Endoplasmic reticulum

Cell Transport and Permeability: Computer stimulation Jeffery Kirkland A&P Lab Courtney Charba April 17, 2015 Academic Integrity Statement: I affirm that this assignment reflects my own honest work and was completed with integrity according to the course’s academic integrity guidelines. This report is based on my own work and any ideas or words that are not my own are clearly indicated and their sources are correctly cited. Student Signature:…

Question 1A: Compare and contrast the general structure of a virus and a bacterium. Bacteria and viruses both do not contain a DNA enclosing nucleus; however, these organisms differ greatly in the complexity of their structures. Generally a bacterium is encompassed within a semi-rigid cell wall made of peptidoglycan, which provides structural support. It is classified as gram positive if its cell wall is thick and stains purple when tested for identification. If its cell wall is thin and stains…

Ubiquitin-conjugating partners of CHIP: In section 3, after " fate of substrates": E2’s are the family of enzymes, having highly conserved ubiquitin conjugating domains. These enzymes, in combination with E3s, play an important role in determining the fate of substrate proteins by selecting a lysine residue on which ubiquitin moiety must be added. In section 3, after Murata, et al. 2003: An in vitro study has shown that CHIP, with the aid of UbcH5 and UbcH6, two other E2s, can efficiently…

All cells are derived from pre-existing cells - through the process of meiosis and mitosis 4. In a multicellular organism, the activity of the entire organism depends on the total activity of its independent cells 3 Significance of technological advances to developments in the cell theory Assess the impact of technology including the development of the microscope on the development of the cell theory The development of cell theory has been heavily impacted by the improvement of technology. The…

1. Introduction This illustrated report will be concentrating on the digestive system and the detail of digestion, including mechanical and chemical digestion, extracellular and intracellular digestion. It will highlight how enzymes work within the digestive system, which ones and where they are produced. It will show the importance of metabolism and its two categories anabolism and catabolism, there will also be an illustration of how nutrients are processed during anabolism and catabolism. It…

The phagosome will then fuse with a lysosome to form the phagolysosome. The lysosomes are the cell’s digestive organelles (Karp 303). The lysosome contains at least 50 different hydrolytic enzymes (hydrolytic enzymes are produced in the endoplasmic reticulum, and are transported to the lysosome) and lysosmal enzymes (Karp 303). These two enzymes together can break almost all macromolecules (Karp 303). In this mechanism the particle that was ingested is degraded (Gray). The…

which makes up a lot of the body of a cell and is where many chemical reactions take place. Mitochondria: The site of cellular respiration where glucose is broken down using oxygen to release energy, which needed for reactions in the cell. Endoplasmic reticulum: a network of membranous tubules within the cytoplasm of a eukaryotic cell, continuous with the nuclear membrane. It usually has ribosomes attached and is involved in protein and lipid synthesis Ribosomes: small structures in the…

molecule that acts as a potential nucleophile (Verheij et al., 1980; Scott et al., 1990; Pickard et al., 1996). Majority of eukaryotic sPLA2 also have an N terminal signal peptide for secretion that is cleaved upon internalization into the endoplasmic reticulum or into the periplasm as in bacteria (Dennis et al., 2011; Cavazzini et al., 2013). Based on structural and functional properties, sPLA2 has been grouped into classes I, II, III, V, IX to XIII while cPLA2 is included in the remaining…

Figure 1: Shows the gene expression changes found in Arabidopsis after the insertion of the IRX1, IRX3, and IRX5 mutants(Brown). 1A shows the principal component data collected from the targeted areas of the plant(Brown). 1B shows a comparison of gene expression of the base and tip of the stem and the change of level(Brown). 1C shows the slope of genes most likely to be related to IRX3(Brown). From Figure 1B, it is shown through analysis that there are several hundred genes that show an increase…

1.0 Introduction – What is diabetes Mellitus? Diabetes mellitus is a progressive disorder of chronic hyperglycaemia due to insulin deficiency or resistance and in some cases both which affects people of all ages. The chronic hyperglycaemia causes a range of macro- and microvascular complications. Macrovascular damage leads to increased prevalence of heart disease, stroke and peripheral vascular disease whereas microvascular complications can cause diabetic retinopathy, neuropathy and…