AP BIOLOGY

Detailed explanation-1: -What is an organic compound that is made by glands in the body ( pituitary, thyroid, etc.) that is used in long distance communication between cells? Ligand-receptor complexes are most often formed in cell communication pathways in which participating cells are in direct contact.

Detailed explanation-2: -The cells in these glands secrete specific chemicals called hormones. Hormones circulate around the body via the blood stream and modulate cellular or organ functions by binding with receptors in the target cells. Hormones that stimulate and control the activity of other endocrine glands are called trophic hormones.

Detailed explanation-3: -hormone, organic substance secreted by plants and animals that functions in the regulation of physiological activities and in maintaining homeostasis.

Detailed explanation-4: -Hormone is a chemical substance, secreted by endocrine gland, carried by the blood, which alters the activity of one or more specific target organs and is then destroyed by the liver.

Detailed explanation-5: -The hormones created and released by the glands in your body’s endocrine system control nearly all the processes in your body. These chemicals help coordinate your body’s functions, from metabolism to growth and development, emotions, mood, sexual function and even sleep.