Question

Which of the following statement is true about the endocrine system?

• A. Hormones are transported through the blood
• B. Hormones are secreted by target cells
• C. Hormones do not affect the growth and development
• D. The target cells do not require hormone receptors

Answer 1

The correct option is A

Hormones are transported through the blood

Hormones are secreted by endocrine glands. Hormones reach every cell in the body as they are transported by the blood. But all hormones do not act upon all cells. Each hormone acts upon only those cells which have specific receptors. These cells which are acted upon by the hormones are called target cells. Hormones affect the growth and development of the body and the sex organs.