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biology protists chap 19 (finals restudy) > multiple choice > Flashcards

multiple choice Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

all protists are ____

A

eukaryotes

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2
Q

what domain does protists belongs to?

A

domain eukarya

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3
Q

how does scientists classify protists?

A

by their methods of obtaining nutrition

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4
Q

this classification of protist are HETEROTROPHS and usually INGEST bacteria, algae, etc.

A

animal-like or protozoans

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5
Q

some protists reproduce asexually by ___ while others exchange genetic material during _____.

A

mitosis;meiosis

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6
Q

advantages of protists by classifying them by their method of obtaining nutrition.

A

-it is convenient
-ignores the evolutionary relationship

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7
Q

this classification of protist engulfs their food.

A

animal-like protists

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8
Q

how does animal-like or protozoans organized?

A

based on their movement

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9
Q

protists are believed to be the first eukaryotes billions of years ago as a result of?

A

endosymbiosis

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10
Q

this classification of protists MAKE their OWN food through PHOTOSYNTHESIS.

A

plantlike protists

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11
Q

this classification of protists MAKE their OWN food through PHOTOSYNTHESIS.

A

plantlike protists

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12
Q

what is the only protist with chloroplast and only protist that perform photosynthesis?

A

algae

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13
Q

algae are the only protists with ____ and subsequently the only protists that perform _____

A

chloroplast; photosynthesis

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14
Q

this classification of protist ABSORB THEIR NUTRIENTS from OTHER organisms.

A

funguslike

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15
Q

what classification of protist does ciliophora belongs to?

A

animal-like or protozoans

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16
Q

example of phylum ciliophora?

A

paramecium or paramecia (unicellular protozoans)

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17
Q

paramecia is enclosed by a layer of membrane called?

A

pellicle

18
Q

cilia on the paramecium are used for?

A

moving and feeding

19
Q

what is the use of CONTRACTILE VACUOLES?

A

-collect the excess water from cytoplasm and expel it, along with wastes, from the cell.
-helps maintain homeostasis

20
Q

animal-like protists that use PSEUDOPODS for feeding and locomotion.

A

sarcodina

21
Q

what is a pseudopod?

A

temporary extension of cytoplasm

22
Q

the most common studied sarcodines are found in the genus?

A

Amoeba

23
Q

amoebas are enveloped in an outer cell membrane and an inner thickened cytoplasm called?

A

ectoplasm

24
Q

what does animal-like protists’ cytoplasm contains?

A

contains a nucleus, food vacuoles, and occasionally contractile vacuoles

25
Q

waste products and undigested food particles are excreted by?

A

diffusion

26
Q

animal-like protists that belong to the phylum APICOMPLEXA are known as?

A

sporozoans

27
Q

why are animal-like protists that belong to the phylum APICOMPLEXA called sporozoans?

A

they can reproduce through spores

28
Q

this animal-like protozoans that use FLAGELLA for movement.

A

zoomastigina

29
Q

at least three species of _____ from the genus Trypanosoma cause infectious diseases in humans.

A

zooflagellates

30
Q

Chagas disease is also called?

A

American sleeping sickness

31
Q

what are the characteristics of algae?

A

-contain photosynthetic pigments
-PRIMARY PIGMENT IS CHLOROPYLL
-SECONDARY PIGMENTS allows them to absorb light energy in deep water.

32
Q

what are the three characteristics to classify algae?

A

-pigment types (chloropyll, carotenoid)
-methods of food storage
-somposition of cell wall

33
Q

what are the three characteristics to classify algae?

A

-pigment types (chloropyll, carotenoid)
-methods of food storage
-somposition of cell wall

34
Q

what is phytoplankton?

A

unicellular algae that provide the base of the food web in aquatic ecosystems and produce much of the oxygen in our atmosphere.

35
Q

what phylum does diatoms belongs?

A

phylum Bacillariphyta

36
Q

what does diatoms have?

A

two silica shells with two halves. one half fits inside the other, forming a box.

37
Q

what kind of autotrophs are diatoms?

A

photosynthetic autotrophs

38
Q

what does the silicon shells of diatoms form?

A

sediment that is used as an abrasive and filtering agent.
(gives toothpaste its gritty texture.)

39
Q

what phylum are dinoflagellates belongs to?

A

phylum pyrrophata

40
Q

this plantlike protist are unicellular and have TWO FLAGELLA at right angles to one another which causes spinning.

A

dinoflagellates

biology protists chap 19 (finals restudy) (2 decks)

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