How Glucagon Is The Other Hormone Produced By The Islets...

Glucagon is the other hormone produced by the Islets of Langerhans. This hormone is produced by the alpha cells in the islets, which detect when blood sugar levels are too low (around 70 mg/dL) and respond by releasing glucagon. Glucagon stimulates the breakdown of stored glycogen into glucose through a process called glycogenolysis, and releases the glucose back into the bloodstream, thus raising blood sugar levels to a higher concentration. As blood glucose levels return to its equilibrium, the concentration of glucagon lowers until the time when glucose levels rise again. In reaction to this, insulin levels rise and fall with the levels of blood glucose concentration. In the case of the Rainbow Rage biker, assuming that they continue for an extended period without food, more and more glycogen is broken down by glucagon. In this case, if all carbohydrates, glucose, and stores of glycogen are depleted, the body will go into ketosis. Ketosis is the breakdown of fats stored in adipose tissue into ATP, by breaking down the triglycerides into glycerol and fatty acids. Further breakdown, called beta-oxidation, which turns the three fatty acid chains in the triglycerides into acetyl-CoA, can then be used to produce ATP through the Krebs cycle. However, these triglycerides are unable to be used as fuel for certain tissues like the brain because of the high selective permeability of the blood-brain barrier. Instead, the brain relies on ketones for energy, which are created by theShow MoreRelatedHomeostasis Biology 91604 (3.4B). †¢Describe The Purpose1604 Words   |  7 Pagesor below approximately 5 mM, the sensor will be able to inform the rest of th e body. The controller releases the appropriate hormones needed to control the blood sugar levels, Hormones are the chemical messages that are produced when the controller is told that the blood glucose level is too high or too low, depending on this, the hormones produced can either be glucagon (to raise blood glucose) or insulin (to lower blood glucose). Insulin is the ‘key’ to unlocking cells to let the glucose in. AnRead MoreGlucose Regulation And Its Disruption Essay1810 Words   |  8 Pagesconsciousness, and death. On the other hand, long lasting elevation of blood glucose concentrations, can result in blindness, renal failure, vascular disease, and neuropathy. Therefore, blood glucose concentrations need to be maintained within narrow limits. 2.1 How is this regulated? The homeostatic system that controls the blood glucose levels in humans is controlled by the endocrine system using negative feedback. An endocrine system is a response system that uses hormones in the blood to transmit messagesRead MoreApply Principles Of Diabetic Nursing Care Essay1621 Words   |  7 Pagesprinciples of Diabetic nursing care Anitha Kannan Assessment Task One Part A Terminology Discuss the following terms in at least fifty (50) words. a) Acromegaly (1mark) Acromegaly is a hormonal disorder that is caused by the manifestation of growth hormone (GH) by the pituitary gland occurring in adulthood usually from a benign tumour inside the gland. It is characterised by the gradual enlargement of the hands, feet, tongue and prominent features of the face with an enlarged lower jaw, bulging foreheadRead MoreHow An Animal Maintains A Stable Internal Environment2059 Words   |  9 Pages91604 Demonstrate understanding of how an animal maintains a stable internal environment Homeostasis is the ability to preserve a dynamic stable internal environment factor and to set the correct operative mechanisms to restore the factor back to the optimum level. There are many types of stable internal environment factors that the body has to maintain in order to function correctly that includes thermoregulation, osmotic control and blood sugar regulation. How the athlete’s body manages to keepRead MoreHomeostasis : Homeostasis And Homeostasis2417 Words   |  10 Pagesbrain. The sensor sends a signal to the controller; which is in charge of the effector. Once the controller has been given a signal it will either switch the effector on or off depending on what is required and the effector will generally secrete a hormone to change the state of the internal environment. The output will be the changes that have taken place. After this there is a mechanism called negative feedback, negative feedback is a vital part of homeostasis as it reverses the original change s thatRead MoreHomeostasis : Homeostasis And Homeostasis1923 Words   |  8 Pagesbrain. The sensor sends a signal to the controller; which is in charge of the effector. Once the controller has been given a signal it will either switch the effector on or off depending on what is required and the effector will generally secrete a hormone to change the state of the internal environment. The output will be the changes that have taken place. After this there is a mechanism called negative feedback, negative feedback is a vital part of homeostasis as it reverses the original changes thatRead MoreThe Mechanism of Negative Feedback Essay1516 Words   |  7 Pagesto its normal condition. The internal environment can by controlled by hormones. Hormones are chemical substances secreted into bloodstream by glands of the endocrine system. In humans, more than a dozen tissues and organs produce hormones. Some, including the pituitary, the thyroid, the parathyroid glands and adrenal glands are endocrine specialists; their function is to secrete one or more hormones. The endocrine system maintains homeostasis, the balance of the body,Read MoreEndocrine vs. Nervous System2686 Words   |  11 Pagescells to communicate with others by using chemical messengers. The endocrine system uses chemical messengers called hormones that are transported by the circulatory system (blood). They act on target cells that may be anywhere in the body. The endocrine system is slower than the nervous system because hormones must travel through the circulatory system to reach their target. Target cells have receptors that are specific to the signaling molecules. The binding of hormones to the receptors on or withinRead MoreCellular Metabolism Of Drugs : Insulin853 Words   |  4 Pagesproduction in the beta cells of the body. Generally speaking, most people are familiar with the term insulin and its dealings with diabetes. However, the amount of knowledge on how it works in the body is limited. Insulin is one of the most important hormones in the body for several reasons. The lack of or the excess of this hormone could potentially effect the body at detrimental rates. Every living cell in the body requires energy for survival. Typically, energy is stored in the form of ATP (AdenosineRead MoreDiabetes : Diabetes And Type Two Diabetes1688 Words   |  7 Pagesinsufficient amounts of insulin are produced or no insulin at all. Type one diabetes is also referred to as insulin dependent diabetes because people diagnosed with this type of diabetes are required to administer insulin injections into themselves. The possible causes for type one diabetes are linked to genetics or environmental circumstances. The possible genetic inheritance of type one diabetes is strongly linked with HLA-DQ and DR on chromosome 6, but genetic factors on other chromosomes such as the insulin