1. Chapter 2
Protists and Fungi
Vocabulary

2. algae
Any of various plantlike protists. Diatoms and seaweed are kinds of algae.

3. diatom A single liter of ocean water may contain millions of diatoms.
A microscopic, one-celled type of algae with a glasslike cell wall.
A single liter of ocean water may contain millions of diatoms.

4. ethanol
A kind of alcohol used to make medicines, food products, and various other items. Ethanol is a flammable liquid.

5. fermentation
A chemical change in which an organism breaks down sugar to produce carbon dioxide and alcohol or lactic acid.

6. fungus/fungi (plural)
Any of a large group of organisms that feed on dead organisms or that are parasitic. A mushroom is a fungus.

7. multicellular
Made up of more than one cell. Some protists are multi-cellular.

8. plankton
Organisms, generally microscopic in size, that float or drift in the ocean. Plankton is a source of food for fish.

9. protist
Any of a large group of mostly single-celled, microscopic organisms. Amoebas and algae are protists.

10. protozoan
Protists that have traits like those of animals. Some have a method of locomotion to obtain food; however, some do not move on their own.

11. saprophyte
An organism that lives on dead or decaying material. Molds are saprophytes.

12. spore
A reproductive cell that can develop into a new organism. Ferns and mushrooms produce spores.