Cell and Cell Theory Quiz
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Questions and Answers

Which of the following statements is a fundamental tenet of the cell theory?

  • All living organisms are composed of one or more cells. (correct)
  • Cells can spontaneously generate from non-living matter.
  • All cells exist in multicellular organisms.
  • Cells are formed from molecules smaller than themselves.
  • What is the primary distinction between eukaryotic and prokaryotic cells?

  • Eukaryotic cells contain membrane-bound organelles, including a nucleus. (correct)
  • Prokaryotic cells contain membrane-bound organelles, including a nucleus.
  • Prokaryotic cells are generally larger and more complex than eukaryotic cells.
  • Eukaryotic cells lack a plasma membrane.
  • Which of the following structures is present in eukaryotic cells but absent in prokaryotic cells?

  • Ribosomes
  • Cytoplasm
  • Cell Wall
  • Nucleus (correct)
  • Within a eukaryotic cell, what is the function of organelles?

    <p>To carry out specific functions necessary for life (D)</p> Signup and view all the answers

    Which example is matched INCORRECTLY?

    <p>Rose : Prokaryote (D)</p> Signup and view all the answers

    What is the primary function of the cell membrane?

    <p>To support the cell and regulate the movement of substances in and out. (B)</p> Signup and view all the answers

    Which organelle is responsible for generating energy through cellular respiration?

    <p>Mitochondrion (C)</p> Signup and view all the answers

    Where is DNA primarily located within a eukaryotic cell?

    <p>Nucleus (C)</p> Signup and view all the answers

    Which of the following is a primary function of the endoplasmic reticulum?

    <p>Transporting materials throughout the cell (C)</p> Signup and view all the answers

    What is the main role of Golgi bodies within a cell?

    <p>Collecting and processing materials to be removed from the cell (D)</p> Signup and view all the answers

    What is cytoplasm primarily composed of?

    <p>Water and dissolved substances (A)</p> Signup and view all the answers

    What feature makes the cell membrane 'semi-permeable'?

    <p>Its selective control over which molecules can pass through (C)</p> Signup and view all the answers

    What is the waste product of cellular respiration?

    <p>Carbon dioxide and water (B)</p> Signup and view all the answers

    Which structure is present in plant cells but not in animal cells?

    <p>Cell wall (C)</p> Signup and view all the answers

    What is the function of the vacuole?

    <p>Storing substances, removing unwanted substances and to maintain internal fluid pressure (A)</p> Signup and view all the answers

    Flashcards

    Cell Theory

    A fundamental theory stating that all living things are made of cells, cells are basic units of life, and come from pre-existing cells.

    Prokaryotes

    Cells without a nucleus or membrane-bound organelles, like bacteria.

    Eukaryotes

    Cells with a nucleus and membrane-bound organelles, such as plants and animals.

    Organelles

    Specialized structures within eukaryotic cells that perform specific functions.

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    Basic Unit of Life

    Cells are considered the basic unit of all living organisms.

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    Cytoplasm

    The fluid within a cell where organelles are suspended and chemical reactions occur.

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    Cell Membrane

    A semi-permeable barrier that surrounds the cell, controlling what enters and exits.

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    Nucleus

    The control center of the cell that contains genetic information in chromosomes.

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    Mitochondria

    Energy-producing organelles known as the cell's power plants; convert glucose into usable energy.

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    Endoplasmic Reticulum (ER)

    A network of tubes that transports materials and aids in protein and hormone production.

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    Golgi Bodies

    Organelles that collect, process, and transport materials out of the cell, including mucus.

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    Vacuoles

    Fluid-filled sacs that store materials, maintain pressure, and help in waste removal.

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    Cell Wall

    A rigid outer layer found in plant cells providing structure and support, not present in animal cells.

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    Chloroplasts

    Organelles in plant cells that convert light energy into chemical energy through photosynthesis.

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    Difference between Plant and Animal Cells

    Plant cells have cell walls, large vacuoles, and chloroplasts; animal cells do not.

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    Study Notes

    Cell and Cell Theory

    • Cells are the smallest units of life.
    • Modern biology is based on cell theory.

    The Cell Theory

    • All living things are made up of one or more cells.
    • Cells are the basic units of life and carry out all life processes.
    • All cells come from pre-existing cells.

    Two Types of Cells:

    Prokaryotes

    • Cells that do not contain a nucleus or other membrane-bound organelles.
    • Ex: e. coli bacteria

    Eukaryotes

    • Cells that contain a nucleus and other organelles, each surrounded by a thin membrane.
    • Ex: Amoeba, whale, plant
    • Eukaryotes have specialized parts called organelles that carry out specific functions necessary for life.

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    Description

    Test your understanding of cell structure and the fundamental principles of cell theory. This quiz covers the definitions, types of cells, and the significance of prokaryotes and eukaryotes. Perfect for students in biology classes!

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