Cholesterol is a waxy fat-like substance that is produced in the liver.40 Cholesterol is necessary to make hormones such as estrogen and testosterone. It is a key ingredient in cortisol which helps control the inflammation. Cholesterol is necessary for vitamin D production from sunlight. It also helps create bile acids that digests fats. Cholesterol also plays a significant role in the synthesis of cell membranes. Cholesterol is insoluble in water so it needs the transportation facility from a protein to move them around in the body through bloodstream to fulfill their role in the membrane biogenesis. Cholesterol circulates in the bloodstream and enters cells by receptor-mediated endocytosis. Instead of circulating freely, cholesterol molecules
The labia minora are also known as the inner lips of the vulva. Unlike the labia majora, they are hairless. It protects the urinary and vaginal orifice. It also provides protection for the clitoris.
The lab results would have been more accurate if they were based off quantitative properties instead. For instance, if the reaction between catalase and hydrogen peroxide was timed using a stopwatch to see how long the oxygen gas bubbled for, the times could have been compared to obtain a more accurate reaction rate for each reaction. Furthermore, the temperature of the solution after the test tubes were taken out of their respective water baths were not monitored. This could have been a factor that affected the reaction rate of catalase, since the reactions may have not occurred at the same temperature. A thermometer could have been used to measure the temperature of the contents in the test tubes once they were removed from the water baths to ensure that all the reactions took place at the same temperature as the baths they were placed
The concentration of the Amylase was kept at 1% at at times throughout the experiment.
A 19 year old black male patient (Siyabonga Nkosi, from Tembisa) was admitted to SBAH Internal medicine with history of syncope (2 episodes on different occasions), now occurring for the third time, it is associated with loss of consciousness and
Explain how the structure of the plasma membrane influences the movement of oxygen, carbon dioxide, and sodium ions.
Researchers at the University of California, San Diego discovered that stingrays have the same enzymes used by “boneworms” to break down whale carcasses, and help promote photosynthesis in coral. However, this enzyme in stingrays is used to regulate their blood pH. This discovery is leading scientists to get a better understanding of enzyme’s function in human kidneys to regulate blood and urine function.
There are many side effects to taking the contraceptive pill, a.k.a. the birth control pill. including headache, dizziness, breast tenderness, and mood swings. However one mostly unknown side effect, and a very serious one at that, is venous thromboembolism. There are many studies which either discredit or prove that
This process uses platelets and causing a shortage in the rest of their body. This abnormal reaction can be caused by a chemical is not identified but which is produced in the blood plasma (the liquid part of the blood and non-cellular). The trigger events for the hemolytic uremic syndrome are various, the syndrome can then be:
Heart disease- Heart disease is the most common cause of death among people on dialysis. Also, fluid build-up can occur, you may notice a faster heartbeat and swelling that starts in your feet and ankles and moves upward.
Complete the ‘experimental setup’ for the guinea pig ilium experiment as shown in Fig 1. The agonist, acetylcholine is added to the organ bath at a concentration of 1 x 10⁻⁸ M where it will follow the 3 minute cycle. After 30 seconds the results are recorded. After results are recorded, washing of the organ bath and ilium is conducted (note. Called wash out). After 90 seconds a second washout occurs. At 180 seconds the length of the guinea pig ileum is reset to 2cm (note. The aforementioned steps are called the 3 minute cycle). Another dose of acetylcholine is added which follows the 3 minute cycle, however the concentration is increased by 1 x 10⁻⁸ M . This is repeated until the maximum response of acetylcholine
To calculate the concentration of ethanoic acid CH3COOH in vinegar using stoichiometric equations, ( Yamaha brand )
administration of Ginkgo did no longer change systolic blood pressure in WKY, but significantly reduced systolic blood pressure in SHR. In thoracic aortic preparations remoted from SHR, diminished relaxation in reaction to acetylcholine was increased by using a Ginkgo-containing diet. This food plan significantly SHR and WKY . We additionally tested the effects of a Ginkgo-containing did on die intracellular calcium level of aortic endothelium the use of a fluorescent confocal microscopic imaging device. Calcium green 1/AM preloading indicated that acetylcholine significantly accelerated the endothelial intracellular calcium degree. The Ginkgo-containing food plan .extensively improved this increase inside the aortic endothelium of SHR, however did not exchange that of WKY, The effects counseled that Ginkgo superior endothelium-based vasodilation and elevation of the endothelial intracellular Ca (2+) level in SHR, resulting in hypotension. This accelerative impact of Ginkgo on Ca (2+) mobilization appeared to be associated with restoration of impaired dilatory function induced acetylcholine in endothelial
ADH, elaborated by the supraoptic and paraventricular nuclei of the hypothalamus and stored in the posterior pituitary, increases the permeability of the collecting ducts with reabsorption of water from the urine leading to antidiuresis. Factor that stimulate its secretion include
The experimental percent of CH3COOH was calculated at 1.6 x 10^-5, while the actual value was 1.8 x 10^-5. The calculated value is much lower because the pH read from the graph at half of the equivalence was higher than the actual value. To have gotten a 0% error between the experimental and actual value for CH3COOH, the pH would have been measured at about 4.75, which is slightly more acidic than 4.80. The percent error was calculated to determine how accurate the Ka of acetic acid was: