Tag: hormones

Prostaglandin is a non-steroidal hormone while estradiol, estrone, and progestrone are all steroidal hormones

Option (B) is incorrect. Enzymes are efficient and biological catalysts which are needed only in very small amounts for their action but each enzyme can catalyse only a specific selective reactions. This is often referred to as "the lock and key" model.

The chemical messengers produced in ductless glands are called hormones. Hormones are produced by the endocrine system (composed of glands) but are transported to different parts of the body through the bloodstream.

Hormones acts as stimulator. Hormones are essential for every activity of life, including the processes of digestion, metabolism, growth, reproduction, and mood control. Many hormones, such as neurotransmitters, are active in more than one physical process. To release active hormones quickly into the irulation, hormone biosynthetic cells may produce and store biologically inactive hormones in the form of pre- or prohormones. These can then be quickly converted into their active hormone form in response to a particular stimulus.

The term hormone was first introduced by Baylers and Starling. Hormones are your body's chemical messengers. They travel in your bloodstream to tissues or organs. They work slowly, over time, and affect many different processes, including growth and development, metabolism - how your body gets energy from the foods you eat, sexual function, reproduction, mood.

Ethylene gas is used for artificial ripening of fruits. Ethylene is also an important natural plant hormone, used to induce ripening process under controlled conditions of temperature. Ethylene treatment breaks down the green chlorophyll pigment in the exterior part of the peel and allows the yellow or orange carotenoid pigments to be expressed.

Homeostasis is the maintenance of constant internal environment.
Adrenaline is an emergency hormone. It increases pulse rate, blood pressure during emergency and stimulates the breaking of liver glycogen into blood glucose.
Thyroxine is useful in metabolism. Insulin is secreted from thyroid gland. It regulates general growth and development and controls carbohydrate, lipid and protein metabolism.
Peptide hormones such as insulin, affect the properties of plasma membrane.
Insulin is secreted in pancreatic islets. It controls carbohydrate metabolism and maintains glucose level in the blood.
Sanger represents the structure of insulin.

• Cortisol is type glucocorticoid hormone, cortisol (glucocorticoid) also called as life-saving hormone as it increases the blood glucose level in the condition of tension through gluconeogenesis, 
• In the condition of tension the glucose consumption from neuron increases that can be fatal for one.

Hormones are used to communicate between the organs of the body. The release of parathyroid hormone causes blood phosphate level to decrease. When blood calcium level is low, this hormone is released so that the level comes back to normal. Increased level of PTH may lead to joint pains, muscles weakness and many more effects.

• Male and female hormones or the gonadotropin-releasing hormones have almost the same functions, they induce the primary and secondary sexual characteristics

• steroid type of hormones play a role in the physiological effect on the body,

• Growth type of hormones affects physical appearance.