Norepinephrine is synthesized from the amino acid tyrosine in the adrenal medulla and postganglionic neurons of the sympathetic nervous system. What is noradrenaline Synthesised from? Norepinephrine is synthesized from dopamine by dopamine β-hydroxylase. It is released from the adrenal medulla into the blood as a hormone, and is also aRead More →
Botulinum antitoxin, also known as botulism antitoxin, is comprised of antibodies or antibody antigen-binding fragments that block the neurotoxin produced by the bacterial species Clostridium botulinum. How antibodies or antitoxins are produced in blood? Antibodies are produced by specialized white blood cells called B lymphocytes (or B cells). When anRead More →
In addition to Talisker, Isle of Skye whisky also is made on the island. It’s a mellower blended whisky, with some Skye malt included in the mix. Is Talisker a good Whisky? Talisker is a great pour. It is peaty but not a peat monster like some of its brethrenRead More →
Rhenium-molybdenum alloys are superconductive at 10 K. Rhenium was discovered in 1925 by Walter Noddack, Ida Noddack-Tacke, and Otto Berg in Germany in platinum ores, such as columbite and tung-state. What is the price of rhenium? Rhenium metal pellet prices averaged $1,000 per kilogram in 2020, a 20% decrease fromRead More →
Ozone is formed when heat and sunlight cause chemical reactions between oxides of nitrogen (NOX ) and Volatile Organic Compounds (VOC), which are also known as Hydrocarbons. This reaction can occur both near the ground and high in the atmosphere. How is ozone produced and what is its function? StratosphericRead More →
1. Microsporogenesis: Microspores are formed from microspore mother cells inside the anther. It is the process of formation of microspores from a pollen mother cell through meiosis division. The cells of sporogenous tissues undergo meiotic division to form microspore tetrad. Is Sporogenous tissue haploid? Hard outer layer of pollen isRead More →
Unlike many other greenhouse gases, fluorinated gases have no natural sources and only come from human-related activities. … There are four main categories of fluorinated gases—hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), sulfur hexafluoride (SF6), and nitrogen trifluoride (NF3). What are the sources of F gases? Stationary refrigeration, air conditioning and heat pumpRead More →
Recombinant human erythropoietins (rHuEPO) are erythropoiesis-stimulating agents (ESA) used in the treatment of anemia resulting from chronic kidney disease, treatments for cancer or HIV infection. They are also used perioperatively in some surgical patients. Is erythropoietin a recombinant protein? Erythropoietin is a humoral factor that stimulates erythropoiesis. EPO has fourRead More →
FSH is synthesized and secreted by the gonadotropic cells of the anterior pituitary gland and regulates the development, growth, pubertal maturation, and reproductive processes of the body. FSH and luteinizing hormone (LH) work together in the reproductive system. What foods increase luteinizing hormone? Salmon, oysters, chia seeds, flaxseeds, and walnutsRead More →
Nikola has since developed two working prototypes of its fuel-cell truck. Five test models of a second truck powered only by batteries have nearly been completed, Mr. Russell said. The battery trucks are on track to go into production by the end of 2021, with fuel-cell trucks following in 2022,Read More →