Enzymes are biocatalysts produced by living cells to bring about specific biochemical reactions generally forming parts of the metabolic processes of the cells. Enzymes are highly specific in their action on substrates and often many different enzymes are required to bring about, by concerted action, the sequence of metabolic reactions performed by the living cell. All enzymes which have been purified are protein in nature, […]
Petroleum engineering is an engineering discipline concerned with the activities related to the production of hydrocarbons which can be either crude oil or natural gas and there is subsurface activities that presume to fall within the upstream sector of oil and gas industry which are activities of finding and producing hydrocarbons(refining and distribution to a marked are referred to as the downstream sector)explored by earth […]
King et al. (1981) determined that the longevity of various citrus seeds improved as the storage temperature and moisture contents of seeds were decreased. The lemon, lime and sour orange dried up to 5 % moisture contents and stored at -20 °C suffered no significant decline in viability within the storage period of seven months for lime, lemon and sour orange respectively. Nayer (1981) examined […]
Abstract: Present particular task, its relevance for antibody purification, key findings. The main considerations important to the process are purity, cost, speed of process development, process throughput and yield. 1.0. Introduction: motivation, brief summary linking the sections together. The current surge in monoclonal antibodies in the biopharmaceutical industry has sparked the need for highly efficient purification process development. In the last two decades numerous advances […]
IMPLANTATION The life journey of a conceptus consists of many stages right from the point of conception to the point of birth which is one of nature’s wonders. However, an essential stage in this journey is the process of implantation. Implantation is generally defined as an event in which an embryo becomes progressively attached to the wall of the uterus during early pregnancy. This process […]
Infectious diseases are caused by the transmission of pathogens, which are microorganisms such as bacteria and viruses. Pathogens can be transmitted by direct contact – horizontal and vertical transmission – and by indirect contact – vehicle-borne transmission and vector-borne transmission. Pathogens are microorganisms that cause infectious disease. Bacteria and viruses are the main pathogens. Bacteria Salmonella bacterium cell Bacteria come in many shapes and sizes, […]
Introduction The heart is an efficient machine that supplies the body with oxygenated blood and recycles unoxygenated blood (Weedman, 2009). Unoxygenated blood comes into the heart, is pumped to the lungs, oxygenated, and then returned to the heart to be pumped to the rest of the body (Weedman, 2009). Blood pressure (BP) can be found by measuring systolic over diastolic pressure. Systolic pressure is the […]
Schild plot: Schild plot is defined as pharmacological method of receptor classification. By using schild plot dose-effect curve for an agonist is determined in the presence of various concentrations of a competitive antagonist for its receptor in the presence of agonist i.e. equilibrium dissociation constant is calculated. The experiment is carried out for series of dose ratios for a given effect. For example the ratio […]
Aim: To observe the stages of the cell cycle in living tissue, generally and specifically in the meristematic cells of the root of garlic and hence consider the duration of the stages of mitosis in relation to the whole cell cycle. Introduction: The cell cycle, or cell-division cycle, is the series of events that takes place in a cell leading to its division and duplication (replication). In cells without […]
Amylase is an enzyme found in the germinating seeds. Imbibition process causes the release of growth plant (gibberelin) which stimulates the synthesis of amylase. Amylase activity is affected by many factors such as temperature, pH, enzyme concentration, substrate concentration, and the presence of any inhibitors or activators. [1] Amylase enzyme in the green bean seeds works best at specific range of temperature. The cotyledons store food for […]
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