Microtubule

plaques and neurofibrillary tangles. The neuritic plaques are formed when amyloid precursor proteins are not processed, resulting in toxic amyloid beta proteins, forming to make plaques. Neurofibrillary tangles are formed from the tau protein, a microtubule-binding protein, detaching from neurons to form tangles. Both plaques and tangles contribute to the death of neurons, resulting in the hallmark features of Alzheimer’s disease (McCance & Huether, 2014). These plaques and tangles begin in…

Level 3 Applied Science Unit 11 physiology of Human Body Systems Task 1: ORGANELLE DIAGRAM FORM FUNCTION Nucleolus • The nucleolus is a darker staining region of the nucleus. It is non-membrane bound structure composed of ribonucleic acids (RNA) and proteins. It makes ribosomes inside the nucleus and contains all the DNA of the cell. It is also used for cellular reproduction and it is often referred to as the brain of the cell as it controls what goes on. Golgi…

Mitosis & Meiosis are the two major cell division processes. We know that mitosis is used for fulfilling a body’s cell division requirements. However, meiosis is use solely used for one purpose in a human body. It is used for the production of gametes cells, also known as the sex cells. Mitosis and meiosis are quite similar in processes with very few differences. One of the differences is that mitosis has one division whereas there are two divisions in meiosis. This is the reason meiosis is also…

Cell biology 1. A cell is eukaryotic because  Is generally larger and much more sophisticated than prokaryotic cells due to the presence of a complex series of membranes that divide a typical eukaryotic cell into compartment.  Eukaryotic cell has an organized nucleus with a nuclear envelop.  Has membrane bound organelles  Contain linear DNA molecule that are larger than the (circular) DNA molecules in prokaryotic cells and, in association with proteins, form structures called chromosomes.…

2. The element being described is Sodium its symbol is Na it has an atomic mass of 22.989769. It has an atomic number of 11. This element has 11 protons, 11 protons, and about 11 neutrons. Protons have a positive charge, electrons have a negative charge, and neutron have a neutral charge. Electron shells are the outer parts of an atom containing the electrons. Valence electrons are electrons in the outermost shell. Valence electrons tell us whether an atom shares, transfers or receives electrons…

Alzheimer's disease is the most common type of dementia that affects the central nervous system by causing cognitive problems. Alzheimer’s is a progressive disease, meaning that this disease gets more severe over time. It is estimated that 700,000 people in this country will die from Alzheimer’s this year, making it one of the highest causes of death in America. As of right now, there is no cure; however treatments are available to help reduce the symptoms of this disease. Alzheimer's is most…

• Treatment There are a wide variety of therapeutics options for lymphomas and the election of them is based on the type of lymphoma, the progression of the disease, characteristics of each patient… However, the 3 main therapeutic options are chemotherapy, radiotherapy and immunotherapy. In this part, these and other methods will be analysed. Surgery Surgery has not any relevant role in the treatment of lymphomas13, it just have a role on the diagnosis (obtaining of biopsy material) and…

and L, binds a coreceptor, and the viral envelope fuses with the cell membrane, releasing the capsid and tegument into the host. Tegmental protein VHS disassembles cytosolic ribosomes and digests RNA, thwarting host protein production. Cellular microtubules ferry the capsid to nuclear pores where tegmental proteins facilitate the transfer of viral DNA into the cell nucleus. In the nucleus, the viral dsDNA becomes circular, and is bound by transcription factors OCT1, α-TIF, and C1, which…

The definitive diagnosis of Alzheimer’s can’t be made until autopsy, when neuronal loss, accumulation of beta-amyloid plaques, neurofibrillary tangles and abnormal tau microtubules are observed (Advokat et al., 2014). The current drugs that treat Alzheimer’s act on brain neurotransmitters, but do not alter the course of the disease (Advokat et al., 2014). Some of the drugs for the treatment of Alzheimer’s disease focus…

Organic Acids An organic acid is an organic compound with acidic properties. The most common organic acids are the carboxylic acids, whose acidity is associated with their carboxyl group –COOH. Sulfonic acids, containing the group –SO2OH, are relatively stronger acids. Alcohols, with –OH, can act as acids but they are usually very weak. In general, organic acids are weak acids and do not dissociate completely in water, whereas the strong mineral acids do. Lower molecular mass organic acids such…