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Questions and Answers

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

  • Control of cellular activities (correct)
  • Synthesis of lipids
  • Formation of cell membrane
  • Storage of energy
  • Which component of the nucleus is primarily responsible for protein production?

  • Nuclear pores
  • Nucleoplasm
  • Chromatin
  • Nucleoli (correct)
  • What is the structure known as chromatin responsible for?

  • Forming ribosomes
  • Transmitting genetic information
  • Loosely coiled DNA in non-dividing cells (correct)
  • Storing energy
  • Which of the following correctly describes the nuclear envelope?

    <p>Double membrane surrounding the nucleus</p> Signup and view all the answers

    What role do nuclear pores play in the nucleus?

    <p>Transport and communication</p> Signup and view all the answers

    In which form is DNA tightly coiled during cell division?

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

    What defines a gene in the context of DNA?

    <p>DNA instructions for a single protein</p> Signup and view all the answers

    What is the function of the nucleoplasm?

    <p>Contains ions, enzymes, and RNA</p> Signup and view all the answers

    What role do secretory vesicles play in the Golgi apparatus?

    <p>They modify and package products for exocytosis.</p> Signup and view all the answers

    Which function is NOT performed by lysosomes?

    <p>Producing ATP from glucose.</p> Signup and view all the answers

    Which statement about peroxisomes is true?

    <p>They replicate by division.</p> Signup and view all the answers

    What process occurs in the matrix of mitochondria?

    <p>Tricarboxylic acid cycle (TCA cycle).</p> Signup and view all the answers

    What is the primary function of the Golgi apparatus?

    <p>To modify, package, and sort proteins.</p> Signup and view all the answers

    Which of the following occurs during autolysis?

    <p>Lysosome membranes break down and enzymes are released.</p> Signup and view all the answers

    What is the main byproduct of the reaction that occurs in mitochondria during cellular respiration?

    <p>Carbon dioxide.</p> Signup and view all the answers

    Which organelle is responsible for cleaning up inside cells and recycling damaged components?

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

    What is the main function of the rough endoplasmic reticulum (RER)?

    <p>Primary site for protein synthesis and folding</p> Signup and view all the answers

    Which of the following is NOT a function of the endoplasmic reticulum?

    <p>Storage of DNA</p> Signup and view all the answers

    What is the role of lysosomes in a cell?

    <p>Decompose cellular debris and damaged structures</p> Signup and view all the answers

    Which organelle is responsible for packaging and modifying proteins?

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

    What type of ribosomes are found on the rough endoplasmic reticulum?

    <p>Only fixed ribosomes</p> Signup and view all the answers

    What is a primary function of mitochondria?

    <p>Energy production through ATP</p> Signup and view all the answers

    How do microvilli enhance cellular function?

    <p>By increasing surface area for absorption</p> Signup and view all the answers

    What is the relationship between the centrioles and the cell division process?

    <p>They form the spindle apparatus during division.</p> Signup and view all the answers

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