Catalase

My professor had suggested that instead of me continuing on ahead doing the catalase test she had recommended that I do a mannitol salt agar test or a Blood agar test for my final test, which would help determine between Streptococcus pneumoniae, Staphylococcus epidermidis. I decided to go along with the mannitol salt agar method…

According to the cell theory, the cell is the smallest form of life but there are many parts of a cell which allow the cell to do the job it is assigned correctly. An example of a cell would be the animal cell, which is a eukaryotic cell or a cell that contains a plasma membrane. Inside the membrane there are parts of the cell called the organelles. (Animal Cell Structure, 2005) Organelles inside the cell have specific jobs to perform for the cell, organelles include the ribosomes, vacuoles,…

RESULTS Phytic Acid The concentration of phytic acid was determined spectrophotometrically in three tested plant materials of Gishta as shown in table 2. The concentrations of phytic acid were obtained from 5 g dried leafy material. All the leaf samples contained phytic acid (detection limit 0.025 mg/ml) in this study. This may have been due to the fact that there was a limitation in terms of the detection concentration since concentrations less than mg was not tested. Seed extracts was found…

Oral Microbiome 10: Reflection 3 One a daily basis the human mouth can come in contact with many different materials and organisms. “The human mouth is home to billions of individual microorganisms, including viruses, protozoa, fungi, archaea, and bacteria” (University of Minnesota Department of Biology Teaching and Learning, 2016, p. 21). In specific, during this lab we are looking at Streptococcus mutans (S. mutans) and Lactobacilli. In studies, it has been shown that yogurt has helped…

There are several mechanism in which lead (Pb 2+) leads to an increase in free radicals and decrease in antioxidant enzymes. Lead can bind and inhibit the antioxidant enzymes superoxide dismutase (SOD), catalase, glutathione (GSH) peroxidase and glutathione reductase. The inhibition capability of lead is manifested in the capacity of lead to bind thiol groups of protein and non-protein biomolecules. By binding thiol groups of the antioxidant enzymes, lead…

The Indian subcontinent has served as a major corridor for the genetic diversity of its inhabitants. Modern-day human population dispersal routes is punctuated with delineating migrations that eventually led anatomically modern humans (AMH) to spread over most parts of the world within the past 100,000 years (Cavalli- Sforza, Menozzi and Piazza 1994; Lahr and Foley 1994). Migration waves are influenced by landscape traversed and thus, natural inter continental passageways acting as corridors…

develop a capsule and are gram-negative. They have an outer cell membrane and have lipopolysaccharides in the cell wall, as well as fimbriae. Neisseria are aerobic or microaerophilic and have an oxidative form of metabolism. They also produce catalase and various enzymes for fermenting various carbohydrates such as cytochrome…

Metabolism Metabolism is the sum total of all the chemical reactions in the human body. Metabolism is as physical and chemical changes that take place in a human body that provide acceptable energy for life processes and the synthesis of new materials. Metabolism is like a balance between reactions. On this balance there is two sides. Breaking down and building up. Breaking down is known Catabolism. Catabolism is simply breaking down molecules for energy. The buildup part of metabolism is known…

Isolation and Antibiotic Resistance Testing of Delftia acidovorans from Organic Lettuce Pa Kou Thor Introduction Organic foods continue to be a health choice trend for many United States Americans as they are seen as the healthiest, natural and raw choice of food. However, there has been a growing concern of having antibiotic resistance bacteria existing on fresh organic produce. This combats the long-term thought that organic food, being free of chemicals and antibiotics, would not have…

General Introduction Dietary lipids: Dietary lipids consist of a broad group of compounds that are soluble in organic solvents and insoluble in water. Their density is lower than water and consistency varies from liquids to solids at normal room temperature, depending on their structure and function. They are also referred as ‘Oils’ which are liquid and ‘fats’ which are solid at room temperature. Lipids are the important constituents of diet due to their higher energy value. One gram of lipid…