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The secretion of endocrine gland's hormo...

The secretion of endocrine gland's hormones are chemically

A

protein or polypeptides

B

glycoprotenis

C

steroids

D

all of the above

Text Solution

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The correct Answer is:
To solve the question regarding the chemical nature of hormones secreted by endocrine glands, we will analyze each option provided: ### Step-by-Step Solution: 1. **Understanding Hormones**: Hormones are chemical messengers produced by endocrine glands that regulate various physiological processes in the body. 2. **Option 1: Protein or Polypeptide Hormones**: - These hormones are made up of chains of amino acids. - Examples include Antidiuretic Hormone (ADH), which helps regulate blood pressure and water balance. 3. **Option 2: Steroid Hormones**: - Steroid hormones are derived from lipids (fats). - They include hormones such as testosterone, estrogen, and progesterone, which are primarily involved in reproductive functions. 4. **Option 3: Glycoprotein Hormones**: - Glycoprotein hormones consist of protein and carbohydrate components, making them more complex. - Examples include Follicle Stimulating Hormone (FSH), Luteinizing Hormone (LH), and Thyroid Stimulating Hormone (TSH). 5. **Conclusion**: Since hormones can be classified into all the mentioned categories (protein/polypeptide, steroid, and glycoprotein), the correct answer to the question is "all of the above". ### Final Answer: The secretion of endocrine gland hormones are chemically: **All of the above**. ---
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