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

Differences between budding and fission, Differences between Budding and Fi...

Differences between Budding and Fission Both budding and fission are identical in at least one way in that the young ones produced by these procedures are the result of direct

Which type of energy is used in photosynthesis transformed, Q. Into which t...

Q. Into which type of energy is the light used in photosynthesis transformed? The luminous energy used in the photosynthesis is transformed in to the chemical energy.

What are all possibilities of genotypes and phenotypes, What are all possib...

What are all possibilities of genotypes and phenotypes formed in the combination of alleles responsible for the production of factor VIII? Considering the alleles X and Xh, whe

Explain evolutionary classification, Evolutionary Classification Evolut...

Evolutionary Classification Evolutionary classification combines aspects of both phenetic and cladistic systematic. Evolutionary taxonomists attempt to show in their classifica

What is peristomium. describe, What is peristomium. Describe? The segme...

What is peristomium. Describe? The segment behind the prostomium in annelids which contains the oral opening. This segment like the prostomium isn't a true segment and has no s

Explain insect resistant crops - evolutionary, Insect resistant crops (IRC)...

Insect resistant crops (IRC) Insects are a natural selection pressure so plants resistant to certain insects could have an evolutionary advantage (in natural environments)

Define methods used in combination with pasteurization, Define methods used...

Define methods used in combination with pasteurization? Typical other methods used in combination with pasteurization include: 1.  Refrigeration as in the case of   milk

Levels of prevention and role of a nurse, LEVELS OF PREVENTION AND ROLE OF ...

LEVELS OF PREVENTION AND ROLE OF A NURSE: Caplan describes the levels of  prevention as follows:  1)   Primary Prevention  It is concerned with  reduction of  incidence

What is a monohybrid cross, A monohybrid cross: A.Determines the genetic ma...

A monohybrid cross: A.Determines the genetic makeup of an organism B.always involves homozygous alleles. C.always involves organisms that are heterozygous at all loci. D.Always inv

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