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

Illustrate the applications of gellan gum, Illustrate the Applications of G...

Illustrate the Applications of Gellan gum Gellan is a highly versatile food ingredient and has numerous applications in foods. The combination of gelatin with gellan, by compar

Family is the basic unit of society - child care, Family  is the Basic Uni...

Family  is the Basic Unit of Society   Each child within a family needs love and security to develop feelings of  trust and self esteem. Each child is a unique individual who h

Coelenterata, is cnidaria having both interacellular & extracellular digest...

is cnidaria having both interacellular & extracellular digestion?

What does radial symmetry mean, What does radial symmetry mean? What is the...

What does radial symmetry mean? What is the type of symmetry found in chordates? Which are other phyla of the animal kingdom that present species with radial symmetry? Radial

Amylase stock solution, Assume that you have 1 mL of a solution amylase (an...

Assume that you have 1 mL of a solution amylase (an enzyme) at a concentration of 15 mg protein/mL. Calculate the volume of diluting buffer that you would have to add to 1.0 mL of

What is the requirements of dental implants, Requirements of Dental implant...

Requirements of Dental implants Dental implants require special oral hygiene techniques. The particular technique chosen often depends upon the prosthesis.  A removable prosth

Nutrient cycling in tropical and temperate forests , Nutrient Cycling in Tr...

Nutrient Cycling in Tropical and Temperate Forests From this study of the nutrient cycles you must have realised the importance of the role of green plants that take up nutri

What are the benefits of cardiac rehabilitation, What are the benefits of c...

What are the benefits of cardiac rehabilitation ? The most substantial benefits include: 1 Improvement in exercise tolerance. 2 Improvement in symptoms. 3 Improvement in blood

Define complete assessment for dietary management - surgery, Define Complet...

Define Complete Assessment for Dietary Management during Surgery? A complete assessment must include: Physical examination (anthropornetric measurements such as ideal/us

Explain about periimplant probing depth, Periimplant Probing Depth In c...

Periimplant Probing Depth In contrast to natural teeth, for which the average periodontal probing depth (PD) has been reported, the physiologic depth of the periimplant sulcus

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