Concept Quiz: 20.5 Fungus-like Protists

which of the following groups includes only fungus-like protists?

• cellular slime molds, brown algae, water molds
• cellular slime molds, acellular slime molds, water molds
• cellular slime molds, acellular slime molds, protozoans
• cellular slime molds, fungi, water molds

The majority of fungus-like protists get nutrients by

• photosynthesis
• living as an animal parasite
• absorbing them from dead or decaying matter
• none of the above

Which type of protist is likely to be found in a damp, nutrient-rich environment?

• a single-celled alga
• an animal-like protist
• a fungus-like protist
• all of the above

The fungus-like protists that thrive on dead or decaying organic matter in water and are plant parasites on land are

• water molds
• acellular slime molds
• cellular slime molds
• true fungi

When the amoeba-like cells of acellular slime molds fuse, they form structures with many nuclei called

• plasmodia
• zoosporangia
• spores
• filaments

In oomycetes, sexual reproduction takes place in the

• migrating colony
• sporangium
• antheridium and oogonium
• zoosporangium

What structure of an acellular slime mold is analogous to the colony of cellular slime molds?

• sporangium
• germinating spore
• zygote
• plasmodium

Protists that break down organic material include the

• fungus-like protists
• animal-like protists
• plant-like protists
• none of the above

The work of fungus-like protists and other decomposers is important in improving the quality of

• salt water
• fresh water
• top soil
• potato crops

What kinds of weather conditions might cause a farmer to worry about infection by Phytophthora infestans (a water mold)?

• warm and dry
• cool and dry
• warm and wet
• cool and wet