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
Q. Investigation of aortic regurgitation by Serial Testing? Serial testing is indicated in asymptomatic patients with severe AR and preserved LV function since LV dysfunction m

What do you mean by Syconoid sponge. Of different sponge architectures, this is intermediate in its complexity. Spongocoel is no longer lined with choanocytes, now located in r


Which of the following variations on translation would be most disadvantageous for a cell? A) translating polypeptides directly from DNA B) using fewer kinds of tRNA C) having only

Question 1: Describe the term Intellectual Property Rights. Show the difference between Patents, industrial designs, and trademarks. Define the term Intellectual Property

Chamaephytes - Classes of Life Form The perennating buds and organs are borne on shoots close to but just above the ground. The buds receive protection from fallen leaves and


Q. Dietary Management during congestive cardiac failure? Nutritional care is a little difficult in congestive cardiac failure. This is because oedema complicates the nutritiona

Define Role of Nutrients in Controlling Gene Expression? The role of several nutrients in controlling gene expression, as mentioned earlier, is in infancy, but with advancing b

Resective therapy Is used to reduce pockets, correct negative osseous architecture and rough implant surfaces and increase the area of keratinized gingival if needed. Apical