Chapter 16 review- Bacteria, Archaea, and Protists

Question 1

Nitrogen fixation is important to living things because

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plants & animals can't use the form of nitrogen in the air

Question 2

What group has an outer covering made essentially of glass?

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diatoms

Question 3

The different protist groups regarded as "algae"

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are not closely related

Question 4

Antibiotic resistance among Bacteria is

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a huge public health problem, widespread and increasing

Question 5

Which group is famous for containing many extremophiles?

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Archaea

Question 6

a phototroph gets its energy where?

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from light

Question 7

The organisms who do most nitrogen fixation are

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certain Bacteria

Question 8

Archaea

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may be more closely related to Eukaryotes than to Bacteria

Question 9

Single-celled eukaryotes are known as

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protists

Question 10

In addition to chromosomal DNA, bacteria often have plasmids, which are

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loops of DNA, not part of the chromosome

Question 11

Animals that digest cellulose do so

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through the action of bacteria in their digestive tracts

Question 12

Most nitrogen in the air is in which form?

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N2

Question 13

a heterotroph gets its carbon where?

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from organic compounds

Question 14

The main difference between Bacteria/Archaea and Eukaryotes is that the former

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don't have membrane-bounded nucleus or organelles

Question 15

Paramecium is which type of protozoan?

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ciliate

Question 16

What "algae" have in common is mainly that they

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are photosynthetic

Question 17

diatoms have a two-part "shell" made of

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essentially glass

Question 18

How many of the bacteria that inhabit us are believed to be how important to our health?

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many are thought to be essential to our health

Question 19

The group famous for sometimes creating toxic "red tides" is the

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Dinoflagellates

Question 20

How many species of bacteria inhabit us?

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thousands

Question 21

Bacteria

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use DNA

Question 22

Bacteria have

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a single, circular chromosome

Question 23

Protists are

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Eukaryotes

Question 24

an autotroph gets its carbon where?

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from CO2

Question 25

baby humans

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contain bacteria even before birth

Question 26

single, rounded bacteria are referred to as

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cocci

Question 27

Protists are

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mostly single-celled Eukaryotes

Question 28

Antibiotic resistance in Bacteria arises through

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mutation and natural selection

Question 29

"Kingdom" Protista deserves quotes because

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it is really more than 1 Kingdom

Question 30

Compared to eukaryotes, prokaryotes have

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more "nutritional modes"

Question 31

Diatoms have two shells like a petri dish, made of

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silica, essentially glass

Question 32

Clusters of rod-shaped bacteria are called

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staphylobacilli

Question 33

Bacteria and Archaea lack

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membrane-bound organelles

Question 34

Dinoflagellates are named for their tumbling motion, caused by

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two right-angled grooves, each with a beating flagellum

Question 35

Which describes a multicellular organism?

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there are cell types specialized for different tasks

Question 36

How many species of bacteria and Archaea are there?

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we really have little idea

Question 37

The first eukaryotes were likely most similar to

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Protists

Question 38

Green Plants (Kingdom Plantae) are believed to have evolved from

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Green Algae

Question 39

Half of all antibiotic use is for

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enhancing livestock growth rates, being put in their food

Question 40

The two most numberous groups of "algae" in the oceans are the

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Diatoms and Dinoflagellates

Question 41

"Algae" deserves quotes because it is

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a functional group, not a single taxonomic group

Question 42

About what percent of human diseases are caused by bacteria?

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50%

Question 43

Compared to Bacteria, the cells of protists are often

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structurally far more complex

Question 44

"Domain" is a classification category

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newly created in the 1970s, made necessary by the discovery of "Archaea"

Question 45

The first organisms to evolve were likely

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prokaryotes

Question 46

The first eukaryotes were

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protists

Question 47

In terms of body lengths per second, some bacteria are

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way faster than you, the same speed as you, slower than you, faster than you

Question 48

Protists are

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mainly unicellular eukaryotes

Question 49

Some "algae" we saw that were exceedingly small were

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Diatoms

Question 50

Multicellular fungi and animals are thought to have evolved from

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colonial flagellated protists

Question 51

Euglena is

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a green flagellate

Question 52

Right now is the very beginning of the "Golden Age of Microbiology"

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true

Question 53

nitrogen fixation refers to

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turning N2 from the air into nitrates or ammonia

Question 54

Genes for antibiotic resistance in Bacteria

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can often be transmitted between bacterial species, are often on plasmids, can often be transmitted among individuals

Question 55

viruses are a type of

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none of those

Question 56

Bacteria generally have

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a cell wall in addition to a plasma membrane

Question 57

a chemotroph gets its energy where?

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from some molecule

Question 58

Many bacteria are capable of movement.

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True

Question 59

Endospores

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are a very resistant "resting stage" made by some bacteria, all three are true, Can be viable even after millions of years, are one reason you need a periodic tetanus shot

Question 60

The huge seaweeds known as kelp are

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multicellular protists

Question 61

Gram-positive bacteria

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take a certain stain differently from Gram-negative bacteria

Question 62

Where do we get most of our antibiotics?

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from bacteria

Chapter 16 review- Bacteria, Archaea, and Protists

Questions 62

Chapter 16 review- Bacteria, Archaea, and Protists

Questions 62