Chemistry Essay Examples Page 60

The body needs calcium to maintain strong bones and to carry out many important functions. Almost all calcium is stored in bones and teeth, where it supports their structure and hardness. The body also needs calcium for muscles to move and for nerves to carry messages between the brain and every body part. In addition,…

Abstraction Green fluorescent protein has natural fluorescent properties which can be used in various applications. Mutagenesis of wild type GFP gives variants that are widely used as protein fusion tags, biomarkers, for analyzing protein interactions and localization of signals. GFP variants have led to technological advancements in biological studies such as FRET. In this review,…

Heavy metals (HM) are elements that are known to be dense, usually more than 5g/cm3. They can be classified into groups. The necessary elements that play important role in metabolism of organisms and cells at low concentrations. Examples are; Nickel, Copper and Zinc. These elements become toxic at high concentrations or high doses. The elements…

Enzymes What Are Enzymes? Substances that speed up chemical reactions are called catalysts. Organic catalysts are called enzymes. Enzymes are specific for one particular reaction or group of related reactions. Many reactions cannot occur without the correct enzyme present. They are often named by adding “ase” to the name of the substrate. Example: Dehydrogenases are…

Objective In lab 3, we need to use steam distillation to extract pure Eugenol from cloves. In lab 4 part 1, we should aim for the highest quality pure crystallization of acetylsalicylic acid from aspirin. In part 2 of lab 4, our objective is to obtain a comparable pure crystallization of benzil from an impure…

One exercise we did in class was the Fat Burning Walk. It can be done daily or on the days your body needs to recover from a more intense exercise. For this work out you are walking at a pace that uses 60-70% of your maximum heart rate. First you start off at an easy…

Antibodies function as mediators of specific humoral immunity by engaging diverse molecular and cellular effector mechanisms that serve to eliminate the antigen. They are produced by B lymphocytes and plasma cells in the lymphoid organs and the bone marrow, but they perform their effector functions at sites distant from their production. Like the T cell…

Plants ; likely the most neglected being on this planet. Peoples walk past works and cut them down but nobody of all time thinks about what they do for us. what the universe would be if there was ne’er any workss or photosynthetic beings. If the universe ne’er had these organisms the universe would be…

Abstract Paper Chromatography uses a chromatogram paper as its stationary phase and the solvent as the mobile phase. Retention factor is the ratio of the distance travelled by the sample to the distance travelled by the solvent. This experiment aims to separate organic compounds, to compute Rf values and to identify unknown compounds using Rf…

Experiment #1-Density Aim: Learn how the process of distillation occurs. Observe how distillation separates alcohol from wine. Method: Distillation is based on the fact that the matter can exist in three phases – – solid, liquid and gas. As the temperature of a pure substance is increased, it passes through these phases, making a transition…