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

Sieve tubes, What are sieve tubes suited for translocation of food? a.bord...

What are sieve tubes suited for translocation of food? a.bordered pits b.no end walls c.bordered lumen and perforated cross walls D.no protoplasm

Define spiral cleavage in brief., Define Spiral cleavage in brief. Patt...

Define Spiral cleavage in brief. Pattern of cell division in the developing embryo where products of the cell divisions shift by rotating either counterclockwise or clockwise s

#organisation of the human bodytitle.., dhow is the structure of connective...

dhow is the structure of connective tisse linked to their function

What are biological troubles, What are the biological troubles that mollusc...

What are the biological troubles that molluscs face due to their soft body? Because molluscs have a soft body they are more fragile. They also have more complexity to support t

Genetics, what about cytoplasmic sex determination

what about cytoplasmic sex determination

Explain about the derived proteins, Explain about the Derived Proteins? ...

Explain about the Derived Proteins? These are not naturally taking place proteins and are obtained from simple proteins by the action of enzymes and chemical agents, heat, mech

Strobilation - types of asexual reproduction, Strobilation - Types of Asexu...

Strobilation - Types of Asexual Reproduction Strobilation is a type of asexual reproduction in which successive segments are separated off from the body one after other. It is

Define the term ancestral characteristic, Define the term Ancestral charact...

Define the term Ancestral characteristic A character shared by all members of a taxonomic group of organisms (taxon) and used to define the unique nature of the group. The cha

Describe briefly about the type 1 diabetes, Describe Briefly about the Type...

Describe Briefly about the Type 1 Diabetes? In people with normal weight, Type1 Diabetes is not a major cause of death but it is an important contributor to morbidity and morta

Explain the energy flow of ecology, Explain the energy flow of ecology? ...

Explain the energy flow of ecology? Energy flow: As you can see, energy flow is one way in an ecosystem. Energy is not recycled. The ultimate source of energy that powers eco

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