The chemical responses of metabolism are systemized into metabolic pathways, in which one chemical is commuted another by a series of enzymes. Enzymes are very important to metabolism and let the fine managing of metabolic pathways to keep a fixed set of circumstances in answer to changes in the cells environment, this procedure is known as homeostasis. Cellular metabolism contains 2 different parts which …show more content…
There are two types of cellular respiration; aerobic respiration and anaerobic respiration.
Aerobic and anaerobic respirations both involve chemical reaction which takes place in the cell to produce energy. Aerobic respiration (presence of oxygen): it takes place in the mitochondria and requires glucose and oxygen produces energy (ATP), waste (water + carbon dioxide) and heat. Anaerobic respiration (absence of oxygen): it takes place in the cell cytoplasm and produces glucose which produces energy and waste (lactic acid).
Digestive system participates by assimilating and consuming the vital nutriments later utilised in cellular respiration. Respiratory systems participate by airing the lung and assisting the progress of gas exchange and avail oxygen for aerobic respiration to create energy. Excretory system contributes by annihilating the waste products of metabolism. Circulatory system combines with each system mentioned previously in order to facilitate cellular …show more content…
Growth hormone is produced by the anterior pituitary gland, the front section of the gland and has 191 amino acids. There are two different effects of growth hormone; direct and indirect effects. The direct effect of growth hormone is when the hormone acts on specific receptors present on cells. Fat cells referred to as adipocytes have receptors which stimulates growth hormone to break down triglyceride. The hormones also prevent these receptors from taking up circulating lipids. The indirect effects are mediated by the effect of growth hormone on another hormone secreted by the liver called insulin-like growth factor-1 (IGF-1). The secretion of IGF-1 has a range of growth promoting effects when it acts on cellular targets.
Growth hormones stimulate the growth of essentially all tissues of the body, including bones. It is synthesized and secreted by anterior pituitary cells. It stimulates protein synthesis and increases fat breakdown to provide the energy necessary for tissue growth. It also opposes the action of