Question

Які основні властивості гормонів і нейрогормонів​

Answer 1

Ответ:

Гормони – біологічно активні речовини, які здатні включатися до біохімічних реакцій і регулювати обмін речовин та енергії.

Нейрогормони- нейросекрети, фізіологічно активні речовини, що виробляються особливими нейронами – нейросекреторними клітинами.

Объяснение:

Answer 2

Main Properties of Hormones and Neurohormones

Hormones and neurohormones are important chemical messengers in the body that regulate various physiological processes. Here are the main properties of hormones and neurohormones:

1. Chemical Nature: Hormones and neurohormones are both chemical substances produced by specialized cells in the body. They can be classified into different chemical classes, such as proteins, peptides, steroids, and amines.

2. Secretion: Hormones are typically secreted by endocrine glands into the bloodstream, while neurohormones are secreted by specialized neurons into the bloodstream or directly into target tissues.

3. Target Cells: Hormones and neurohormones act on specific target cells or tissues in the body. They bind to specific receptors on the surface of target cells or enter the cells to initiate a response.

4. Regulation of Physiological Processes: Hormones and neurohormones play a crucial role in regulating various physiological processes in the body. They can influence metabolism, growth and development, reproduction, stress response, and many other functions.

5. Feedback Mechanisms: Hormone secretion is often regulated by feedback mechanisms to maintain homeostasis in the body. Negative feedback loops involve the inhibition of hormone secretion when the concentration of the hormone reaches a certain level. Positive feedback loops, on the other hand, amplify hormone secretion.

6. Duration of Action: The duration of action of hormones and neurohormones can vary. Some hormones have a short half-life and their effects are relatively short-lived, while others have a longer half-life and can have prolonged effects.

7. Interactions with Other Systems: Hormones and neurohormones interact with other systems in the body, such as the nervous system and the immune system. They can influence neuronal activity, immune responses, and the overall coordination of physiological processes.

8. Regulation by Feedback Mechanisms: The secretion of hormones and neurohormones is regulated by complex feedback mechanisms involving the hypothalamus, pituitary gland, and other endocrine glands. These feedback mechanisms ensure the proper balance and regulation of hormone levels in the body.

In summary, hormones and neurohormones are chemical messengers that play a crucial role in regulating various physiological processes in the body. They are secreted by specialized cells, act on specific target cells, and are regulated by feedback mechanisms to maintain homeostasis.