3.3.36 Flashcards

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1
Q

How many major types of nutrition are found among protists?

A

3

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2
Q

Each division corresponds to what?

A

the 3 major groups of protists

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3
Q

Define heterotrophs

A

organisms that obtain food from the environment

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4
Q

What does the 1st type of nutrition involve?

A

It involves obtaining food actively by phagocytosis.

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5
Q

What is phagocytosis equivalent to?

A

‘eating’ or the ingestion of food by larger multicellular organisms

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6
Q

Where is this 1st nutrition found?

A

It’s found in protozoa

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7
Q

What do protozoa use to eat their food?

A

Some have mouth-like structures and others use pseudopodia to engulf prey

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8
Q

What is a typical food item for protozoa?

A

bacteria

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9
Q

Protists are a mixed group of eukaryotic organisms that are fungi, plants, or animals. True or False?

A

False. They are fungi-LIKE, plant-LIKE, animal-LIKE. They aren’t those things, they are just very much like them so don’t forget the LIKE!

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10
Q

How do algae get food?

A

They make it through photosynthesis

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11
Q

Are algae, heterotrophs, autotrophs, chemoautotrophs, or photoautotrophs?

A

Algae are photoautotrophs

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12
Q

Do algae make their own food?

A

Yes

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13
Q

What enables algae to make food?

A

chloroplasts

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14
Q

What protist category makes up plankton, seaweeds, and algae?

A

algae

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15
Q

All algae are green. True or False? Why or why not?

A

False. All algae have chloroplasts but they aren’t all green. Many have other pigments as well such as yellow, brown, or red.

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16
Q

what does photo mean?

A

light

17
Q

How do the few protists that live in extreme environments get food?

A

They make their own by using the energy obtained from chemical reactions (often ones involving sulfur)

18
Q

What is the nutrition called of protists living in extreme environments?

A

chemosynthesis

19
Q

Organisms that can make food via chemosynthesis are called what?

A

chemoautotrophs

20
Q

What are some examples of extreme environments where chemoautotrophs live?

A

deep sea vents w/ little to no light, little oxygen, and very high or low temperatures

21
Q

Some protists _____ their nutrients.

A

absorb

22
Q

Which type of protists are the protists that absorb their nutrients?

A

the fungus-like bacteria, or the slime-molds

23
Q

What type of protists are often decomposers that live in dead-like environments that require them to break down the food they need.

A

fungi-like protists

24
Q

Fungi-like protists live in what type of environments?

A

Dead-like environments

25
Q

Organisms that absorb food are considered ______trophs? Why?

A

heterotrophs, since the food comes from the environment

26
Q

How many major types of locomotion are found among protists?

A

3

27
Q

What are they 3 types of locomotion found in protists?

A

cilia, flagella, and pseudopodia

28
Q

What are cilia?

A

hair-like projections around the outside of the cell that beat in synchronized motion.

29
Q

What are flagella?

A

longer appendages, resembling tails, which move like whips to propel unicellular organisms through liquid media

30
Q

What specific protist uses pseudopodia? And for what environment?

A

amoebas (protozoa), to move through their aquatic environment.

31
Q

What specific form of protist is immobile

A

parasitic forms of protozoa

32
Q

immobile, that is, within the group _____

A

Apicomplexa