how does an amoeba obtain its food?

Question

tel me

Answer 1

Basically Amoeba gets food by endocytosis.
In case of the solid particles you call it phagocytosis and in case of liquid intake you call pinocytosis.
In case of the solid food, there may be foldings of the plasma membrane of various types:Formation of food cups, circumvellation, circuumfluence etc. It depends whether food particles are active or passive, small or large.

Answer 2

This very large polypodial amoeba usually lives in very clear and well-oxygenated water. It feeds on other protozoans, algae, rotifers and even other smaller amoeba. The animal is continually throwing out pseudopodia in all directions with one pseudopodium becoming dominant for a short while. When the amoeba has two or three pseudopodia probing around the tips of those that are to be retracted become a gel forcing the cytoplasm back into the main cell body and pushed into the new leading pseudopodium. New pseudopodia are being continually formed and retracted always testing the environment for a likely meal or possible danger. Sometimes while making observations of this very well designed predator I have seen certain ciliates come to a full stop when coming into contact with the cell membrane of the amoeba, it is as though they have been hit with a stun gun. The amoeba quickly seizes the opportunity and flows over the prey and forms a vacuole around the animal. Measurements done with the Ph of the food vacuoles of amoebas have shown that to start off with the contents are acidic. It is only after enzymes have been emptied into the vacuole, turning the watery solution alkaline that digestion and assimilation can proceed. I have made observations and also filmed other amoebas being consumed by the much larger Amoeba proteus, which is very strange seeing an amoeba inside another amoeba. Keeping these amoeba's can be difficult but I have managed to keep a natural culture going for nearly three weeks with just the help of standing rain water, which I use to top up the water lost by evaporation.

i figure it is for home work so feel free to use that :-)
hope ya pass

Answer 3

Amoebas eat algae, bacteria, plant cells, and microscopic protozoa and metazoa - some amoebas are parasites. They eat by surrounding tiny particles of food with pseudopods, forming a bubble-like food vacuole. The food vacuole digests the food. Wastes and excess water are transported outside the cell by contractile vacuoles. Bit of a mouthful.... LOL hope this helps.

Answer 4

when the amoeba comes in contact with the food , it forms the pseudopodia ( false foot ) , which encloses the food and takes it into the body and a food vacuole is formed. The food inside the vacuole is digested with the enzymes and the energy is utilized

Answer 5

it involved endocytosis. in endocytosis, there are 3 type of action that will transport the bulk of material into a cell.
1: phagocytosis (cellular eating) - pseudopodia engulf food particles forming a food vacuole
2: pinocytosis ( cellular drinking) - plasma membrane inviginate inward forming flask-shaped vesicles. droplets of extracellular fluid flow inside. they are then pinched off to formpinocytic vesicles.
3: receptor-mediated endocytosis - coated pits form vesicles when specific ligand molecules e.g. cholesterol molecules bind to receptors on cell surface.
action 1 is more likely to be parts of amoeba consuming its food

Answer 6

Its also known as ameba. An Ameba obtain its food by the process of phagocytosis. Its when they engulf any materials around them by endocytosis and once inside, it is broken down and absorbed. It also becomes part of the protoplasm for repair + growth by assimilation.

Answer 7

Phagocytosis

Answer 8

phagocytosis

it streams its cell around the target particle of food.

once the particle is in the pocket inside of the cell, it is duissolved by enzymes and the pocket eventually dissappears.