Unit 8: Biodiversity, Kingdom Protista (8.4) Flashcards Preview

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Flashcards in Unit 8: Biodiversity, Kingdom Protista (8.4) Deck (25):
1

Most of these organisms are _____cellular.

uni

2

Feeds on other organisms.
Includes the Animal – like prtotists. (These are protozoa or zooplankton.)(“zoa” means “animal”)
Also includes the Fungus – like protists.

Heterotroph

3

Photosynthesizers
Includes the Plant – like protists. (These are the algae and phytoplankton.)

Photoautotroph

4

These organisms can obtain energy either way

Mixotroph

5

Most organisms are ______.

motile

6

They use _____ or ______ to move through the water or other liquid.

flagella, cilia

7

They use flagella or cilia to move through the water or other liquid.
These are not _________ structures with bacteria – it is an analogous structure, remember.

homologous

8

These (flagella/cilia) are an extension of the cytoplasm in protists so they are considered ________; They are part of
the plasma membrane in prokaryotes and are therefore not considered organelles.

organelles

9

The flagella are believed to have been a helical prokaryote that entered into a ________ relationship.

symbiotic

10

Most are ________ reproducing organisms. (Remember, this method favors variation.)

sexually

11

Some are _______. (This is a faster process but produces no variation; they are all clones.)

asexual

12

These are mostly _______ organisms. (Most are important parts of food aquatic food chains or webs.)

aquatic

13

Some organisms are symbiotic _________.

parasites

14

The Endosymbiotic Hypothesis was proposed by ______ _______ in 1960.

Lynn Margulis

15

It proposes that smaller prokaryotes entered into a symbiotic relationship with a larger prokaryote for protection. In return, the smaller prokaryote provided the ability to produce energy or motility for the larger organism. This relationship would have given the “new” organism an evolutionary advantage over the existing prokaryotes. This advantage led to the evolution of the Domain Eukarya and eventually over hundreds of millions of years to the Kingdoms Fungi, Plantae, and Animalia.

Endosymbiotic Hypothesis

16

supporting evidence for the endosymbiotic hypothesis

Mitochondria, Chloroplasts, Flagella

17

These are Bi-flagellated organisms. Most of these organisms are Mixotrophic. (They can photosynthesize and also are heterotrophic.) They have a red eye spot that helps in detecting sunlight.

Euglenozoa

18

These organisms contain small air –filled chambers called alveoli.


Alveolata

19

Most are phytoplankton.
Example - Red Tide (These are toxic to most mollusks, fish, and humans.)

Dinoflagellate (type of Alveolata)

20

Produce a yellow-brown, energy rich oil. Have a strong outer shell composed of silica. (They look like stained glass.) Important phytoplankton. (In food chains, they are major producers.)

Diatoms

21

A.K.A. Sea weed or kelp. Produce a brown, light absorbing pigment that contains Iodine

Phaeophyta

22

Most move using Pseudopodia “oozing”. (“pseudo” means “false”; “poda” means “foot”) These catch and eat other organisms, just like animals. Ex. Amoebas

Animal-like Protists (protozoa)

23

Most are free-living organisms and have no “real shape”.

Amoebas

24

These feed on decaying organisms as they are decomposers.

Fungus-like Protists (Mycetozoa)

25

These organisms perform photosynthesis, just like plants.

Plant-like protists