A) invagination
B) import
C) drcumfluence
D) circumvallation
Correct Answer: B
Solution :
In Amoeba, the food is ingested at the point where it comes in touch with the cell surface with the help of pseudopodia. Pseudopodia engulf the food into the cytoplasm. The process of ingestion takes about two minutes. Some methods of ingestion reported in Amoeba are : Circumvallation : When the prey is active, a food cup is formed with the help of pseudopodia. Circumfluence : When the prey is inactive and the Amoeba rolls over it. Import: The food passively sinks into the body on contact. Invagination : Pseudopodia secretes a sticky and toxic fluid which adheres and kills the prey. It is then taken in by invagination. Pinocytosis : Also called cell drinking. There are pinocytosis channels at certain points through which the cell ingests the food.
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