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!
Explain the Functionality of Hot Air Oven?
Hot air oven sterilizes the object by hot dry air. It kills the microorganisms by oxidizing cellular constituents. Dry Heat is less effective in killing microorganisms than moist heat. Higher temperature for a longer time period is used with dry air because it-
(i) Has less penetration power, and
(ii) Removes moisture from microorganisms and thus interferes with coagulation of microbial proteins.
Hot air oven can be used at different temperatures. Operating time depends on the temperatures used as highlighted in Table.
Table: Relation between temperature of hot air oven and the time period of sterilization
You would realize that the most commonly used temperature is 160° C for 2 hours. We are all familiar with hot air ovens. Hot air oven contains an insulated cabinet kept at constant temperature by electric heating mechanism and thermostat. Air keeps on circulating within the cabinet through a fan. For proper circulation of hot air, the shelves are perforated. An oven is used to sterilize glassware, corrodeable metal instruments, powder, oil etc. which can tolerate prolonged heat exposure but get spoiled by moist heat. However, it is not suitable for heat sensitive materials, like plastic and rubber items.
Cilia and flagella share a common structure, with a microtubular core which has a 9+2 organization with nine paired doublets of microtubules surrounding a central pair to form the
Q. Which respiratory adaptations or organs do aquatic and terrestrial arthropods respectively present? In crustaceans, typical aquatic beings, there are richly vascularized gil
Airway Management To improved ventilation, suctioning, IPPB, Ultrasonic mist therapy and postural drainage with clapping and vibrating are all employed to halt the progress o
Techniques of Plant Tissue Culture A standard tissue culture laboratory should provide facilities for washing and storage of glass ware, preparation and storage of nutrient
Define Absorption, Storage and Elimination of vitamins? Reading through this section you would realize that all fat-soluble vitamins undergo similar metabolic fate. They are a
State about the Recti and Oblique Muscles The extra-ocular muscles are mainly involved in the maintenance of postural tonicity and performance of quick contractions. These mus
CYTOCHEMISTR Y OF PROTOPLASM - It is supper mixture or mixture of mixtures . 3 4 elements present in it. 1 3 elements are universal. e.g. C, H, O, N, P, K, S,
Why Neuron A is a healthy neuron Neuron A is a healthy neuron with all the usual ion channels. When at rest with a membrane voltage of R millivolts, neuron A produces no acti
Q. What is the main risk factor for skin cancer? The major risk factor for skin cancer is solar exposition of the skin without protection against ultraviolet radiation (a poten
Explain Transport and Utilization of Vitamin A? The efficacy of the intestines to facilitate absorption and utilization of retinoid s and carotenoids depends upon the cellular
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