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Bio 2 > Ch 20 > Flashcards

Ch 20 Flashcards

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1
Q

Which of the following best fits into the protist’s group?
Prokaryotes
Animals
Plants
Fungi
Any eukaryote that is not a plant, animal, or fungus

A

Any eukaryote that is not a plant, animal, or fungus

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2
Q

Some protists, such as amoebas, rely on finger-like projections called ________ for capturing prey and moving.

A

pseudopods

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3
Q 
A protist that lives inside a host organism and absorbs nutrients from that living host is 
	parasitic.
	predatory.
	symbiotic.
	a decomposer.
	photosynthetic.
A

parasitic

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4
Q

The protists include photosynthetic, parasitic, and pathogenic species. True or False?

A

True

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5
Q

Protists
form a single clade.
are prokaryotic.
obtain nutrition through a variety of different methods.
develop embryos during reproduction.
carry out photosynthesis without chloroplasts.

A

obtain nutrition through a variety of different methods.

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6
Q 
Protists that absorb nutrients from dead organic matter are called
	predatory.
	parasitic.
	symbiotic.
	photosynthetic.
	decomposers.
A

decomposers.

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7
Q 
The first protist chloroplast was likely to have been a(n) 
	example of secondary endosymbiosis.
	chemosynthetic bacterium.
	symbiotic green alga.
	photosynthetic bacterium.
	virus.
A

photosynthetic bacterium.

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8
Q

The most complex group of unicellular protists is the ________.

A

ciliates

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9
Q

The ________ algae are an important source of carrageenan, which is used to thicken paints, cosmetics, and ice cream.

A

red

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10
Q 
The foundation of a marine food chain is 
	algae.
	Archaea.
	fungi.
	viruses.
	plants.
A

algae.

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11
Q 
Protists that have two nuclei are classified as 
	parabasalids.
	ciliates.
	amoebas.
	diplomonads.
	apicomplexans.
A

diplomonads.

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12
Q

Malaria is caused by a protist that is transmitted by the bite of ________.

A

mosquitoes

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13
Q 
Which protist causes a sexually transmitted disease? 
        Trichomonas
	Pfiesteria
	Trypanosoma
	Giardia
	Plasmodium
A

Trichomonas

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14
Q

The group of protistan aquatic organisms known generally as ________ produces most of the world’s oxygen.

A

phytoplankton

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15
Q 
A parasitic protist that presents a major health problem to backpackers and hikers if they drink unfiltered stream or lake water is
        Trypanosoma.
	Plasmodium.
	Giardia.
	Pfiesteria.
	Didinium.
A

Giardia.

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16
Q 
Which group is commonly referred to as the "seaweeds"? 
Ciliates
	Water molds
	Cyanobacteria
	Brown algae
	Phytoplankton
A

Brown algae

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17
Q

When a red tide occurs, huge numbers of microscopic organisms are filtered out of coastal waters by oysters and clams. This sometimes causes the shellfish to become toxic to people who eat them. The organisms that create the red tide are classified as

A

dinoflagellates.

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18
Q 
The short, hair-like structures that propel Paramecium through the water are called 
vacuoles.
	flagella.
	pseudoplasmodia.
	pseudopods.
	cilia.
A

cilia.

19
Q 
Which of the following is considered to be most closely related to plants?
Euglenids
	Brown algae
	Diatoms
	Green algae
	Slime molds
A

Green algae

20
Q

What are the main differences between prokaryotes and protists?

A

protists have organelles (contractile vacuoles)

Prokaryotes do not except for ribosomes ( granules)

21
Q

What is secondary endomymbiosis?

A

where a non-photosynthetic protists “eats” or engulfs a photosynthetic protists that contains chloroplast

22
Q

What is the importance of dinoflagelates in marine ecosystems? What can happen when they reproduce rapidly?

A

They produce most of the oxygen into the sea and are a food source. They produce red tide

23
Q

What is the major ecological role played by single-celled algae?

A

Food, shelter, and oxygen

24
Q

Which protists group consists entirely of parasitic forms?

A

Apicomplexans

25
Q

Which protist groups include seaweeds?

A

Brown Algae

26
Q

Which protist groups include species that use pseudopods?

A

The amoebozans, cellular slime molds, cercozans, foraminiferans, radiolarians,

27
Q

The main groups of protista

A

alveolates, amoebozoans, cercozans, eugleozoans, excavates, stramenopies, red algae, green algae

28
Q

Which ones can be photosynthetic

A

Euglenids, diatoms, dinoflagelles, brown algae, red algae, green algae

29
Q

Which ones are slime molds

A

amoebozoans- acellular and cellular

protists in which there is blurred colony and individuals

30
Q

Which ones have shells of silica and which one of calcium carbonate

A

Diatoms, Radiolarians

Foraminiferans, sometimes red algae

31
Q

Which ones contribute to phytoplankton

A

Dinoflagellates, Diatoms, (microscopic single celled) Green Algae

32
Q

Which ones have 2 perpendicularly arranged flagella?

A

Dinoflagellates

33
Q

Which ones cause the red tides

A

Dinoflagellates

34
Q

Which ones at times photosynthesize and at times can be heterotrophs?

A

Euglenids

35
Q

Which ones are closer related to plants?

A

Green Algae

36
Q 
Which of the following is a producer in its ecosystem because of the photosynthesis it performs?
prions
viruses
cyanobacteria
zooflagellates
sporozoans
A

cyanobacteria

37
Q 
Which of the following is associated with cyanobacteria?
plasma membrane
DNA and RNA surrounded by a protein coat
chloroplast 
DNA inside a nucleus
cell walls with cellulose
A

plasma membrane

38
Q 
Trypanosoma is a unicellular, eukaryotic blood parasite that causes African sleeping sickness. Into which of the following groups is it classified?
archaea
viruses
bacteria
plantae
protista
A

protista

39
Q 
which protists are entirely parasitic and have no means of locomotion?
cellular slime molds 
ciliates
amoebas
sporozoans
zooflagellates
A

sporozoans

40
Q 
What phytoplankton group can reproduce so prodigiously that they can cause "red tides" killing large numbers of fish because the gills are clogged?
red algae
brown algae
diatoms
dinoflagellates
A

dinoflagellates

41
Q 
which protists use flagella for locomotion?
cellular slime molds 
ciliates
euglenoids
zooflagellates
both euglenoids and zooflagellates
A

both euglenoids and zooflagellates

42
Q 
which of these is a component of phytoplankton and supports aquatic food chains via its photosynthesis?
sporozoans/apicomplexans
diatoms
brown algae 
amoebas
slime molds
A

diatoms

43
Q 
Which of the following shares a common ancestor with plants and is the most like the earliest plants?
cyanobacteria 
slime molds
green algae
amoebas
viroids
A

green algae

44
Q 
Which of the following is an important recycler of nutrients (decomposer) in its ecosystem
slime molds
sporozoans/apicomplexans
cyanobacteria
viruses
green algae
A

slime molds

Bio 2 (12 decks)

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