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!
AMOEBA
Systematic Position
Amoeba was discovered by Russel von Rosenhoff in 1755. He called it the little proteus after the mythical sea god who is believed to be capable of changing shape.
Several species of Amoeba are known ,Amoeba proteus (Gr, amoib= change ) is commonest and best known .Other common species are .Aradiosa ,A discoides and A verrucosa. The following description is largely based on A proteus.
Habit and Habitat
Amoebae inhabit fresh or marine water and moist soil. A proteus is abundant in bottom mud or surface scum of ditches , ponds, lakes streams , etc, having plenty of decaying organic matter ,Normally ,it creeps upon solid objects feeds upon algae, bacteria, etc, responds to stimuli and multiplies by mitosis.
Culture of Amoeba
Temporary cultures of amoeba can be easily prepared for laboratory study by hay infusion method , Dry and clean leaves grass wheat grains or banana peals are boiled in distilled water for about 15 minutes. The water is then filtered and allowed to stand open for 2to 3 days .This allows abundant bacterial growth in it ,Now some half rotten leaves are brought from a pond or ditch, washed ant put into the filtrate. Within a week the filtrate abounds with amoebae. A drop from the bottom of the container on to a slide shows several amoebae when observed under the microscope.
Q. What is the defense mechanism that begins to work when inflammation fails to stop an infection? If the inflammatory attack is not sufficient to halt the infectious process t
Explain about the Net Protein Ratio (NPR)? This method was introduced by Bender and Doell (1957) and is a modification of the PER method. In this method, an allowance is made f
organism that can not exist in the presence of oxygen ?
What are intraspecific and interspecific ecological interactions? Intraspecific ecological interactions are those among individuals of the same species. Interspecific ecologic
Explain the Treatment of vitamin A deficiency? All forms of vitamin A deficiency are treated with a massive oral dose of vitamin A in oil (200,000 IU), immediately after diagno
#question.name any two plants having heterotrophic mode of nutrition .
whats the difference in respiratory system in mammals,reptilia and amphibian?
Preliminary treatment of implant therapy It is important to ensure a healthy oral environment before going ahead with implant procedure. The treatment needs to be initiated in
Measurements of the level of pollution There are many factor for finding the level of pollution in the waste waters that generally find out the quantity of organic matter susp
R i n g w o r m It is also known as dermatophytosis resulting in alopecia, scab formation and ring like lesions in the affected body parts. Eti o logy: Zeop
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