You are viewing a sample of pond water under the microscope. The sample contains a variety of microorganisms, some moving faster than others. You spot a Paramecium that is being followed by a Didinium almost as large as itself; the Paramecium initially swims away and tries to escape, but Didinium, which moves in faster bursts, finally stops it and attaches firmly onto the side of the Paramecium and proceeds to eat it. What type of endocytosis will ensue? Write down the name of the process as your answer. Do not use abbreviations.

Question

Quizplus · Accepted Answer

Protozoa such as Didinium carry out phagocytosis as a form of feeding. This is not the case in multicellular organisms, in which few cells are able to ingest large food particles efficiently, and breakdown of food particles occurs mostly extracellularly in the digestive tract.

You Are Viewing a Sample of Pond Water Under the Microscope