Molecular Biology Essay Examples

Are viruses living or nonliving? Scientist all over are debating whether or not a virus is in fact a living organism. There are many different opinions about this touchy topic from many different scientists. My job was to read through all of these different opinions and decided which side I agreed with. Do I think […]

Statement Of Purpose dakumar Vijaya M. S Bioengineering “Science is simply commonsense at it’s best that is, rigidly accurate in observation and merciless to fallacy in logic. ” Science has always been my fascination right from my childhood, and I was keen to continue my academic pursuit in this field to turn out my interests […]

Induced fit theory is a variation of the lock-and-key theory of enzymatic function. It is proposed that the substrate causes a conformational change in the enzyme such that the active site achieves the exact configuration required for a reaction to occur. The overall effect would be a tighter binding for the substrate and enzyme. Think […]

The Spot-Overlay Ames Test was used in the lab to find the mutagenesis of Diet Coke and ThermaFlu. Along with these substances three mutant strains of salmonella were also tested. TA 1535, TA 1537, TA 1538 all lacked the ability to grow the amino acid histidine unless reverted back by the potential mutagens. After the […]

Abstract The purpose of this experiment was to study the transfer of genetic information on plasmid F’lac by using Escherichia coli. Plasmid transfer was measured by using two different methods. The first one was by using selection and contraselection with three antibiotics: streptomycin(which was replaced by naladixic acid for the second part of the experiment), […]

The Cell membrane surrounds all living cells and is the most important organelle, there is also a similar plasma membrane that surrounds all the organelles except for the ribosome. The membrane controls how and what substances can move in and out of the cell/organelle The structure of the membrane is often referred to as the […]

Discovered in 1953, Oligomycin is a deadly antibody produced by the gram-positive streptomyce bacterial clan. It stops oxidative phosphorylation within mitochondria, ultimately leading to human death. The movement of protons is stopped by the Oligomycin complex through altering the active sites and proton-bearing sites of the polypeptide chain. This modification creates non-covalent, irreversible, polar, and […]

Abstract Plasmids serve as important tools in genetics and biotechnology labs, where they are commonly used make many copies of a particular gene. The aim of this experiment was to identify three mystery plasmids based upon their characteristics; such as size, antibiotic resistance, lacZ profile and conjugative properties. The results obtained showed that plasmid number2 […]

As stated by Sakamoto et al in 1983, the tripeptide glutathione (GSH) has a unique peptide bond that connects the carboxyl group of the glutamate side-chain with the amine group of cysteine. This is introduced in this paragraph. Glutathione, also known as GSH, serves as an antioxidant that safeguards vital cellular components from injury caused […]

Arabidopsis thaliana is an experimental plant model with various characteristics. It has a short generation time, is non-fastidious, and can reproduce through self-fertilization or cross-pollination, producing abundant seeds ranging from 10,000 to 40,000. Its growth, development, flowering, and seed production are similar to higher plants. Researchers can examine the phenotype of large populations of seedlings […]

Abstraction The subject of this research involved the happening of familial transmutation in bacteriums ( E. Coli ) . More specifically, antecedently prepared pGLO plasmid–which consisted of the cistron to be cloned–was used to transform non-pathogenic bacteriums. The pGLO plasmid contained a cistron for the Green Fluorescent Protein ( GFP ) from a bioluminescent Portuguese man-of-war […]

As stated in the headline, this will be a plan to investigate the effects of temperature on the enzyme catalase in yeast and liver. But before I go in to detail about the experiment itself, the biology behind the reaction should be discussed. Starting with what will in great part control the reaction, some knowlegde […]

Catalase is a red, crystalline enzyme that consists of a protein complex with haematin groups and catalyses the decomposition of hydrogen peroxide into water and oxygen: 2H2O2 –> 2H2O + O2Hydrogen peroxide is a powerful oxidising substance. It is formed inside cell organelles called the peroxisomes, during the breakdown of purines. Peroxisomes help to oxidise […]

Throughout this project I will be looking at the use of enzymes in industry. I will focus my thoughts onto the medical area and furthermore onto the portable medical devices. This will include looking at biosensors in great detail along with medical test strips. Enzymes are chemical catalysts; this means that they increase the rate […]

Experiencing “life on the edge”, bacteria have to respond to changes in the environment in order to survive. Facing limited resources and coupled with intense competition in almost every environment, bacteria have to accommodate any potential energy sources of nitrogen, carbon while resisting toxicity to their regulatory process and metabolism. By establishing an intra and […]

The topic of interest is the fundamental biochemical principle that explains why living things are chemically alike. Despite this similarity, there exists a wide range of diversity in the structure and function of living organisms. Macromolecules are predominantly what make up living beings, which are polymers formed from several types of simple compounds. The order […]

What amino acid(s) is/are involved in crosslink polypeptide chains. How can these crosslink be cleaved and prevented from reforming? 3) A polypeptide is subjected to the following degradation techniques results in polypeptide fragments with the indicated amino acid sequences. What is the amino acid sequence of the entire polypeptide? A) Trying digestion: 1) Glen-Met-Lays 2) […]

In an 8-minute video, the process of preparing for incomprehensibility is demonstrated. This is followed by a 20-minute scan of tissues with uncharacteristic stains near colon cancers which shows varying degrees of deficiency in three DNA repair proteins (ERIC, AMPS, and KICKS) and one mitochondrial protein (Cool). Molecular markers that indicate cellular occurrences such as […]

Venomous snakes produce and inject snake venom, a biological fluid that serves to immobilize or kill prey and function in defense. The venom can be clear, viscous, amber or straw-colored. There are two main types of snake venom namely neurotoxins which target the nervous system and hemotoxins which target the circulatory system. Some snakes however […]

Protein isolation for a western blot uses detergents and mechanical force to separate seeded cells from their container. Eukaryotic cells are attached to the surface of a flask by Catherine. In the past, we’ve separated the cells from the flask by breaking these bonds with a protease, but In order to keep the proteins Intact, […]

The endomembrane system is a system of cell organs working together for the same end. This system compartmentalizes the cell curtailing certain metabolic reactions to certain countries of the cell. Phospholipids are a critical component of the endomembrane system it is these bilayers that cover constructions like the karyon. vacuoles. the endoplasmic Reticulum ( ER […]

The plasma membrane exists in all living things for the simple ground that it serves critical maps without which the cell can non last. The plasma membrane is composed chiefly of a phospholipid bilayer which is made up of hydrophobic lipid “tails” that point inwards and hydrophilic phosphate “heads” that are positioned so that one […]