North Carolina Science Grade 8

Chapter 18: Bacteria

Bacteria

1.
Which of these is a group of producer eubacteria?
A)cyanobacteria
B)archaebacteria
C)saphrophytes
D)endospores
2.
Which of these kingdoms are bacteria found in?
A)protists
B)plants
C)animals
D)archaebacteria
3.
Which is true of bacteria?
A)All bacteria are producers.
B)Most bacteria are consumers.
C)A few types of bacteria are filter feeders.
D)Bacteria are not parasites.
4.
Which organisms are usually grouped according to the extreme environment in which they live?
A)fungi
B)protists
C)archaebacteria
D)plants
5.
Rod-shaped bacteria are called __________.
A)cocci
B)spirilla
C)colonies
D)bacilli
6.
Helpful bacteria are used in the production of which food?
A)meat
B)yogurt
C)milk
D)fruit
7.
Which of these is a shape of a bacteria?
A)prism
B)cone
C)hexagonal
D)spiral
8.
Which of these is a chemical to limit the growth of bacteria?
A)cocci
B)antibiotics
C)nitrogen
D)flagella
9.
__________ bacteria convert nitrogen into a form used by plants.
A)Oxygen-depriving
B)Calcium-supplementing
C)Nitrogen-fixing
D)Potassium-dissolving
10.
What is an organism that causes disease?
A)a saprophyte
B)a protozoan
C)a pathogen
D)a mushroom
11.
__________ uses bacteria to break down pollutants into simpler, harmless compounds.
A)Regeneration
B)Chemosynthesis
C)Bioremediation
D)Mitosis
12.
Which of these foods is usually pasteurized?
A)wheat
B)bananas
C)meat
D)milk
13.
Which one is true?
A)Bacteria are vertebrates.
B)Bacteria are one-celled organisms.
C)Bacteria are eukaryotic.
D)Bacteria are multi-celled organisms.
14.
Which process do some bacteria use to reproduce?
A)fission
B)regeneration
C)cloning
D)budding
15.
Some archaebacteria thrive in __________ environments.
A)basic
B)salty
C)sandy
D)dry
16.
What do bacterial cells contain?
A)a nucleus
B)four chromosomes
C)DNA
D)mitochondria
17.
An organism that uses dead material as a source of food is called a(n) __________.
A)omnivore
B)protozoan
C)archaebacteria
D)saprophyte
18.
Some bacteria can live without oxygen. They are called __________.
A)omnivores
B)homonids
C)hermaphrodites
D)anaerobes
19.
What pigment do cyanobacteria need to make food?
A)ribosomes
B)aerobes
C)chlorophyll
D)lysosomes
20.
__________ is made from damaged particles taken from bacterial walls.
A)A saprophyte
B)Plasmids
C)Pasteurization
D)A vaccine
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