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Cellular Structures and DNA Quiz
18 Questions
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Cellular Structures and DNA Quiz

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@ThrilledGyrolite

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Questions and Answers

What is the actual diameter of a cell if its image is 0.8 mm in diameter when viewed through lenses E and O, which are marked 10× and 40× respectively?

  • 0.002 mm (correct)
  • 2 mm
  • 20 mm
  • 0.2 mm
  • What is the function of the cell membrane?

  • Brings the image into focus using the coarse focus wheel
  • Controls entry and exit of molecules (correct)
  • Protein synthesis
  • Protects the lens
  • What stain was used on the animal cell sample?

  • Cotton wool bud
  • Iodine
  • Methylene Blue (correct)
  • Water
  • Which category of organisms has a nucleus and membrane-bound organelles?

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

    What is the main difference between prokaryotic and eukaryotic cells?

    <p>Eukaryotic cells have membrane-bound organelles, while prokaryotic cells do not</p> Signup and view all the answers

    Which type of microscope uses accelerated electrons to provide greater resolution and magnification?

    <p>Scanning Electron Microscope (SEM)</p> Signup and view all the answers

    Which type of microscope has a higher resolution?

    <p>Electron microscope</p> Signup and view all the answers

    What is the function of the diaphragm in a light microscope?

    <p>To control the amount of light passing to the slide</p> Signup and view all the answers

    Which cell component is responsible for holding in cell contents and controlling the entry and exit of molecules?

    <p>Cell membrane</p> Signup and view all the answers

    What is the function of the nucleus in a cell?

    <p>To control all cell activities</p> Signup and view all the answers

    Which organelle is responsible for producing almost all the energy required by the cell?

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

    What is the function of ribosomes in a cell?

    <p>Protein synthesis</p> Signup and view all the answers

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

    <p>Controls cell growth and shape</p> Signup and view all the answers

    What is the function of vacuoles in a cell?

    <p>Temporary storage of food, water, and excretory products</p> Signup and view all the answers

    Which structures are responsible for protein synthesis in the cell?

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

    What is the function of mitochondria in the cell?

    <p>Producing energy</p> Signup and view all the answers

    What is the function of chloroplasts in plant cells?

    <p>Making carbohydrates</p> Signup and view all the answers

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

    <p>Gives strength and protection</p> Signup and view all the answers

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