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Germ Layers Quiz
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Germ Layers Quiz

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@AstoundedBlackTourmaline

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Questions and Answers

What is the function of aldosterone in the kidneys?

  • To increase glomerular filtration rate
  • To secrete potassium
  • To reabsorb more sodium (correct)
  • To decrease blood pressure
  • Which hormone is responsible for stimulating the release of antidiuretic hormone (ADH) from the hypothalamus?

  • Angiotensin 2 (correct)
  • Aldosterone
  • Epinephrine
  • Renin
  • What is the role of the zona pellucida in the fertilization process?

  • To initiate the acrosomal reaction
  • To transfer the sperm nucleus into the ovum
  • To fuse with the sperm plasma membrane
  • To protect the egg (correct)
  • What happens when the sperm plasma membrane fuses with the egg plasma membrane during fertilization?

    <p>The sperm nucleus is transferred into the ovum</p> Signup and view all the answers

    What is the main function of the kidneys in maintaining homeostasis?

    <p>Maintaining water balance</p> Signup and view all the answers

    Study Notes

    Hormone Functions

    • Aldosterone's primary function in the kidneys is to regulate electrolyte balance and blood pressure by stimulating the reabsorption of sodium and water in the distal tubules and collecting ducts.

    Hormone Regulation

    • The hypothalamus releases corticotropin-releasing hormone (CRH), which stimulates the release of adrenocorticotropic hormone (ACTH) from the anterior pituitary gland, ultimately leading to the release of antidiuretic hormone (ADH) from the hypothalamus.

    Fertilization Process

    • The zona pellucida is a glycoprotein layer surrounding the oocyte, playing a crucial role in the fertilization process by allowing only sperm with the correct receptors to bind and undergo fusion.

    Fertilization Mechanism

    • During fertilization, the sperm plasma membrane fuses with the egg plasma membrane through a process called gamete membrane fusion, resulting in the formation of a zygote.

    Kidney Function

    • The main function of the kidneys in maintaining homeostasis is to regulate electrolyte balance, blood pressure, and pH levels by controlling the excretion and reabsorption of ions, water, and waste products.

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    Related Documents

    Biology.pdf

    Description

    Test your knowledge of embryonic development with this quiz on germ layers! Learn about the ectoderm, mesoderm, and endoderm, and how they differentiate into different organ systems. Challenge yourself to remember which germ layer gives rise to which structures in the body.

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