and glycine migrated larger distance on the TLC place and their Rf values are bigger compared to those of glutamic acid and lysine because the Rf value of leucine is 0,57 and Rf for glycine is 0,40. According to Lade etl (2014) the compound that have high polarity will have stronger affinity of binding to the polar stationary phase and therefore this means the polar molecules travel smaller distances on the TLC plate and non-polar molecules travel larger distances. The Rf values of the unknown…
Plant cells are eukaryotic cells, or cells with a membrane-bound nucleus. Unlike prokaryotic cells, the DNA in a plant cell is housed within the nucleus. In addition to having a nucleus, plant cells also contain other membrane-bound organelles, or tiny cellular structures, that carry out specific functions necessary for normal cellular operation. Organelles have a wide range of responsibilities that include everything from producing hormones and enzymes to providing energy for a plant cell.…
targeted to the skin but instead an antihistamine used to prevent balance related sickness, this might suggest why the use of the alternative lipid, DSPC, gave better results. For sample CIN14, (Table 8) that no cholesterol was used, observed the formation of crystals rather than functional liposomes and the most extreme drop in EE% of 28.33% (from 35.55% to 7.00%). This emphasises the requirement for some degree of fluidity for a membrane to be functional. As the presence of cholesterol is…
About 20% volume of the mammalian central nervous system comprises of an extracellular matrix that includes proteins, proteoglycans, and glycosaminoglycans (Bignami A et.al 1993). Evolving evidence indicates that the organization and composition of this matrix change throughout the course of normal aging, during neurodegenerative diseases and following central nervous system injury and that these modifications influence a diverse range of cellular behaviors. The central nervous system…
and thymine held by two H- bonds. The transcription of eukaryotic cells gets carried from the nucleus and proceeds in three stages: initiation, elongation, and termination. Eukaryotic genes are not regulated by operons, but they do have DNA binding proteins. Cell division in eukaryotes is more complex than prokaryotes. When eukaryotic cell divides it occurs in two steps: mitosis and cytokinesis. During mitosis, the nuclear membrane breaks down and reforms. The chromosomes also separate to where…
six feet of DNA which is tightly packed and highly organized by proteins, the majority of it stored in the nucleus [1]. With this DNA, the nucleus produces needed proteins which are then used for cell growth, reproduction, and the overall functioning of the cell [2]. Furthermore, the nucleus is bound by a double layer membrane called the nuclear envelope. Similar to the plasma membrane, the…
Temporal analysis of gene expression in the embryonic murine Schwann cell lineage 1Anjali Balakrishnan, 2Morgan G. Stykel, 1,2Yacine Touahri, 2*Jeff Biernaskie, 1*Carol Schuurmans Institutional Affiliations: 1Department of Biochemistry and Molecular Biology in the Cumming School of Medicine, 2Department of Comparative Biology and Experimental Medicine in the Faculty of Veterinary Medicine, both in the Alberta Children’s Hospital Research Institute and Hotchkiss Brain Institute, University of…
Transcription is the process in which DNA is converted to RNA. Ribonucleic Acid (RNA) is a polymeric molecule. RNA is involved in protein synthesis, and it is sometimes even in the transmission of genetic information. The main job of RNA is to transfer genetic information that is needed for the creation of proteins from the nucleus to the ribosome. Without RNA proteins could never be made (News-Medical). Transcription is the process of making an RNA copy of gene sequences. This particular copy…
It is expected that if the concentration of sucrose increases from 0.0 M, 0.2 M, 0.4 M, 0.6 M and 0.8 M (±0.01 g) in a 40 (±0.5) mL sucrose solution, then the average percent change in mass in Solanum tuberosum core will decrease. This is because if the Solanum tuberosum cores are placed in a hypotonic sucrose solution, which is described as having lower osmolarity, than the percent change in mass of the Solanum tuberosum core will increase due to the fact that water molecules will be moving…
is a part of a series of connected 'hallways' that carry materials to various parts of the cytoplasm. The RER has many ribosomes attached to it and it is tasked with creating proteins. The Smooth Endoplasmic Reticulum(SER) is also a part of connected 'hallways that transport materials. However, instead of creating proteins, it has no ribosomes and it instead is the place where lipids…