Cell site

Eukaryotic and Prokaryotic cell components by FATIMA MOHIDIN Eukaryotic Cell Eukaryotic cells are cells that contain a nucleus and have membrane bound organelles they are multicellular cells and undertake reproduction by the process cell division known as meiosis and mitosis. There are 2 types of eukaryotic cell: plant and animal cells. They contain organelles such ribosomes, smooth and rough endoplasmic reticulum, mitochondria, nucleolus, centrioles, cell membrane, flagella, cilia,…

amino acids from transfer RNA that match each codon. By having two separate units it keeps the mRNA secure which allows for accurate reading. New amino acids are brought into site A, and then joined via a peptide bond to the growing polypeptide chain held in site P. After the amino acid has joined, the tRNA leaves via the exit site (E). Once the mRNA strand has been read, the subunits separate again. The chain that is created is then released either into the cytoplasm or directly into the…

know, bacterial cells have cell walls containing peptidoglycan. When bacteria divide, holes actually appear in their cell walls that must be filled with peptidoglycan. However, penicillin inhibits proteins that are needed to link the peptidoglycan together. So when bacterial cells try to divide when penicillin is present, the holes in the cell wall cannot be filled in with peptidoglycan. The bacterial cell will eventually burst as solutes from the environment rush into the cell through these…

The Film, Half Life: A Parable for the Nuclear Age is written and directed by Dennis OʻRourke. The film was released in 1986 and won the Peace Film Award in Berlin later that year. The film gives a well-balanced insight on the impacts on the indigenous communities from the Castle Bravo nuclear testing of 1954, in the Marshal Islands. The film shows multiple perspectives of the event from personal accounts of the indigenous people, to military personal, and even US political leaders. Declassified…

A lifeless mother suffers a heroin overdose. She lays comatose amid the aisle of a Massachusetts Family Dollar, and the morose ululation of her daughter erupted upon social media, for a bystander recorded the distressing incident. A hopeful young man, one week following his rehabilitation discharge, died inside of his Colorado home, allegedly overdosing on a fatal sedative and opioid overdose. (The Opioid Crisis, Peter Katel). The heroin and opioid crisis continually fluctuates within the United…

Healthcare Problem The topic under discussion here is should healthcare professionals continue to aspirate during intramuscular (IM) injections. Administering injections is a basic nursing activity and can be a great source of anxiety for the individual on the receiving end. Can we change that or help to relieve the pain and anxiety by changing our practice? Aspirating during IM injection leads to increased duration of injection time. Does this lead to more pain and anxiety? And will we be able…

One environmental issues posted on the Facebook group on Ecologically Conscious Social is climate change’s effect impacts on the Great Barrier Reef where is one of the UNESCO world heritage sites. The Great Barrier Reef is located in Queensland, state of Australia. A concern raised by a group of environmentalists over a threat to the Great Barrier Reef is carbon dioxide (CO2) emissions that emit from burning of coal. The federation government environment minister, Mr. Greg Hunt approved a 16.5…

Britain is not only famous as the land of mist & fog but also known as the land of magnificent castles from ancient times. Castle in England have striking architecture, however they mesmerize all visitors by the romantic and poetic beauty. Today, those beautiful castles as in fairy tales have become wonders and attract many travelers around the world. Warwick castle is considered as the most magnificent castle of medieval times in the UK. It is also one of local attractions which attract most…

CELL SIGNALING AND CELL TRANSDUCTION INTRODUCTION: In this lecture, we will study about cell signaling and signal transduction. Each cell in a multicellular animal is bombarded with chemical signals that are made by other cells and this is how communication occurs at cells level by different signaling molecule. Signals that regulate cell metabolism, alter or maintain its differentiated state, determine whether it should divide, and dictate whether it will live or die. The word “signals” in…

resorption, tumor cell invasion, and pH homeostasis. There has been a better understanding of the structure and mechanism of V-ATPases. Another thing brought to light, are the mechanisms that occur to regulate its activity in cells. This includes the V¬1 and V0 domain assembly and the regulation of the V-ATPases. The final section of the journal focuses on emerging functions which includes its involvement in cancer and cell signaling. V-ATPases are proton pumps present within…