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Q 1/103
Score 0
What are microorganisms?
60
can only be seen with the use of a microscope
all of the above
small
incredibly diverse
Q 2/103
Score 0
True or false. Archaea and Bacteria include Earth’s smallest known cells and are the most abundant organisms in the world; they are ancient, having originated more than 3.5 bya
60
true
false
103 questions
Q.
What are microorganisms?
1
60 sec
Q.
True or false. Archaea and Bacteria include Earth’s smallest known cells and are the most abundant organisms in the world; they are ancient, having originated more than 3.5 bya
2
60 sec
Q.
True or false. Prokaryotes are often single celled.
3
60 sec
Q.
_____________ were Earth's first eukaryotes.
4
60 sec
Q.
Protists were Earth’s first _________; they are a diverse group that cannot be classified into the kingdoms Fungi, Plantae, or Animalia.
5
120 sec
Q.
Protists that lack chloroplasts are informally called what?
6
120 sec
Q.
Protists that have chloroplasts are informally called what?
7
120 sec
Q.
____________ are eukaryotic organisms that lack plastids and live by absorbing organic food
8
120 sec
Q.
____________ is the process in which an organism receives genetic material from another organism without being the offspring of that organism
9
120 sec
Q.
Which of the following is "NOT" a feature that Archaea share with eukaryotes ?
10
120 sec
Q.
________ help biologists understand the origin of life, life in extreme environments, and what extraterrestrial life might be like.
11
120 sec
Q.
True or false. Archaea have kingdoms and Eukarya does not have kingdoms.
12
120 sec
Q.
What phyla had a particularly close evolutionary relationship to Eukarya?
13
120 sec
Q.
True or false. Read this question carefully before answering. Archaea have certain features that enable them to grow in extreme conditions.
14
120 sec
Q.
true or false. Archaea have "ether" bonds while bacteria and eukaryotes have "ester" bonds.
15
120 sec
Q.
True or false. The "ether" bonds that archaea posess are resistant to damage by heat and other extreme conditions.
16
120 sec
Q.
true or false. Archaean membranes are built with isoprene chains and not fatty acid chains.
17
120 sec
Q.
___________ Are Photosynthetic Bacteria That Produce Oxygen and Play Other Important Ecological Roles
18
120 sec
Q.
Cyanobacteria are abundant in fresh water, oceans, wetlands, and the surfaces of arid soils. TRUE OR FALSE. Cyanobacteria are the ONLY prokaryotes to generate oxygen as a product of photosynthesis.
19
120 sec
Q.
Cyanobacteria can do which of the following?
20
120 sec
Q.
Cyanobacteria illustrate the wide range of body diversity found among bacterial phyla, including what forms?
21
120 sec
Q.
The phylum Proteobacteriadisplays great diversity in form and metabolism and is organized into 5 major classes. Which of the following is NOT a class?
22
120 sec
Q.
Related to ancestors of mitochondria. This is which class from proteobacteria?
23
120 sec
Q.
This is which class from proteobacteria? Important for the global nitrogen cycle
24
120 sec
Q.
This is which class from proteobacteria? Some species destroy methane
25
120 sec
Q.
This is which class from proteobacteria? Some species important for the global sulfur cycle.
26
120 sec
Q.
Most bacteria reproduce asexually by division of a single cell into 2 equal progeny cells, using a process called ________________
27
120 sec
Q.
Some bacteria have complex intracellular structures similar to the organelles of eukaryotes. What do they include?
28
120 sec
Q.
Bacterial cells occur in five common shapes. Which is not one of the five common shapes?
29
120 sec
Q.
A polymer called ___________ is an important component of most bacterial cell walls
30
60 sec
Q.
gram positive bacteria stain what color?
31
60 sec
Q.
gram negative bacteria stain what color?
