Viruses Characteristics
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Questions and Answers

What is a defining characteristic of viruses?

  • They contain either DNA or RNA (correct)
  • They have cellular structure
  • They can reproduce outside of living cells
  • They are larger than bacteria
  • Which virus is responsible for causing AIDS?

  • Tobacco mosaic virus
  • Non-specific virus
  • Influenza virus
  • HIV virus (correct)
  • What is the role of chloroplasts in cells?

  • Provide strength to the cell wall
  • Support cell structures
  • Control cell division
  • Absorb sunlight for photosynthesis (correct)
  • Which statement about cell membrane permeability is true?

    <p>Cell membrane controls what enters and leaves the cell</p> Signup and view all the answers

    What is a key difference between unicellular and multicellular organisms?

    <p>Multicellular organisms are made of collections of cells</p> Signup and view all the answers

    What is the main function of the nucleus in a cell?

    <p>Contains genetic material that controls cell function</p> Signup and view all the answers

    What is the function of a vacuole in a cell?

    <p>Contains cell sap and helps support the shape of the cell</p> Signup and view all the answers

    Which organelle is responsible for protein production in a cell?

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

    What is the main function of a mitochondrion in a cell?

    <p>Site of aerobic respiration</p> Signup and view all the answers

    What is the function of a cell wall in plant cells?

    <p>Gives shape and protection to the cell</p> Signup and view all the answers

    Where do chemical reactions take place in a cell?

    <p>In the cytoplasm</p> Signup and view all the answers

    Which organelle is responsible for transporting substances between cells?

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

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