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Secretion vs Excretion
Difference, Examples & Quiz

What's the difference? Which one is correct?


Definition: The process of releasing a substance from a cell or gland.

Usage: Secretion plays a crucial role in various physiological processes.

Example sentences:
  • 1. The pancreas secretes insulin to regulate blood sugar levels.
  • 2. The salivary glands secrete saliva to aid in digestion.
  • 3. The mammary glands secrete milk to nourish the offspring.

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

Usage: Excretion helps maintain homeostasis and remove harmful substances.

Example sentences:
  • 1. The kidneys excrete urine to remove metabolic waste.
  • 2. The lungs excrete carbon dioxide during respiration.
  • 3. The skin excretes sweat to regulate body temperature.

Secretion refers to the process of releasing substances from cells or glands, while excretion refers to the process of eliminating waste products from the body.

Quizzes about "Secretion" vs "Excretion "

Secretion vs Excretion : 5 Quizzes

1. What is secretion?

2. What is excretion?

3. Which process involves releasing substances from cells into the extracellular environment?

4. Which process involves eliminating waste products from the body?

5. What is the purpose of secretion?


  • What is secretion?

    Secretion is the process of releasing substances, such as hormones or enzymes, from cells or glands.

  • How does secretion occur?

    Secretion occurs when specialized cells produce and release substances into the surrounding environment or bloodstream.

  • What are some examples of secretion?

    Examples of secretion include the release of saliva by salivary glands, the production of insulin by the pancreas, and the secretion of tears by tear glands.

  • Why is secretion important?

    Secretion plays a crucial role in various physiological processes, such as maintaining homeostasis, regulating body functions, and facilitating communication between cells.

  • Differentiate between secretion and excretion.

    While secretion involves the release of substances by cells or glands, excretion refers to the elimination of waste products or excess substances from the body.