Question

Which one of the following can synthesise its food?

• A. Hydra
• B. Paramecium
• C. Monocystis
• D. Euglena

Answer 1

Answer: (D)

Euglena

Photosynthetic Protista involve mainly three phylum: Pyrrophyta, Diatoms and Euglenoids. They shows myxotrophic nutrition. Some are photoautotrophic, some are saprobic and some are holozoic (who capture and ingest their prey). Photoautotrophic members have long radiating chloroplast. Chloroplast contains chlorophyll a, chlorophyll b, beta-carotene and xanthophyll. With the help of chlorophyll and sunlight they synthesize their food.

Hydra belongs to phylum Coelentrata of animals and is heterotrophic.

Paramecium is a protozoan which again are primitive animals with no pigment for photosynthesis.

Monocystis is an endoparasite of earthworms.

Thus, the correct answer is option (D).