WK 1: Intro to Cells
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Questions and Answers

What is the primary function of the cytoskeleton in a cell?

  • To convert glucose to ATP
  • To maintain structural integrity (correct)
  • To synthesize proteins
  • To remove waste products
  • Which organelle is responsible for generating energy for the cell through cellular respiration?

  • Nucleus
  • Mitochondria (correct)
  • Lysosomes
  • Cytosol
  • What is the term for the living substance of a cell?

  • Karyoplasm
  • Protoplasm (correct)
  • Cytoplasm
  • Cytoskeleton
  • What is the function of lysosomes in a cell?

    <p>To remove waste products</p> Signup and view all the answers

    What percentage of a cell's machinery is dedicated to making proteins?

    <p>A large percentage</p> Signup and view all the answers

    What is the approximate number of cells in the human body?

    <p>75 trillion</p> Signup and view all the answers

    What is the primary function of the cytoskeleton in a eukaryotic cell?

    <p>To provide a structural framework</p> Signup and view all the answers

    Which organelle is responsible for removing waste products from the cell?

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

    What is the primary role of microtubules in a eukaryotic cell?

    <p>To transport vesicles and organelles</p> Signup and view all the answers

    Which of the following is NOT a primary process of a eukaryotic cell?

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

    What is the primary function of the nucleolus in a eukaryotic cell?

    <p>Synthesis of ribosomal RNA</p> Signup and view all the answers

    What is the main difference between euchromatin and heterochromatin?

    <p>Euchromatin is involved in transcription, while heterochromatin is not</p> Signup and view all the answers

    What is the primary function of mitochondria in a eukaryotic cell?

    <p>To convert glucose to ATP</p> Signup and view all the answers

    Which of the following is a function of intermediate filaments?

    <p>To provide mechanical support</p> Signup and view all the answers

    What is the role of the nuclear pore in the nuclear envelope?

    <p>To control the movement of molecules in and out of the nucleus</p> Signup and view all the answers

    What is the final destination of mRNA after it is transcribed from DNA?

    <p>The ribosomes in the cytoplasm</p> Signup and view all the answers

    What is the main function of importins and exportins in the nuclear envelope?

    <p>To transport molecules into and out of the nucleus</p> Signup and view all the answers

    What is the primary function of the endoplasmic reticulum and Golgi apparatus in protein synthesis?

    <p>To fold and package protein</p> Signup and view all the answers

    What is the primary difference between eukaryotic and prokaryotic cells?

    <p>Prokaryotic cells lack a true nucleus</p> Signup and view all the answers

    What is the primary function of the major cellular organelles?

    <p>To perform specific cellular functions</p> Signup and view all the answers

    What is the term for the study of the structure and function of cells?

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

    What is the name of the bacterium that was discovered to cause most peptic ulcers?

    <p>Helicobacter pylori</p> Signup and view all the answers

    What is the importance of understanding the basic structure and function of a eukaryotic cell?

    <p>All of the above</p> Signup and view all the answers

    What was the previous thought on the cause of peptic ulcer disease and gastritis before 1982?

    <p>Stress and lifestyle factors</p> Signup and view all the answers

    What is the primary function of the Rough Endoplasmic Reticulum?

    <p>Synthesis and modification of proteins</p> Signup and view all the answers

    What is the main difference between Rough Endoplasmic Reticulum and Smooth Endoplasmic Reticulum?

    <p>Presence of ribosomes on the surface</p> Signup and view all the answers

    What is the role of the Golgi Complex in protein synthesis?

    <p>Modification and packaging of proteins</p> Signup and view all the answers

    What is the main function of the Endoplasmic Reticulum as a whole?

    <p>Synthesis, storage, and transport of macromolecules</p> Signup and view all the answers

    Where do proteins synthesized in the Rough Endoplasmic Reticulum eventually go?

    <p>Golgi Apparatus</p> Signup and view all the answers

    What is the largest membranous system in a cell?

    <p>Endoplasmic Reticulum</p> Signup and view all the answers

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