Amoeba, Biology

Assignment Help:

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.  


Related Discussions:- Amoeba

Define the structure of d and l isomerism, Define the Structure of D and L ...

Define the Structure of D and L isomerism? The prefix D or L are used to refer to the configuration of the carbon next to the primary alcoholic group or in other words, the con

Social basis of primitive life, Social Basis of Primitive Life: In th...

Social Basis of Primitive Life: In the previous section, we gave you a glimpse of  how the primitive human beings faced the problems of day to day existence and found some so

Describe anthracycline cardiomyopathy, Q. Describe Anthracycline Cardiomyop...

Q. Describe Anthracycline Cardiomyopathy? It is due to anticancer agent doxorubion (Adriamycine), when the cumulative dose exceeds 450 mg/m 2 in subjects with normal hearts. I

Reverse osmosis, Ordinary osmosis cannot be used to purify water. If the ap...

Ordinary osmosis cannot be used to purify water. If the applied pressure exceeds osmotic pressure then water starts moving from solution side to pure solvent side. This is reverse

Chemical reactions which are catalysed by enzymes, Give two examples of che...

Give two examples of chemical reactions which are catalysed by enzymes in the course of brewing.  In the course of brewing, enzymes in the grain catalyse the conversion of star

What is the typical vegetation of the grasslands, What is the typical veget...

What is the typical vegetation of the grasslands? Grasslands are mostly formed of herbaceous (nonwoody) vegetation: grass, bushes and small trees. Biomes - Image Diversity:

Signify asexual and how it is formed, Signify Asexual and how it is formed?...

Signify Asexual and how it is formed? Organisms which do not reproduce by recombination of genetic material contained in gametes. There is not any combination of a haploid sper

Divisions and representing species of the gymnosperms, Q. What are the majo...

Q. What are the major divisions and representing species of the gymnosperms? This group of plants can be separated into conifers (pine, sequoia, cypress), that have flowers cal

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd