Trivia Quiz On Structure And Function Of A Cell Membrane!

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| By Shannon Gilroy
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Shannon Gilroy
Community Contributor
Quizzes Created: 9 | Total Attempts: 8,583
Questions: 7 | Attempts: 179

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Trivia Quiz On Structure And Function Of A Cell Membrane! - Quiz

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Questions and Answers
  • 1. 

    Two basic components of a cell membrane are phospholipids and proteins.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Phospholipids and proteins are indeed two fundamental components of a cell membrane. Phospholipids form a lipid bilayer, creating a barrier that separates the internal and external environments of the cell. Proteins are embedded within this lipid bilayer and play various roles, such as transporting molecules in and out of the cell, facilitating cell signaling, and providing structural support. Therefore, the statement that phospholipids and proteins are basic components of a cell membrane is true.

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  • 2. 

    The basic unit of life is the cell.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The basic unit of life is the cell because cells are the smallest structural and functional units of living organisms. They are capable of carrying out all the necessary processes for life, such as metabolism, growth, and reproduction. Cells can be found in all living organisms, from single-celled organisms like bacteria to complex multicellular organisms like plants and animals. They are responsible for maintaining the overall structure and function of an organism, making them the fundamental building blocks of life.

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  • 3. 

    Lipid soluble molecules, like oxygen, carbon dioxide, and steroids can NOT pass through a cell membrane.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Lipid soluble molecules, like oxygen, carbon dioxide, and steroids, can pass through a cell membrane. This is because the cell membrane is primarily composed of a lipid bilayer, which allows lipid soluble molecules to easily diffuse across it. Therefore, the statement that lipid soluble molecules cannot pass through a cell membrane is false.

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  • 4. 

    Glucose, amino acids, ions, and water CAN NOT easily go thorough a cell membrane because they are water soluble.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Water-soluble molecules such as glucose, amino acids, ions, and water cannot easily pass through a cell membrane because the cell membrane is primarily composed of a lipid bilayer, which is hydrophobic and repels water-soluble substances. These molecules require specific transport proteins or channels to facilitate their movement across the cell membrane.

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  • 5. 

    Carbohydrates attached to a cells surface is used to identify the cell.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Carbohydrates attached to a cell's surface are used to identify the cell because they act as markers or signals that allow cells to recognize and communicate with each other. These carbohydrates, also known as glycoproteins or glycolipids, play a crucial role in various cellular processes such as cell adhesion, immune response, and cell signaling. They can interact with specific proteins or receptors on other cells, enabling recognition and triggering appropriate cellular responses. Therefore, the statement "Carbohydrates attached to a cell's surface are used to identify the cell" is true.

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  • 6. 

    The head of a phospholipid is hydrophobic and moves away from water.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The head of a phospholipid is hydrophilic, not hydrophobic, which means it is attracted to water rather than repelled by it. The hydrophilic head contains a phosphate group and is polar, allowing it to interact with water molecules. The hydrophobic tail, on the other hand, is made up of nonpolar fatty acid chains and is repelled by water. This arrangement forms the basis of the phospholipid bilayer in cell membranes, with the hydrophilic heads facing the watery environment inside and outside the cell, while the hydrophobic tails are sandwiched in between.

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  • 7. 

    A cell membrane is made of three layers of phopholipids.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    A cell membrane is made of two layers of phospholipids, not three. The phospholipids arrange themselves in a bilayer, with their hydrophilic heads facing outward and their hydrophobic tails facing inward. This structure provides the cell membrane with its characteristic fluidity and selective permeability, allowing it to regulate the movement of substances in and out of the cell.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 05, 2015
    Quiz Created by
    Shannon Gilroy
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