Endoplasmic reticulum

proteins and only one variety of RNA called ribosomal RNA. Ribosomes are site of protein synthesis. Some float free in the cytoplasm where they make more proteins that function in the cytoplasm. Other attach to membrane which results in the name rough endoplasmic…

Lipids are fatty acids and their derivatives, and substances related biosynthetically or functionally to these compounds. Lipids are diverse group of organic compounds including fats, oils, hormones, and certain components of membranes that are grouped together and mainly amphipathic. The variation in head groups and aliphatic chains allows the presence of more than 1000 different lipid species in any eukaryotic cell. Different types of lipid include Phospholipids, Sphingolipids and Cholesterol…

In 1906, Alois Alzheimer described the pathological features of presenile dementia. He noted the presence of military foci (Plaques) and fibrils in the brain of one of his cases, although he was not the first to describe the clinical features nor was he the first to describe the plaques. He was, however, the first to describe the fibrils. This disease was named after him by his senior colleague because of his statement that he was describing a new disease entity. (Hardy 2006).…

Ca2+ ion concentration in the heart is sarcoplasmic/endoplasmic reticulum Ca2+ ATPase (SERCA). The dominant form of this gene in myocardial tissue is SERCA2a, and it is responsible for removing around 75% of the Ca2+ ions from the cytosol of muscle cells in the heart. SERCA2a acts like a pump that sits on the edge of the sarcoplasmic reticulum and protrudes out into the cytoplasm of the cell (Hajjar & Njeim, 2010). The sarcoplasmic reticulum (SR) is an organelle that is unique to muscle cells…

Peroxisomes serve to produce hydrogen peroxide through oxidation, as well as break it down by converting it to water, or using the hydrogen peroxide to oxidize other organic compounds. They also produce energy by metabolizing fatty acids (Cooper, 2000). Peroxisomes execute various metabolic functions and create hydrogen peroxide as a byproduct from the process of oxidation. However, since the hydrogen peroxide created by the peroxisome is toxic, the organelle also produces an enzyme called…

I. The most basic unit of life is the cell. All living things are composed of cells. Cells may only from through a process of division and replication of previously existing cells. Cells are microscopic; however their structure is complex. All types of cells possess a plasma membrane which separates its contents from its surroundings. . There are two types of cells: prokaryotic and eukaryotic. a. Prokaryotic cells are simpler than eukaryotic cells. Within prokaryotic cells are bacteria cells…

soluble in water. Smooth E.R. also have the interesting ability to double their surface area in case of heavy assault from toxic chemicals, allowing them to convert them faster. They revert to normal size after the assault has concluded. Smooth Endoplasmic…

start lecturing in classes. In the second approach of mine, they will wonder what will come next and it will keep them awake. I will bring examples about real life, for example, vacuole: Storage food, water refrigerator; Mitochondria: Battery; Endoplasmic Reticulum transport system within cell Truck transport people, Lysosomes, stomach etc. I request similar examples for the students'. This technique helps to students clarify organelles functions and compare of the real life. In order to make it…

Transports to different locations. The Golgi receives vesicle from the rough and smooth ER and then make new ones to be transferred to the cell membrane. Endoplasmic Reticulum sends vesicles to the Golgi and this is why it like the spaceship because the spaces ship has something called Thermal control sector, this sector keeps the spaceship in normal temperature.It keeps it this way by sending some kind of wave…

membrane damage. Pathological processes that interfere with the production of ATP may interfere with sodium pump activity, which in turn results in decreased cellular function. The cellular sites for free radical generation include mitochondria, endoplasmic reticulum and plasma membrane. It has been hypothesized that oxidative damage of membrane bound ATPase activity is crucial for mitochondrial…