Mitochondria in Eukaryotic Cells
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Questions and Answers

What is the characteristic of mitochondria that suggests they originated from bacteria?

  • Having two distinct membranes (correct)
  • Having a single membrane
  • Having a fixed shape
  • Being found in the nucleus
  • What is the function of the enzymes in the inner mitochondrial membrane?

  • Breaking down food
  • Carrying out ATP production (correct)
  • Storing genetic information
  • Regulating cell growth
  • Where is the mitochondrial DNA located?

  • In the cytoplasm
  • In the outer membrane
  • In the matrix (correct)
  • In the intermembrane space
  • What is the term for the highly folded inner membrane of mitochondria?

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

    What is the primary function of mitochondria in the cell?

    <p>Producing energy currency (ATP)</p> Signup and view all the answers

    What is the site for material exchange between the mitochondria and the cytoplasm?

    <p>Intermembrane space</p> Signup and view all the answers

    What is the role of mitochondria in apoptosis?

    <p>To release cytochrome C and initiate a chain of reactions that ends with cell death</p> Signup and view all the answers

    How do enzymes lower the activation energy of a reaction?

    <p>By binding with the substrate and forming an enzyme-substrate complex</p> Signup and view all the answers

    What is the result of meiosis in sexually reproducing organisms?

    <p>Gametes with half the genetic information of the parents</p> Signup and view all the answers

    What is the difference between mitosis and meiosis?

    <p>Mitosis produces genetically identical cells while meiosis produces genetically diverse cells</p> Signup and view all the answers

    What is the function of an antheridium in plants?

    <p>To store and produce sperm cells</p> Signup and view all the answers

    What is a characteristic of Bryophytes?

    <p>They are non-vascular plants without xylem and phloem systems</p> Signup and view all the answers

    What is the term for the process by which ferns reproduce?

    <p>Alternation of generations</p> Signup and view all the answers

    What is the purpose of water in fern reproduction?

    <p>To allow sperm cells to swim to the egg</p> Signup and view all the answers

    What is the result of fertilization in ferns?

    <p>Development of a zygote with a diploid number of chromosomes</p> Signup and view all the answers

    What is the number of chromosomes in the gametes produced during meiosis?

    <p>Haploid (n)</p> Signup and view all the answers

    What is the purpose of crossing over during prophase I of meiosis?

    <p>To increase genetic variation</p> Signup and view all the answers

    What is the term for the process by which cells multiply?

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

    What is the stage of the cell cycle where DNA synthesis and duplication occur?

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

    What is the result of endoreplication?

    <p>Retention of four copies of each chromosome in the non-dividing cell</p> Signup and view all the answers

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