There are several key hormones that play important roles in the body:
Estrogen: This hormone is primarily associated with the development of female sexual characteristics and the regulation of the female reproductive system.
Testosterone: Known as the male sex hormone, testosterone is responsible for the development of male reproductive tissues and the maintenance of male secondary sexual characteristics.
Insulin: Insulin helps regulate blood sugar levels and facilitates the uptake of glucose by cells for energy production.
Thyroidhormones: These hormones, including thyroxine (T4) and triiodothyronine (T3), regulate metabolism and influence growth and development.
Adrenaline (epinephrine) and noradrenaline (norepinephrine): These hormones are involved in the body's "fight or flight" response, increasing heart rate and mobilizing energy in times of stress.
Progesterone: Progesterone plays a key role in the menstrual cycle and pregnancy, as well as in the development of the mammary glands.
Functions of Hormonal Factors
Hormonal factors have a wide range of functions in the body, including:
The Living Environment: Students understand that cells are the basic unit of life, that all life as we know it has evolved through genetic transfer and natural selection to create a great diversity of organisms, and that these organisms create interdependent webs through which matter and energy flow. Students understand similarities and differences between humans and other organisms and the interconnections of these interdependent webs.
Cells: Students describe how living things are made up of one or more cells and the ways cells help organisms meet their basic needs.
Give examples of organisms that consist of a single cell and organisms that are made of a collection of cells.