Essays on Endoplasmic Reticulum

{Author Name [first-name middle-name-initials last-name]} {Institution Affiliation [name of Author’s institute]} A cell is a form of the miniature factory that encloses a distinct chemical system that is involved in structural maintenance, homeostasis, energy generation and reproduction. Every organism is made of these structural living units. The cell divides and produces more cells and assists in the growth of the organism. There are two types of cells, eukaryotic and prokaryotic. Eukaryotic cells are characterised by a membrane-bound nucleus enclosing the genetic material. The Eukaryotic cells can be divided into three main parts, plasma membrane, cytoplasm, and nucleus (Cooper & ...

Biology Assignment

- Cellular respiration is the metabolic process through which glucose is broken down in the cells to produce energy in the form of ATP. Anaerobic respiration or glycolysis is the anaerobic breakdown of glucose into ATP, which requires no oxygen. This process involves removal of hydrogen and electrons from glucose to generate NADH, pyruvate and energy equivalent to two molecules of ATP. In the absence of oxygen pyruvate undergoes fermentation, whereas in the presence of oxygen, pyruvate is siphoned into the mitochondria and is completely broken down. The citric acid cycle occurs in the matrix of the mitochondria and ...

Eukaryotes are organisms that made up of cells that have a have a nucleus that is bound by a membrane. They also have membrane bound organelles. Prokaryotes are organisms whose cells do not have a nucleus or any membrane-encased organelles.

Similarities

Both prokaryotes and eukaryotes have DNA as their genetic composition or material. Secondly, both cells are membrane bound. They both have ribosomes. They have nearly the same basic metabolism. Both cells have vacuoles. Lastly, the two cells both have vesicles.

Differences

Eukaryote cells have a nucleus while the prokaryote cells lack a nucleus. Eukaryotes have a true membrane binding the nucleus in the cell, while the prokaryote ...

Von Gierke Disease

Introduction Von Gierke disease or Glycogen Storage Disease Type 1 (GSD-1) belongs to a group of rare metabolic disorders with a reported incidence of 1 case per 100,000 births per year. The clinical condition results from deficiency of key enzymes in the glycolytic pathway resulting in an increase in intermediate metabolites and accumulation of glycogen in the affected tissues. It is a genetic disorder with a natural history of severe developmental abnormalities and long term complications. This paper provides an overview of GSD-1 based on studies published in peer reviewed journals with a focus on its genetic determinants, clinical picture, available therapeutic ...

The title and abstract suggest that the paper is an attempt to show that in the cartilage growth plate, abnormal chondrocyte apoptosis is influenced by genetic background as well as deletion of CHOP. The research is interesting because it enables the discovery of whether whether the abnormal chondrocyte apoptosis that is seen in the mutant mice growth plate is CHOP-mediated. The research builds on the research done by Delot, King, Briggs, Wilcox & Cohn (1999) and Hecht et al. (2001), who demonstrate that type 3 recurring mutations are responsible for most of the Pseudoachondroplasia (PSACH) cases, which are believed to ...

Introduction

Malaria is major life threatening disease, transmitted through mosquitoes and caused by parasites. Plasmodium virus causes malaria in humans. A recent study and WHO Statistics revealed that around 625,000 individuals died because of Malaria in the year 2012. Malaria has affected more than 200 million people in over 75 countries in the past 50 years. The sub-Saharan Africa covering to about 50% of malarial cases alone. DDT (dichlorodiphenyltrichloroethane) was introduced in the year 1874. The insecticidal properties of DDT was discovered in the year 1935 and has been used worldwide ever since. Many early studies had revealed the ...

Discussion of the Dynamics of Endoplasmic Reticulum And Mitochondria

Introduction The Endoplasmic Reticulum (ER) of an organism forms an interconnected membrane network that extends from the outermost nuclear to the periphery cell wall. Mitochondria are a group of cell organelles that undergo fusion and fission at a constant rate. . In plants, daily regulation of energy is important for optimal growth thus mitochondria are important for integral regulation of the cellular responses for the survival of the plant. . In this paper, we are going to discuss the dynamics of ER and the mitochondria in plants by looking at the importance of Lat.B, AA and MV regulation energy in treated and ...

George Emil Palade was a highly esteemed and a well renowned cell biologist of Romanian origin. He was born in 1912, in Moldavia, Romania. In 1974, he won the Nobel Prize in Physiology and Medicine for his pioneering work in Molecular biology. He shares this award along with Albert Claude and Christian de Duve. He was referred to as the "father of modern biology" and "the most influential cell biologist ever" for his innovative contribution to the field of cell biology. While he was a medical student, he was invited by Albert Claude, the noble-winning biologist from the Rockfeller University who ...

Webliography

Web Address: http://evolution.about.com/od/Overview/a/Types-Of-Cells.htm Description: According to this we bite, a cell is a basic unit of living organisms. All living organisms have cells. While others are simple unicellular, others are made up of many cells. There are basically two distinct types of cells: prokaryotic and eukaryotic cells. They are fond in different types or organisms. Each type of cell is made up of different organelles. These are specialized in performing different roles. Basically, prokaryotic are the simplest group of cells on earth. Unlike the eukaryotic cells, they are found in single celled organisms such as bacteria and amoeba. These are ...

1.0 Mitochondria in eukaryotic cells Organelles are special compartments surrounded by a bilipid membrane which separates them from the rest of the cell which carry out specific functions. An example of an organelle is the mitochondria which are known to be the “powerhouse of the cell.” They have their own genome (mtDNA) and are semiautonomous. They are said to have evolved from a free α proteobacterium like organism (Takasugi, Yagi, et al., 2010). The word mitochondria is derived from two Greek words: “mitos” which means thread and “chondros” which means “grain”. These two words offer an apt description of the morphology ...

The experiment essentially investigates the association between endoplasmic reticulum and mitochondria.

Introduction

Mitochondrion is a cell organelle, which moves along actin filaments. They are also calcium storage sites in the cell. The positioning and movement is influenced by membrane-cytoskeleton interactions. Reports suggest that the release of calcium from mitochondria and endoplasmic reticulum is influenced by structural changes in microtubules.

Materials used.

1. YFP-HDEL/atp-mito-CFP line. 2. 2μM Latrunculin-B 3. Ethanol control. 4. Arabidopsis Sail359/Aequroin line expressing atp-GFP-Aequorin.

Procedure

Actin depolymerization affects mitochondrial clustering and movements. In the experiment, YFP-HDEL/ atp-mito-CFP line was treated with 2μM lat-B for 3 hours and ...

Mitochondria and Endoplasmic Reticulum

Literature Review

Literature Review - Interactions Between Mitochondria and Endoplasmic Reticulum and Mitochondria Calcium Dynamics The interactions between mitochondria and endoplasmic reticulum in plants have great significance in the ability of the plant to self regulate, grow well and even fight off toxins. Calcium is very important for strengthening cell walls (Holdaway & Helper, 2003). The dynamic of calcium up-take has been studied since the 1800s due to the importance calcium has as a regulator for successful growth and development of plants (Hepler, 2005). The intricacies of the part Calcium plays in intracellular reactions which regulate growth and development ...