Amoeba, Biology

Place a slide of Amoeba (common species is A. proteus) under tlie lnicroscope and focus it under low power (5x x 5x), and observe it carefully. Amoeba looks like an irregular colourless drop of gelatinous protoplasm.

i) Tlie body is covered by a thin elastic, semi-permeable membrane called 91 plasmalemma

ii) Under tlie plasmalemma, tlie protoplasm is clearly distinguished into an outer clear ectoplasm and an inner granular fluid-like endoplasm.

iii) Try to identify the anterior and the posterior ends of Amoeba. Tlie anterior elid is cliaracterised by a thick layer of ectoplasm (tlie hyaline cap), while the posterior end is modified in tlie form of a tail like region the uroid (The anterior end of amoeba is the one in which direction a pseudopodium is given out for progression).

iv) You will see some blunt, finger-like projections. These are tlie pseudopodia and are tlie extensions of the protoplasm. Pseudopodia help tlie Amoeba to move in tlie medium and also in capturing food.

Posted Date: 4/4/2013 1:14:53 AM | Location : United States







Related Discussions:- Amoeba, Assignment Help, Ask Question on Amoeba, Get Answer, Expert's Help, Amoeba Discussions

Write discussion on Amoeba
Your posts are moderated
Related Questions
Functions of Citric Acid Cycle The citric acid cycle is an amphibolic pathway  i.e.  it  is involved in both anabolic and catabolic processes

what are some adaptations of flatworms

Echocardiography is a very important tool in diagnosis of cardiovascular diseases and is used  virtually in all categories of cardiovascular diseases. There are certain areas where

Q. Can you explain Deoxynivalenol Mycotoxicosis? During 1987, an outbreak estimated to have affected over 50,000 people in the State of Jammu and Kashmir, was traced to the c

Ask questiRed-green color blindness is an X-linked recessive disorder. If Allison is heterozygous (a carrier), and her husband, Michael, is NOT colorblind. What is the chance that

Define reagent required and methodology for picric acid test? Reagents  - Sugar solutions of glucose, fructose, galactose, lactose, maltose, sucrose and starch. - Saturat

What is Oral Hygiene  An index can be used to evaluate the oral hygiene level in the patient e.g. Oral hygiene Index (Green and vermilion) or Plaque index (Silness and Loe). An

Hydrogen ( H) has 1 electron, carbond ( c) has 6 electrons ; oxygen ( O) has electrons, Nitrogen ( n) HAS 7 electrons. Use the octet rule to determine which of the following is mos

Explain the Nonpolar Molecular Attractions in basic chemistry? Nonpolar Molecular Attractions :  Van der Waals forces and hydrophobic interactions are weak (not as strong

Briefly discuss the Salmonella food infection. • Salmonella food infection is caused by Salmonella gastroenteritis. Transmitted by faecal contamination of foods. In