Questions: How do endocrine and exocrine glands differ?

How do endocrine and exocrine glands differ?
Transcript text: How do endocrine and exocrine glands differ?
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Solution

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The answer is the fourth one: Endocrine glands do not use ducts.

Explanation for each option:

  1. Exocrine glands secrete hormones.

    • This is incorrect. Exocrine glands secrete substances such as enzymes, sweat, and saliva, but not hormones. Hormones are secreted by endocrine glands.

  2. Exocrine glands can be multicellular.

    • This is correct, but it does not differentiate between endocrine and exocrine glands. Both types of glands can be multicellular.

  3. Exocrine glands use exocytosis to release their products.

    • This is correct, but it is not exclusive to exocrine glands. Endocrine glands also use exocytosis to release hormones into the bloodstream.

  4. Endocrine glands do not use ducts.

    • This is correct. Endocrine glands release their hormones directly into the bloodstream, whereas exocrine glands release their products through ducts to the surface of an organ or tissue.

Summary: Endocrine and exocrine glands differ primarily in their method of secretion. Endocrine glands release hormones directly into the bloodstream without the use of ducts, while exocrine glands secrete their products through ducts to specific locations.

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