New York Science Grade 7

Chapter 21: Bacteria, Protists, and Fungi

Intermediate-Level Science Exam Practice

1
What type of organism is shown in the diagram?

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A)bacterium
B)fungus
C)plant
D)protist
2
What is the function of the cilia in the diagram?

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A)defense
B)movement
C)digestion
D)feeding
3
What is the purpose of this machine?

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A)to kill harmful bacteria in food
B)to improve the flavor of food
C)to ferment foods that contain bacteria
D)to add antibiotics to food
4
Tooth decay is caused by
A)bacteria.
B)algae.
C)fungi.
D)protists.
5
Which of the following is an example of a plantlike protist?
A)mold
B)amoebas
C)downy mildew
D)algae
6
Like plant cells, the cells of fungi contain
A)chloroplasts.
B)contractile vacuoles.
C)cell walls.
D)circular chromosomes.
7
The body of a fungus is usually a mass of threadlike tubes called
A)cilia.
B)hyphae.
C)sporangia.
D)mushrooms.
8
When a fungus and an alga live together, they form a
A)downy mildew.
B)slime mold.
C)lichen.
D)mycorrhizae.
9
How do mycorrhizae help plants?
A)They fix nitrogen.
B)They produce antibiotics.
C)They increase absorption around the roots.
D)They serve as an indicator of pollution in the soil.
10
Rod-shaped bacteria are called
A)cocci.
B)spirilla.
C)eubacteria.
D)bacilli.
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