</p> Signup and view all the answers

    Cytokinesis occurs during the Metaphase of the cell cycle.

    <p>False</p> Signup and view all the answers

    Match the mitotic phase with its correct description:

    <p>Prophase = Chromosomes condense and become visible Metaphase = Chromosomes align at the cell's equatorial plane Anaphase = Sister chromatids are pulled apart Telophase = Nuclear membranes start to reform</p> Signup and view all the answers

    What term describes the diffusion of water molecules through a selectively permeable membrane?

    <p>Osmosis</p> Signup and view all the answers

    The _______ phase is the longest part of the cell cycle, consisting of G1, S, and G2.

    <p>Interphase</p> Signup and view all the answers

    If an individual has faulty spindle fibers, what might happen?

    <p>Chromosomes will not separate properly</p> Signup and view all the answers

    Match the following terms with their definitions:

    <p>Diffusion = Movement of particles from high to low concentration Osmosis = Diffusion of water through a selectively permeable membrane Isotonic solution = Equal concentrations of solute inside and outside the cell Hypertonic solution = Higher concentration of solute outside the cell</p> Signup and view all the answers

    Skipping cytokinesis would result in a cell with multiple nuclei.

    <p>True</p> Signup and view all the answers

    At what time of year does mitosis in plants occur most frequently, and why?

    <p>Spring, because of the growth of leaves and the need for increased cell division.</p> Signup and view all the answers

    What happens to a plant cell when it is placed in a hypotonic solution?

    <p>It swells and might burst</p> Signup and view all the answers

    An example of a selectively permeable membrane is the cell wall.

    <p>False</p> Signup and view all the answers

    During the _______ phase of mitosis, chromosomes are pulled apart to opposite poles of the cell.

    <p>Anaphase</p> Signup and view all the answers

    Study Notes

    Cell Cycle

    • The cell cycle is the series of events that take place in a cell leading to its division and duplication
    • The three stages of interphase are G1, S, and G2
    • G1 phase: Major growth period for the cell with synthesis of new molecules
    • S phase: DNA is replicated
    • G2 phase: Synthesis of further molecules before mitosis
    • This stage is 90% of the cell life cycle

    Prophase

    • Chromatin condenses, becoming visible chromosomes
    • Centrioles move to opposite poles of the cell
    • Spindle fibers form, coordinating chromosome movement
    • Nucleolus disappears
    • Nuclear envelope/membrane breaks down

    Lining Up

    • Spindle fibers move chromosomes to the middle of the cell, called the equator or metaphase plate
    • Chromosomes move to opposite poles along spindle fibers
    • Chromosomes align along the metaphase plate

    Metaphase

    • Spindle fibers attach to the centromere of each chromosome
    • Chromosomes align along the metaphase plate, the center of the cell

    Anaphase

    • Chromosomes separate at the centromere
    • Separated chromosomes are pulled to opposite poles by spindle fibres
    • The poles move farther apart

    Telophase

    • Chromosomes arrive at opposite poles
    • Daughter nuclei form around each set of chromosomes, now less visible under a microscope
    • Cytokinesis begins, the cell division process

    Cytokinesis

    • Animals: Cleavage furrow forms around the equator of the cell, cell splits into two
    • Plants: Cell plate forms between the two new cells, new cell wall fuses with existing cell walls, separating the two new cells

    Mitosis

    • The process of cell division that yields two genetically identical daughter cells
    • Prophase, prometaphase, metaphase, anaphase, telophase, and cytokinesis are the stages in mitosis

    Interphase

    • The cell grows and replicates its DNA, essential for subsequent cell division
    • The longest phase of the cell cycle
    • Divided into G1, S, and G2 phases

    Other Key Concepts

    • Centromere: The region where two sister chromatids are joined
    • Chromatid: One of two identical copies of a chromosome, joined at the centromere
    • Chromosome: Structure of DNA and proteins that carries genetic information
    • Spindle fibers: Protein structures that guide chromosome movement during cell division
    • Cell plate: Forms during plant cell cytokinesis, creating a new cell wall between daughter cells
    • Cleavage furrow: Forms during animal cell cytokinesis, pinching the cell in two

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Related Documents

    Chapter 1 Review Solutions PDF

    Description

    Explore the details of the cell cycle and the process of mitosis, including its phases: interphase, prophase, metaphase, and anaphase. This quiz covers key events and stages that lead to cell division, focusing on chromosomal behavior and cell growth. Test your knowledge of how cells duplicate and the mechanics behind each phase.

    More Like This

    Cell Division Cycle and Mitosis
    9 questions
    Cell Cycle Overview and Mitosis Process
    45 questions
    Cell Cycle and Mitosis Quiz
    10 questions
    Use Quizgecko on...
    Browser
    Browser