28. Which of the following statements about hormones is incorrect? a) Glands that produce them are ductless glands. b) They are produced only by organs called endocrine organs. c) Some are water soluble and some are not. d) They often maintain steady-state conditions. e) They may turn genes off or on

b) They are produced only by organs called endocrine organs.

Explanation:

Hypothalamus can be defined as a small portion of the mammalian brain responsible for the secretion of hormones through the stimulation of the pituitary gland.

It is located between the midbrain and the thalamus. Also, hypothalamus is the most inferior portion in the diencephalon of the forebrain.

Basically, hypothalamus is the most important portion of the brain in vertebrates that controls various bodily functions.

An endocrine system refers to a series of ductless glands and organs responsible for the production and secretion of hormones that are used by the body for the performance of various functions such as metabolism, controlling growth, reproduction, mood, sleep, etc. These hormones are secreted directly into the circulatory system (blood) and then transported to the organs and tissues in the body.

The following statements about hormones are correct;

I. Glands saddled with the responsibility of producing hormones are ductless glands i.e directly secreting hormones into the bloodstream.

II. Hormones are either soluble in water or insoluble in water.

III. Hormones are often responsible for maintaining steady-state conditions in the body of a living organism through homeostasis.

IV. Hormones are typically able to turn genes off or on.