32
60 sec
Q.
gram _____ bacteria have a relatively thick peptidoglycan layer
33
60 sec
Q.
gram _________ bacteria have a thinner peptidoglycan layer and are enclosed by a lipopolysaccharide-rich outer envelope
34
60 sec
Q.
Many bacteria exude a cost of slimy _________ (also called a capsule, glycocalyx, or extracellular polymeric substance)
35
60 sec
Q.
what is the function of the slimy mucilage that bacteria exude?
36
60 sec
Q.
What is this the definition of? are able to produce all or most of their organic compounds from inorganic sources.
37
60 sec
Q.
What is this the definition of? use light as a source of energy for the synthesis of organic compounds from CO2and H2O or from H2S.
38
60 sec
Q.
What is this the definition of? use energy obtained by chemical modifications of inorganic compounds to synthesize organic compounds; chemical modifications include nitrification and the oxidation of sulfur, iron, or hydrogen
39
120 sec
Q.
What is this the definition of? require at least one organic compound (often require more) from their environment
40
120 sec
Q.
What is this the definition of? are able to use light energy to generate ATP, but they must take in organic compounds from their environment as a source of carbon
41
120 sec
Q.
What is this the definition of? must obtain organic molecules both for energy and as a carbon source. Fungi, archaea, and many bacteria are this type.
42
120 sec
Q.
require O2 (oxygen) in order to survive. What is this?
43
120 sec
Q.
are poisoned by O2 (oxygen). What is this?
44
120 sec
Q.
do not use O2, but they are not poisoned by it either. Obtain energy by fermentation or anaerobic respiration. What is this?
45
120 sec
Q.
can use 02, via aerobic respiration, obtain energy via anaerobic fermentation, or use inorganic chemical reactions to obtain energy. What is this?
46
120 sec
Q.
What are microorganisms?
47
60 sec
Q.
True or false. Prokaryotes are often single celled.
48
60 sec
Q.
_____________ were Earth's first eukaryotes.
49
60 sec
Q.
Protists were Earth’s first _________; they are a diverse group that cannot be classified into the kingdoms Fungi, Plantae, or Animalia.
50
120 sec
Q.
_____________ were Earth's first eukaryotes.
51
60 sec
Q.
Protists that lack chloroplasts are informally called what?
52
120 sec
Q.
_____________ were Earth's first eukaryotes.
53
60 sec
Q.
Protists that have chloroplasts are informally called what?
54
120 sec
Q.
____________ are eukaryotic organisms that lack plastids and live by absorbing organic food
55
120 sec
Q.
____________ is the process in which an organism receives genetic material from another organism without being the offspring of that organism
56
120 sec
Q.
Which of the following is "NOT" a feature that Archaea share with eukaryotes ?
57
120 sec
Q.
________ help biologists understand the origin of life, life in extreme environments, and what extraterrestrial life might be like.
58
120 sec
Q.
True or false. Archaea have kingdoms and Eukarya does not have kingdoms.
59
120 sec
Q.
True or false. Read this question carefully before answering. Archaea have certain features that enable them to grow in extreme conditions.
60
120 sec
Q.
true or false. Archaea have "ether" bonds while bacteria and eukaryotes have "ester" bonds.
61
120 sec
Q.
True or false. The "ether" bonds that archaea posess are resistant to damage by heat and other extreme conditions.
62
120 sec
Q.
true or false. Archaean membranes are built with isoprene chains and not fatty acid chains.
63
120 sec
Q.
___________ Are Photosynthetic Bacteria That Produce Oxygen and Play Other Important Ecological Roles
64
120 sec
Q.
Cyanobacteria are abundant in fresh water, oceans, wetlands, and the surfaces of arid soils. TRUE OR FALSE. Cyanobacteria are the ONLY prokaryotes to generate oxygen as a product of photosynthesis.
65
120 sec
Q.
Cyanobacteria can do which of the following?
66
120 sec
Q.
Cyanobacteria illustrate the wide range of body diversity found among bacterial phyla, including what forms?
