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Science > Chapter 7 Section 1 & 2 Test > Flashcards

Chapter 7 Section 1 & 2 Test Flashcards

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Biology 101 flashcards
1
Q

Protist that are unicellular organisms are called?

A

Diatoms

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2
Q

Where do diatoms live?

A

Freshwater and saltwater.

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3
Q

Diatoms are an important food source to?

A

Marine organisms

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4
Q

Eukaryote that can not be classified as animals, plants, and fungi.

A

Protists

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5
Q

Are protist unicellular or multicellular?

A

Unicellular but some are multicellular

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6
Q

List three categories into which scientists group Protists.

A
  1. Plant-like Protists
  2. Animal-like Protists
  3. Fungus-like Protists
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7
Q

Are animal-like Protists heterotrophs are autotrophs?

A

Heterotrophs

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8
Q

what is another name for an animal-like Protists?

A

protozoan

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9
Q

what removes excess water from an amoeba?

A

contractile vacuoles

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10
Q

how do sarcodine, such as ameoba, get food?

A

they form pseudopods and surround their prey

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11
Q

true or false: paramecia have 2 nuclei.

A

true

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12
Q

what uses pseudopods to move?

A

Amoeba

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13
Q

what uses cilia to move?

A

paramecium

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14
Q

what uses flagella to move?

A

zooflagellates

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15
Q

true or false: zooflagellates living in symbiosis ALWAYS harm the animal in which they live.

A

false

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16
Q

what are parasites that feed on the cell and body fluids of their hosts?

A

sporozoans

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17
Q

true or false: sporozoans can have more than one host.

A

true

18
Q

what are plant-like Protists most commonly called?

A

algae

19
Q

are plant-like Protists autotrophs or heterotrophs?

A

autotrophs

20
Q

are diatoms unicellular or multicellular?

A

unicellular

21
Q

what form when cytoplasm flows toward one location and the rest of the organism follows? they enable sarcodines to move.

A

pseudopods

22
Q

what happens if to much water gets in into a cell?

A

IT BURSTS!!!

23
Q

what are hairlike projection from cells that move with a wave
like motion?

A

cilia

24
Q

do paramecia use asexual or sexual reproduction?

A

asexual

25
Q

what are Protists that use long whip-like flagella to move?

A

zooflagellates

26
Q

what is a close relationship in which at least one of the species benefits?

A

symbiosis

27
Q

what is a close relationship in which both species benefit?

A

mutualism

28
Q

what is a protozoan that causes malaria?

A

plasmoduim

29
Q

give an example of an animal-like Protists.

A

zooflagellates

30
Q

unicellular, classified into 4 groups based on the way the way move and live.

A

protozoan so

31
Q

what are two characteristics of animal-like protist?

A

unicellular & heterotrophs

32
Q

what is the long whip like structure?

A

flagella

33
Q

what word means false foot?

A

pseudopods

34
Q

what causes red tides?

A

increase in nutrients

35
Q

what characteristics do the cells of colonial algae and multicellular organisms share?

A

they are specialized to do certain tasks

36
Q

how do paramecia reproduce?

A

binary fission

37
Q

what s the difference between mutualism and symbiosis?

A

mutualism: is when both cells benefit
symbiosis: when one cell benefits

38
Q

what is Eutrophication?

A

process in which nutrients and phosphorus build up on a lake or pond overtime.

39
Q

when are red ride tides dangerous to humans?

A

harmful toxins and produce toxins that shellfish or other animals eat then humans eat the shellfish

40
Q

what’s the difference between flagella and cilia?

A

flagella: long whip like structure that helps the cell move from place to place.
cilia: hairlike projections from cells that move with wavelike motion

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