Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. Describe the Morphological Characteristics?
One of the first steps in the identification of bacteria in food is microscopic examination to ascertain the shape, size, aggregation, structure and staining reactions of the bacteria present. The following characteristics may be of special significance:
Encapsulation: The presence of capsules or slime may account for sliminess or ropiness of a food. Most capsules are polysaccharides of dextrin; dextran or levan and they serve as a source of reserve nutrients and increase the resistance of bacteria under adverse conditions.
Formation of Endospores: Bacteria of genera Bacillus, Clostridium, Sporosarcina etc have the ability to form endospores. Endospores are formed at an intracellular site and are resistant to heat, ultraviolet light and desiccation. Lysis of the vegetative cell releases the free endospore, which may remain dormant with no detectable metabolism for years. Sporulation usually appears in the late logarithmic phase of growth, possibly because of nutrient depletion or product accumulation. The acquisition of heat resistance is closely related to the formation of dipicolinic acid and the Ca2+ uptake. Germination is favoured by conditions that are favourable for growth.
Formation of Cell Aggregates: It is characteristic of some bacteria to form long chains or of others to clump under certain conditions. It is more difficult to kill all bacteria in intertwined chains or sizable clumps than to destroy separate cells.
It is important to recognise underlying causes and precipitating factors of heart failure for its appropriate management. That would also help in prevention and treatment of heart
Describe steps of Indications definitive Surgical Treatment? Indications for Definitive Surgical Treatment : Surgery is indicated in all acute proximal dissections. Ind
Define Nutritional Requirements in Cold and Polar Environment? Energy requirements are the major consideration for providing nutritional support in a cold environment. Energy e
Explain the Heat Fixation Method? This is the usual method. Here, bacteria is fixed by gentle heating of air-dried bacterial film, which results in coagulation of bacterial pro
Define the Miscellaneous Applications of Sugar? Sugars are used in 1. Custards, 2. puddings, 3. pie fillings and meringues Depending on the sugar to perform vital c
Which of the following statements is true? Answer Viruses are distinct from cells by the absence of a lipid membrane around them. Viruses are parasites that require the cell's meta
#question.endocrine organ in crustaceans
Describe Chemical changes in fruits and vegetables The detailed chemical changes that occur when fruits and vegetables are boiled in water or steamed, canned, dried or frozen,
During a fever in a human, A. shivering can happen when the actual body temperature is higher than the set point for body temperature during the fever. B. the control system
Mass transportation is the access or the exiting of substances in or from the cell engulfed by portions of membrane. The fusion of internal substance-having membranous vesicles wit
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd