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.
The Accident or Incident Theory - Accident Causation Peterson when reiterating the significance of human factors added such factors as ergonomic traps, the decision to err and
Explain Transfer of Culture from One Liquid Media to another Liquid Media? 1. Inoculating loop is to be held in the right hand. It is sterilized by incineration in the inner bl
Trace the flow of blood through the systemic circuit (hepatic portal system) and the pulmonary circuit, beginning and ending in the left ventricle. You will be using named chamber
Locomotion and reproduction in echinodermata
What is the primary energy source for life on earth? The primary energy resource for life on earth is the sun. The sun plays the vital role of keeping the planet warmed and it
TYPES OF PARTHENOGENESIS - 1 . NATURAL PARTHENOGENESIS - In many animals natural parthenogenesis is common process & is a method of reproduction. It is of two typ
Conventional Endodontic Treatment Surgical Endodontic & Retrograde sealing of Immature root Apex: After cleaning and shaping of the RC and before filling , I make a surgical
Define Advantage & disadvantage of using fungi as source of protein? Advantages 1. Easy to harvest from culture medium. 2. Texture of the fungi improves the functional
Trends in Succession - Ecology Succession is an important aspect of change in ecosystems and a simple description of successional communities the beginning of the story. We ne
Q. How do sponges try to protect themselves against harm from the environment? Is that method rudimentary or efficient? Sponges can close their pores to avoid the entrance of w
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