Potassium

Potassium channels (KC) are selective transmembrane proteins that allow K+ ions flow down an electrochemical gradient across cell membrane, thus controlling plasma membrane potential in both excitable and non-excitable cells (Szabo, Zoratti&Gulbins, 2010). Evolutionarily conserved KC family is one of the larges and most diverse of ion channels (Table1). Its diversity comes not only from a large number of genes coding for main subunits (over 80 mammalian genes). Many other processes such as…

Excessive Potassium in the Blood in Cats What is Excessive Potassium? Potassium is an essential electrolyte found in the blood of cats as well as humans. In a cat, potassium helps to regulate several body functions, including muscle contractions, nerve impulses and heart function. Without it, the heart, skeleton, blood pressure and muscles are unable to function properly. Although some potassium is necessary, it is possible for your cat to have too much. This condition is known to…

Potassium hexacyanoferrate (III) complex has octahedron geometry, and the ions are kinetically unstable due to dissociation in the solution. It also has monoclinic and orthorhombic crystals showed only one doublet on the spectrum in phases of high and low temperatures. The compound has photosensitive characteristics, it possesses bioelectric chemical properties, but they are poorly oxidized by common oxidizing reagent. The polytype of K3[Fe(CN)6] are discussed in reference to cobalt salts by…

DISCUSSION 2-Bromoheptane + Potassium TertButoxide The 2-Bromoheptane + Potassium TertButoxide reaction yielded 3 different products: 1-heptene, Cis-2-heptene and Trans-2-heptene. However, the major product constituent was 1-heptene. Because Potassium TertButoxide is a bulky base, steric hindrance prevents it from attacking a hydrogen on a highly substituted carbon. Consequently, the base attacks a hydrogen on the least substituted carbon (primary carbon). In this case, steric hindrance is…

that smaller molecules will travel farther across the agar plate given the same duration of time. Based on the data collected, our hypothesis was proven true. Potassium permanganate has a molar mass of 158 g/mol, methylene blue 319.85 g/mol, and potassium dichromate with 294.185 g/mol. Potassium permanganate diffused the farthest, potassium dichromate second, and methylene blue secured the least distance diffused. As expected, a negative correlation between the size of a molecule and the rate at…

Argon- Potassium (Ar-K) SYSTEM K- 40 is a radioactive and decays to two different daughter products, calcium-40 and argon-40, by two different decay methods (Wiens, 2002). This is not a problem because the production ratio of these two daughter products is precisely known, and is always constant: 11.2% becomes argon-40 and 88.8% becomes calcium-40 (Wiens, 2002). It is possible to date some rocks by the potassium-calcium method, but this is not often done because it is hard to determine how much…

and are therefore contraindicated depending on the patient, patient’s condition, or species. Some drugs may act similarly or differently but have comparable effects and similar purposes. Two drugs used in veterinary patients are Potassium Bromide and Phenobarbital. Potassium bromide (KBr) is classified as a salt while Phenobarbital (Pb) belongs to a group of a type of drugs known as barbiturates. However, both drugs are indicated for the treatment of…

gets into a classroom. The teacher has no choice but to fight them in an attempt to save the students. if the teacher were equipped with a fire extinguisher this would be a much more successful attempt. Fire extinguishers are officially filled with potassium bicarbonate and carbon dioxide (CO2), not immediately deadly, but harmful and disarming. According to the Bureau of land Management the symptoms of concentrated inhalation of CO2 are dizziness, heavy breathing, distorted vision, nausea, and…

solution and a potassium persulfate solution was added, while…

Neuron A (presynaptic neuron) reaches -60mV the sodium and potassium channels in the neuron open at the beginning of the axon. The influx of positive sodium ions into the cell makes the inside of the cell more positive and leaves the outside of the cell more negative. The cell is at rest at -70mV and as it gets more positive, it reaches threshold (gets more excited). This change in electrical potential also excites neighboring sodium and potassium channels to open up in a chain reaction, which…