Question

Which of the following are a group of protists?
A) Euglena, Dinoflagellates and Yeast
B) Amoeba, Paramecium, Hydra
C) Euglena, Paramecium, Mushroom
D) Amoeba, Paramecium and Dinoflagellates

Answer 1

Hint: Euglena are single celled organisms that involve photosynthesis. Yeast is classified in the kingdom fungi. Amoeba includes in the sub-division protozoa of protists. It shows phagocytosis. Hydra is an aquatic plant. Dinoflagellates are unicellular organisms and also autotrophic. Mushrooms are included in the group of fungi.

Complete answer:
Kingdom protista includes eukaryotic organisms. The study of protists is called protistology. In 1866, Ernst Haeckel found this kingdom. They are unicellular or unicellular-colonial which does not form tissues. Protists are mainly divided into three groups’ animals, plants and fungi. Protista reproduce either sexually or asexually.
Some of the organisms which are classified as protists are: Amoebas, Choanaflagellates; Ciliates; Dinoflagellates; Giardia; euglena; Plasmodium and slime molds. Paramecium is also classified as protist because of its eukaryotic nature. It is the genus of unicellular ciliated protozoa. Dinoflagellates are classified in the sub-division protophyta of the protists. They are photosynthetic protists.
Yeast (Saccharomyces cerevisiae) is classified in the kingdom fungi. It is unicellular and eukaryotic organisms.
From the above information we have found that Amoeba, Paramecium and Dinoflagellates are included in the group of protists.

So, the correct answer is option D.

Note: Yeast shows pseudo mycelial growth which is absent in protista. Yeast reproduces through budding. They have a chitinous wall none of the protesters have this type of wall. They also perform extracellular digestion. Flagella, pseudopods, or cilia help in the movement of protists. Single celled amoeba and paramecium feed on the other organisms. Euglena is classified as autotrophs.