Gametogenesis in Males: Spermatogenesis
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Questions and Answers

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

  • Protecting the tail of the sperm cell
  • Containing enzymes for penetrating the egg's outer layers (correct)
  • Supplying energy for motility
  • Storage of genetic material

    • Which male reproductive organ is primarily involved in spermatogenesis?

  • Vas deferens
  • Testes (correct)
  • Epididymis
  • Prostate gland

    • How many chromosomes are typically found in a haploid sperm cell?

  • 46
  • 20
  • 23 (correct)
  • 44

    • Which hormone mainly drives the process of spermatogenesis?

    <p>Testosterone (B)</p> Signup and view all the answers

    What part of the sperm cell provides the energy required for its motility?

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

    Which hormone regulates the cyclic process of oogenesis?

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

    What is the result of the meiotic process during oogenesis?

    <p>Four haploid cells, but only one survives to become a mature ovum (B)</p> Signup and view all the answers

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

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

    What is the ploidy of the nucleus in a mature ovum?

    <p>Haploid (23 chromosomes) (A)</p> Signup and view all the answers

    Which cells degenerate during the meiotic process in oogenesis?

    <p>Three out of four haploid cells (A)</p> Signup and view all the answers

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

    <p>Initiates meiosis in diploid germinal epithelial cells (A)</p> Signup and view all the answers

    What is the ploidy of the spermatids produced during spermatogenesis?

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

    Which part of a sperm cell is responsible for penetrating the egg's outer layers during fertilization?

    <p>Acrosome (C)</p> Signup and view all the answers

    What is the composition of the nucleus in a mature sperm cell?

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

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

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

    What is the main role of the tail in a sperm cell?

    <p>Provides energy for motility (A)</p> Signup and view all the answers

    During which stage of spermatogenesis do four haploid spermatids form?

    <p>Resulting meiotic division (D)</p> Signup and view all the answers

    What is the main hormone that regulates the cyclic process of oogenesis?

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

    Which cells divide through mitosis to form multiple follicles during oogenesis?

    <p>Germinal epithelium cells (B)</p> Signup and view all the answers

    What is the purpose of the layer of jelly surrounding the egg in oogenesis?

    <p>Support and protection (C)</p> Signup and view all the answers

    How many haploid cells are produced as a result of the meiotic process in oogenesis?

    <p>Four (A)</p> Signup and view all the answers

    What is the ploidy of a mature ovum's nucleus?

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

    Which hormone is primarily responsible for maturing one cell within a follicle during oogenesis?

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

    What provides essential nutrients for the developing egg during oogenesis?

    <p>Cytoplasm (A)</p> Signup and view all the answers

    What is the primary role of testosterone in spermatogenesis?

    <p>Stimulating meiotic division of haploid germinal epithelial cells. (A)</p> Signup and view all the answers

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

    <p>Contains enzymes for penetrating the egg's outer layers during fertilization. (B)</p> Signup and view all the answers

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

    <p>Tail (C)</p> Signup and view all the answers

    What is the composition of the head of a sperm cell primarily made up of?

    <p>Nucleus with autosomes and sex chromosome (C)</p> Signup and view all the answers

    During spermatogenesis, what is the result of meiotic division?

    <p>Generation of haploid sperm cells. (B)</p> Signup and view all the answers

    Which part of the sperm cell primarily enables it to swim through fluid?

    <p>Tail (C)</p> Signup and view all the answers

    What is the process through which four haploid spermatids form during spermatogenesis?

    <p>Meiotic division of diploid germinal epithelial cells. (D)</p> Signup and view all the answers

    What is the main function of follicle-stimulating hormone (FSH) in the process of oogenesis?

    <p>Regulating the cyclic enlargement of one cell within a follicle (A)</p> Signup and view all the answers

    Which structure of an ovum is responsible for providing crucial nutrients during early developmental stages post-fertilization?

    <p>Cytoplasm (D)</p> Signup and view all the answers

    What is the ultimate fate of the three haploid cells that degenerate during the meiotic process in oogenesis?

    <p>They undergo apoptosis and are eventually reabsorbed (D)</p> Signup and view all the answers

    Which chromosome composition is typically found in a haploid nucleus within an ovum?

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

    What is the primary role of the layer of jelly surrounding the egg in oogenesis?

    <p>Facilitating sperm penetration (A)</p> Signup and view all the answers

    During oogenesis, what triggers the enlargement of one cell within a follicle that will go on to undergo meiosis?

    <p>Stimulation by follicle-stimulating hormone (FSH) (A)</p> Signup and view all the answers

    Which stage of oogenesis involves the production of four haploid cells, with only one surviving to become a mature ovum?

    <p>Meiotic process following cell enlargement (D)</p> Signup and view all the answers

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