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Excretion vs Secretion
Difference, Examples & Quiz

What's the difference? Which one is correct?


Definition: The process of eliminating waste products from the body.

Usage: Excretion is an essential function of the urinary system.

Example sentences:
  • 1. The kidneys play a major role in excretion by filtering waste products from the blood.
  • 2. Sweating is another form of excretion, as it helps remove toxins from the body.
  • 3. The liver is involved in the excretion of bile, which aids in digestion.

Definition: The process of producing and releasing substances from cells or glands.

Usage: Secretion is important for various physiological functions in the body.

Example sentences:
  • 1. The salivary glands secrete saliva, which helps in the digestion of food.
  • 2. Hormones are secreted by endocrine glands and regulate various bodily processes.
  • 3. The pancreas secretes insulin, which is necessary for glucose metabolism.

Excretion and secretion are both processes that involve the release of substances from the body, but they differ in the nature of the substances being released and the organs involved.

Quizzes about "Excretion" vs "Secretion"

Excretion vs Secretion: 5 Quizzes

1. What is the process by which waste products are eliminated from the body?

2. What is the process by which substances are released from cells or glands?

3. Which process involves the removal of metabolic waste products?

4. Which process involves the release of digestive enzymes?

5. What is the process by which excess water and electrolytes are eliminated?


  • What is excretion?

    Excretion is the process by which waste products are eliminated from an organism's body.

  • How does excretion occur in humans?

    In humans, excretion primarily occurs through the urinary system, which filters waste products from the blood and eliminates them as urine.

  • What are some examples of excretory organs in animals?

    Animals have various excretory organs, such as kidneys, lungs, and skin, which help eliminate waste products from their bodies.

  • What is secretion?

    Secretion is the process by which cells release substances, such as hormones or enzymes, into the surrounding environment.

  • How does secretion contribute to bodily functions?

    Secretion plays a crucial role in various bodily functions, including digestion, regulation of metabolism, and communication between cells.