Multicellular and Unicellular Organisms

Front

What is a unicellular organism?

Back

An organism that consists of a single cell, such as bacteria or amoeba.

Front

What is a multicellular organism?

Back

An organism that is made up of multiple cells, such as humans, trees, and animals.

Front

What is photosynthesis?

Back

The process by which green plants and some unicellular organisms, like Euglena, convert light energy into chemical energy (food) using sunlight.

Front

What is a producer in an ecosystem?

Back

An organism that produces its own food, typically through photosynthesis, and serves as a food source for other organisms.

Front

What is a flagellum?

Back

A long, whip-like structure that helps some unicellular organisms, like Euglena, to move.

Front

What are cilia?

Back

Short, hair-like structures on the surface of some cells, like Paramecium, that help in movement and feeding.

Front

What is a pseudopod?

Back

A temporary, foot-like extension of a cell, used by some unicellular organisms like Amoeba for movement and feeding.

Front

What are prokaryotes?

Back

Single-celled organisms that lack a nucleus, such as bacteria.

Front

What are eukaryotes?

Back

Organisms whose cells contain a nucleus and other organelles, including protists, plants, animals, and fungi.

Front

What is a protist?

Back

A diverse group of eukaryotic microorganisms, which can be unicellular or multicellular, such as algae and amoebas.