Polysaccharide

The function of Eukaryotic and Prokaryotic cell components by FATIMA MOHIDIN Eukaryotic Cell Eukaryotic cells are cells that contain a nucleus and have membrane bound organelles they are multicellular cells and undertake reproduction by the process cell division known as meiosis and mitosis. There are 2 types of eukaryotic cell: plant and animal cells. They contain organelles such ribosomes, smooth and rough endoplasmic reticulum, mitochondria, nucleolus, centrioles, cell membrane,…

Tropical Fruits Tropical fruit is any type of fruit produced in tree that is native to the tropics. The tropics are usually as the region and area of the globe that is between the Tropic of Cancer and Tropic of Capricorn. Tropical region has unique environmental conditions and therefore creates a habitat that is usually for diverse species of fauna and flora. Many tropical fruits are mostly used and consumed by humans, and certain fruits are widely known where its demands are high. (Site) There…

Exploring Enzymes Dmitri N. Piquero Biological Discovery I Laboratory Section I Abstract Amylase is an enzyme that speeds up the conversion rate from starch to glucose. Four test tubes were filled with a starch solution and a different concentration of amylase solution ranging from 0 μL to 1000 μL. The test tubes were then left to soak in a 37°C water bath before having 2 mL of 1 M hydrochloric acid added to a test tube of pure amylase solution. Lugol’s iodine was used to test for the…

One of the leading causes of bacterial meningitis is Neisseria meningitidis, which can be acquired globally. N. meningitidis is normal flora in the human nasopharynx, but if an individual becomes susceptible, it can lead to bacterial meningitis. Incidence of N. meningitidis is strongly influenced by age. Infants have the highest risk for meningococcal disease. Low serum bactericidal antibody levels play a large role in those that are at risk for infection. Those with compromised immune…

Biochemical tests are used to detect the presence of different kinds of organic molecules, carbohydrates, lipids, nucleic acids, and proteins. These tests include the Benedict’s Test, Iodine Test, Sudan III Stain Test, Biuret Test and many others. With these tests, the nutrients from an unknown solutions can be identified in the solution. The Benedict’s test is used for identifying reducing sugars, which are simple sugars that include monosaccharides and some disaccharides. The Benedict’s…

Disease Research Project Neisseria meningitidis (meningococcus) Dawn Braud Microbiology 2104 Spring 2017 Causative Agent: Neisseria meningitidis Disease: Meningococcus Classification of the causative agent: Neisseria meningitidis, also known as meningococcus, is a fastidious, encapsulated, aerobic gram-negative (very little or no peptidoglycan in the cell wall), diplococcus bacterium with a polysac-charide capsule. N. meningitidis is the cause of meningococcal meningitis infections that have a…

The food contains energy in variety of forms- fats, proteins and carbohydrates. A carbohydrate is a sugar. There are two kinds of carbohydrates: simple sugars (glucose, fructose) and complex sugar (polysaccharides). Fats also have two types: saturated and unsaturated fats. Saturated fats are solid at room temperature while unsaturated fats are liquid. An excess of fats in the body blocks the arteries and increases body weight. Proteins are amino acids.…

permanently using cell adhesion structures such as pili and receptors called epitopes. This encourages bacterial multiplication and provides convenient sites for adhesion. The bacteria secrete an extracellular slimy substance comprised of proteins, polysaccharides, and nucleic acids to build the protective matrix biofilm structure. The bacteria now communicate by means of quorum sensing and use inducers to regulate gene expression within the bacterium. Quorum sensing is a bacterial mechanism…

Biotechnology and probiotic GOS (Galacto-oligo-saccharides) INTRODUCTION What are Prebiotics? Prebiotics are commonly defined as non- digestible polysaccharides and oligosaccharides. These prebiotics enhance the growth of beneficial bacteria like lactic acid bacteria in intestinal tract and also exert antagonistic property against some other species like salmonella sp. or E. coli. Some scientist also defined other properties of prebiotics; which includes resistance to gastric activity,…

Table 2. Results for the antimicrobial susceptibility tests using the BSAC method Organism Microbial Resistance (mm) CFX CXM CTX CPM Control 310217 704476/2 706498 310258 CFX = Cefalexin. CXM = Cefuroxime. CTX = Cefotaxime. CPM = Cefepime. R = Resistant. S = Sensitive. Table 2 highlights resistance/sensitive of the dissimilar microorganisms to the different sorts of antibiotics. Data of table 2 demonstrates that E.coli strains produced sort of difference in resistance.…