Question

How does digestion take place in amoeba?

Answer 1

Hint: Large insoluble food molecules are broken down into small water-soluble food molecules during digestion, allowing them to be absorbed into the watery blood plasma. These smaller substances are absorbed into the bloodstream by certain organisms through the small intestine.

Complete answer:
An amoeba, also known as an amoeboid, is a type of cell or single-celled organism that can change its shape by extending and retracting pseudopods. Amoebae are found in every major lineage of eukaryotic organisms and do not belong to a single taxonomic group. Amoeboid cells can be found in fungi, algae, and animals, in addition to protozoa.
Most amoebae were previously classified as part of the class or subphylum Sarcodina, which includes single-celled organisms with pseudopods or that move by the protoplasmic flow. Molecular phylogenetic studies, however, have revealed that Sarcodina is not a monophyletic group with common ancestors. As a result, amoeboid organisms are no longer classified as a single species.
Endocytosis of phagocytosis, in which pseudopodia are formed by the flexibility of the plasma membrane, is how an amoeba envelops its food. The pseudopodia are an amoeba's temporary arm-like projection that helps it collect nutrition, change its size and shape, and act as a locomotion organ.
The process of digestion involves breaking down insoluble and large food molecules into soluble and minute molecules. The food vacuoles in amoeba are transported deeper into the cell, where the large insoluble particles are broken down to the simplest molecules with the help of digestive enzymes.

Note:
Amoeba is classified as an ammonotelic animal because it excretes nitrogenous waste as ammonia. It has no excretory organs of its own. Diffusion from the general body surface in surrounding waters excretes these waste materials. The removal of waste materials is also aided by contractile vacuoles.