67
120 sec
Q.
The phylum Proteobacteriadisplays great diversity in form and metabolism and is organized into 5 major classes. Which of the following is NOT a class?
68
120 sec
Q.
Related to ancestors of mitochondria. This is which class from proteobacteria?
69
120 sec
Q.
This is which class from proteobacteria? Important for the global nitrogen cycle
70
120 sec
Q.
This is which class from proteobacteria? Important for the global nitrogen cycle
71
120 sec
Q.
This is which class from proteobacteria? Some species destroy methane
72
120 sec
Q.
This is which class from proteobacteria? Some species important for the global sulfur cycle.
73
120 sec
Q.
Most bacteria reproduce asexually by division of a single cell into 2 equal progeny cells, using a process called ________________
74
120 sec
Q.
Some bacteria have complex intracellular structures similar to the organelles of eukaryotes. What do they include?
75
120 sec
Q.
Bacterial cells occur in five common shapes. Which is not one of the five common shapes?
76
120 sec
Q.
A polymer called ___________ is an important component of most bacterial cell walls
77
60 sec
Q.
gram positive bacteria stain what color?
78
60 sec
Q.
gram negative bacteria stain what color?
79
60 sec
Q.
gram _____ bacteria have a relatively thick peptidoglycan layer
80
60 sec
Q.
gram _________ bacteria have a thinner peptidoglycan layer and are enclosed by a lipopolysaccharide-rich outer envelope
81
60 sec
Q.
Many bacteria exude a cost of slimy _________ (also called a capsule, glycocalyx, or extracellular polymeric substance)
82
60 sec
Q.
Many bacteria exude a cost of slimy _________ (also called a capsule, glycocalyx, or extracellular polymeric substance)
83
60 sec
Q.
what is the function of the slimy mucilage that bacteria exude?
84
60 sec
Q.
What is this the definition of? are able to produce all or most of their organic compounds from inorganic sources.
85
60 sec
Q.
What is this the definition of? use light as a source of energy for the synthesis of organic compounds from CO2and H2O or from H2S.
86
60 sec
Q.
What is this the definition of? use energy obtained by chemical modifications of inorganic compounds to synthesize organic compounds; chemical modifications include nitrification and the oxidation of sulfur, iron, or hydrogen
87
120 sec
Q.
What is this the definition of? require at least one organic compound (often require more) from their environment
88
120 sec
Q.
What is this the definition of? are able to use light energy to generate ATP, but they must take in organic compounds from their environment as a source of carbon
89
120 sec
Q.
What is this the definition of? must obtain organic molecules both for energy and as a carbon source. Fungi, archaea, and many bacteria are this type.
90
120 sec
Q.
require O2 (oxygen) in order to survive. What is this?
91
120 sec
Q.
are poisoned by O2 (oxygen). What is this?
92
120 sec
Q.
can use 02, via aerobic respiration, obtain energy via anaerobic fermentation, or use inorganic chemical reactions to obtain energy. What is this?
93
120 sec
Q.
What are microorganisms?
94
60 sec
Q.
True or false. Prokaryotes are often single celled.
95
60 sec
Q.
_____________ were Earth's first eukaryotes.
96
60 sec
Q.
What are microorganisms?
97
60 sec
Q.
can use 02, via aerobic respiration, obtain energy via anaerobic fermentation, or use inorganic chemical reactions to obtain energy. What is this?
98
120 sec
Q.
do not use O2, but they are not poisoned by it either. Obtain energy by fermentation or anaerobic respiration. What is this?
99
120 sec
Q.
are poisoned by O2 (oxygen). What is this?
100
120 sec
Q.
require O2 (oxygen) in order to survive. What is this?
101
120 sec
Q.
What is this the definition of? must obtain organic molecules both for energy and as a carbon source. Fungi, archaea, and many bacteria are this type.
102
120 sec
Q.
Protists that lack chloroplasts are informally called what?
