Porphyrin

Several lactic acid producing miroorganisms such as lactic acid bacteria, fungi , yeast and microalgae were analyzed for the fermenetation process of the lactic acid production. Since the fermentation step is the producing step of the whole it is very essential that the chosen strain is feasible, economically compeptitve and yields efficent amount of desired product which is lactic acid.There were several criteria that were considered during the elimination process for the microorganims such as the

Electrophoretic deposition (EPD) is a combination of electrophoresis and deposition techniques. It is a process where charged powder material is dispersed in a solvent before it is attracted by a direct current (DC) electric field and deposited onto a conductive substrate of opposite charge surface (Besra & Liu, 2007). There are two types of electrophoretic depositions; cathodic electrophoretic deposition and anodic electrophoretic deposition. The former occurs when positively charged particles

1. In what ways is photosynthesis the reverse of respiration? In photosynthesis, carbon dioxide and water, through the light reaction, is converted into glucose and oxygen. In cellular respiration, glucose is broken down in the presence of oxygen to produce carbon dioxide, water, and ATP. In photosynthesis, water and carbon dioxide are the reactants, and glucose and oxygen are the products. In respiration, glucose and oxygen are the reactants, and carbon dioxide and water are the products. 2.

saturation kinetics in both 3,5-di-tert-butylcatechol concentration and dioxygen pressure. The kinetic parameters have been determined using Michaelis-Menten approach. A mechanism has been suggested for the oxidation reaction. Keywords: Cobalt(II)porphyrin complex; oxidation; 3,5-di-tert-butyl- catechol; dioxygen oxygen; 3,5-di-tert-butylbenzoquinone. *Corresponding author. Tel.: +201008591157; fax: +20 403344352. E-mail address: saharelkhalfy@hotmail.com 1. Introduction

Pure water has a pH very close to 7. It contains four porphyrin heme groups that allow the enzyme to react with the hydrogen peroxide. The optimum pH for human catalase is approximately 7, and has a fairly broad maximum. The photosynthesis/respiration ratio compares the rate of photosynthesis to the rate of respiration

1. What did Joseph Priestley find in 1780? In 1780, Joseph Priestley constructed that plants could "restore air which has been injured by the burning of candles." 2. What did Jan Ingenhouse discover? Jan Ingenhouse discovered that light plays a dominant role in photosynthesis. 3. What did Jean Senebier find? Jean Senebier found that fixed air, or CO2, was captured up through the process of photosynthesis. 4. What else was necessary according to Theodore de Saussure? According to Theodore

Most people would say that there are two different versions of viruses. One version of viruses infects people's computers and completely ruins them (which personally happens to me way to often, by the way), but the other version of viruses is a lot more deadly. These viruses affect all sorts of living things and could cause them to get very sick. Viruses replicate themselves inside an organism's living cells and they then spread to other organisms. Viruses usually spread in a similar fashion to how

Chloroplast is an organelle in a plant that carries out photosynthesis. Chloroplasts are large and a mature leaf may contain 20-100. They are described as flattened spheres. New plant cells contain smaller organelles that contain proplastids that can develop into different forms of plastids. For example, amyloplasts are used to store starch, while chromoplasts create pigments for fruits and flowers. Chloroplasts contain chlorphyll which contain the green pigment observed in plants. The membranes

enzyme uroporphyrinogen III cosynthase have been reported in different families. These mutations obstruct heme synthesis to varying degrees, giving a spectrum of severity. At its worst, CEP causes appalling photomutilations from the light-activated porphyrins, including loss of facial features and fingers, scarring of the cornea and blindness. The condition may have been less rare in the past, especially in isolated pockets where inbreeding could occur such as the valleys of Transylvania--perhaps

Environmental effects on Cytoplasm Concentration Abstract Photosynthesis is the use of sunlight to produce energy by plants. Cytoplasm plays a major role in plant photosynthesis. This paper aim to understand the correlation between the concentrations of chloroplast and the amount of energy produced in photosynthesis. That is, do plants with less sunlight available to them tend to have more chloroplast present in their leaves? High concentration of chloroplast means more ATP/energy is produced by