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.
LIST OUT THE DERIVATIVES OF 3 GERMS LAYER-ectoderm, mesoderm and endoderm
Define Prevalence and Incidence for anorexia nervosa? The disorder occurs most commonly in adolescent girls and young women, but adolescent boys and young men may be affected m
Occurrence of Biotin Biotin occurs in nature very likely in all living cells, although usually in minute concentrations. In animal organs and in yeast, biotin is mainly cont
Define Basic Calculations during the practical work in Laboratory? Some basic mathematical formulas and conversion factors are given herewith to help you in your calculations d
ORGANIZATION CHART: Organization chart is one of the visual which helps any visitor to get an understanding of an organization at a glance. Meaning of Organization Chart
FUNCTION S OF POLYSACCHARIDES Chitin is a structural component of fungal cell wall and exoskeleton of insects, crustaceans and some other arthropods. Peptidoglycan o
Both global and regional systolic function are to be checked. Global measures include ejection fraction, stroke volume, end systolic volume. (For measurement of systolic function u
State the term Autopsy data - Brain patient Autopsy data are not always entirely usable for validation purposes, in that numerous changes may have taken place in the patient's
Abnormalities in the lipid profile are found in patients with diabetes mellitus. The lipid abnormalities increase the risk of heart disease in diabetics and hence should be regular
Explain about the Food Science and Technology? Food Science and Technology are so inextricably linked that usually these are treated as one field of study. While Food Science d
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