Ch 4: Gametogenesis
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Questions and Answers

What is the primary function of the acrosome in a sperm cell?

  • Protection of nucleus
  • Penetration of egg's outer layers (correct)
  • Energy production
  • Storage of mitochondria

    • Which male hormone drives the process of spermatogenesis?

  • Progesterone
  • Estrogen
  • Prolactin
  • Testosterone (correct)

    • How many chromosomes are present in a haploid sperm cell?

  • 22
  • 44
  • 23 (correct)
  • 46

    • Where does spermatogenesis primarily take place in males?

    <p>Seminiferous tubules</p> Signup and view all the answers

    What is the function of the tail in a sperm cell?

    <p>Enable swimming motion</p> Signup and view all the answers

    What is the counterpart of oogenesis in females?

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

    Which hormone regulates the cyclical events of oogenesis every 28 days?

    <p>Follicle-stimulating hormone (FSH)</p> Signup and view all the answers

    How many haploid cells are produced through the meiotic process in oogenesis?

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

    What is the role of follicle cells in the structure of an ovum?

    <p>Offering support and protection</p> Signup and view all the answers

    How many autosomes does a haploid nucleus in an ovum typically contain?

    <p>22</p> Signup and view all the answers

    What is the main driving force behind the process of spermatogenesis?

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

    Which of the following components is NOT found in the head of a sperm cell?

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

    What is the primary function of the acrosome in a sperm cell?

    <p>Facilitating fertilization by penetrating the egg's outer layers</p> Signup and view all the answers

    During meiosis, how many chromosomes are present in a diploid germinal epithelial cell undergoing division for spermatogenesis?

    <p>46</p> Signup and view all the answers

    Which part of a sperm cell houses the majority of mitochondria?

    <p>Middle portion</p> Signup and view all the answers

    What chromosome composition can a sperm cell carry after completing spermatogenesis?

    <p>Both X and Y chromosomes</p> Signup and view all the answers

    Where does the process of spermatogenesis primarily occur within the male reproductive system?

    <p>Seminiferous tubules</p> Signup and view all the answers

    Which hormone regulates the enlargement of one cell within a follicle during oogenesis?

    <p>Follicle-stimulating hormone (FSH)</p> Signup and view all the answers

    What is the primary function of follicle cells in oogenesis?

    <p>Offering support and protection to the egg</p> Signup and view all the answers

    How many haploid cells typically survive to become mature ova during oogenesis?

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

    Which of the following is found surrounding the egg in the structure of an ovum?

    <p>Jelly layer</p> Signup and view all the answers

    During oogenesis, what is the ploidy of the nucleus in the mature ovum?

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

    In oogenesis, what happens to the three haploid cells that degenerate?

    <p>They form polar bodies</p> Signup and view all the answers

    Which process in oogenesis results in the formation of haploid cells?

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

    What is the role of the cytoplasm in the structure of an ovum?

    <p>Supplying essential nutrients for the developing egg</p> Signup and view all the answers

    What is the primary role of testosterone in the process of spermatogenesis?

    <p>Initiating the meiotic division of diploid germinal epithelial cells</p> Signup and view all the answers

    What is the chromosomal composition of a haploid sperm cell?

    <p>23 autosomes and 1 sex chromosome</p> Signup and view all the answers

    Which part of a sperm cell contains mitochondria for energy production?

    <p>Middle portion (neck)</p> Signup and view all the answers

    What is the main function of the acrosome in a sperm cell?

    <p>Facilitating the entry of sperm into the egg during fertilization</p> Signup and view all the answers

    Which structure in a sperm cell is responsible for propelling it forward?

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

    How many chromosomes are present in a diploid germinal epithelial cell before undergoing meiosis for spermatogenesis?

    <p>46</p> Signup and view all the answers

    What contributes to the sex determination of offspring through spermatogenesis?

    <p>The sex chromosome carried by the sperm cell</p> Signup and view all the answers

    What is the role of the jelly layer surrounding the egg in the structure of an ovum?

    <p>Offers protection to the egg during early development</p> Signup and view all the answers

    What is the ploidy of the nucleus in a diploid germinal epithelial cell undergoing mitosis during oogenesis?

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

    Which hormone is responsible for regulating the events of oogenesis every 28 days?

    <p>Follicle-stimulating hormone (FSH)</p> Signup and view all the answers

    What happens to the three degenerate haploid cells during oogenesis?

    <p>Undergo apoptosis and are absorbed</p> Signup and view all the answers

    Which of the following is NOT a component of the structure of an ovum?

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

    What is the chromosomal composition of a mature ovum's haploid nucleus?

    <p>22 autosomes and one X chromosome</p> Signup and view all the answers

    During oogenesis, what is the role of the follicle cells surrounding the egg?

    <p>Offer support and protection to the egg</p> Signup and view all the answers

    What is the primary function of the cytoplasm in the structure of an ovum?

    <p>Provides essential nutrients for egg development</p> Signup and view all the answers

    What is the role of the jelly layer surrounding the egg in the structure of an ovum?

    <p>Safeguarding the egg during early developmental stages</p> Signup and view all the answers

    Which hormone regulates the cyclical events of oogenesis every 28 days?

    <p>Follicle-stimulating hormone (FSH)</p> Signup and view all the answers

    What contributes to the sex determination of offspring through oogenesis?

    <p>The X chromosome in the ovum's nucleus</p> Signup and view all the answers

    What is the primary function of follicle cells in oogenesis?

    <p>Supporting and protecting the egg</p> Signup and view all the answers

    During oogenesis, what is the ploidy of the nucleus in a mature ovum?

    <p>Haploid with 22 autosomes and one X chromosome</p> Signup and view all the answers

    What is the primary function of the cytoplasm in the structure of an ovum?

    <p>Supplying essential nutrients for egg development</p> Signup and view all the answers

    What happens to the three haploid cells that degenerate during oogenesis?

    <p>They undergo apoptosis and are eliminated</p> Signup and view all the answers

    What is the primary driver of the process of spermatogenesis?

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

    Which part of a sperm cell primarily supplies the energy needed for its motility?

    <p>Middle portion</p> Signup and view all the answers

    What is the sex chromosome composition of the nucleus within a mature sperm cell?

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

    Which part of a sperm cell contains enzymes essential for penetrating the egg's outer layers during fertilization?

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

    What is the chromosomal content of a diploid germinal epithelial cell before it undergoes meiosis during spermatogenesis?

    <p>46 chromosomes</p> Signup and view all the answers

    Which cellular process results in the generation of four haploid spermatids during spermatogenesis?

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

    What is the primary function of the tail in a sperm cell?

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

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