Lab IV - BIODIVERSITY II: Protists

Question 1

Are protists motile?

Answer 1

most

Question 1

Sexual or Asexual reproduction?

Answer 1

both

Question 2

True or false: most are terrestrial

Answer 2

FALSE: Most are aquatic (terrestrial protists are found in moist environments)

Question 3

True or false: Only autotrophic?

Answer 3

FALSE: Protists may be autotrophic or heterotrophic

Question 4

Are they unicellular?

Answer 4

uni OR simple multicellular

Question 5

TRUE or FALSE: Protists are more diverse
than all other eukaryotes

Answer 5

TRUE

Question 6

Protists vary in their method of obtaining food, in how many groups do they separate?

Answer 6

3 main groups

Question 7

Name all 3 groups

Answer 7

Animal-like
Plant-like
Fungi-like

Question 8

Which group is autotrophic?

Answer 8

Plant-like

Question 9

Which one is absorptive/ingestive (heterotrophic)?

Answer 9

Fungus-like

Question 10

photoautotrophic are major components of what?

Answer 10

of phytoplankton

Question 11

what are phytoplankton

Answer 11

primary producers in marine and freshwater habitats

Question 12

Why are protists so important economically?

Answer 12

• pest control
• industrial uses
• thickening agents in food industry

Question 13

Name 3 structures for locomotion

Answer 13

• cilia
• flagella
• pseudopodia

Question 14

3 main modes of nutrition

Answer 14

• photosynthesis
• absorptive feeding
• injective feeding

Question 15

What are the 3 trophs we see/talk about

Answer 15

• photoautotrophs
• chemoheterotrophs
• mixotrophs

Question 16

What is symbioses?

Answer 16

Several protists are free-living while others form intimate interactions with other
organisms

Question 17

the symbiosis can be referred to as a (2)

Answer 17

• mutualism (both benefit)
• parasitism (one good; other bad)

Question 18

Name all 7 protists

Answer 18

Desmids
Volvox
Diatoms
Euglena
Trypanosomas
Paramecium & Stentor (Ciliates)
Amoeba

Question 19

Which protist is composed of 2 symmetrical half-calls joined by a narrow bridge called the ________

Answer 19

Desmids, the isthmus

Question 20

The cell wall of diatoms is composed of:

Answer 20

Silica

Question 21

What organelle would be used by Paramecium or an Amoeba to digest the food particle taken in?

Answer 21

lysosome

Question 22

Paramecium is considered to be part of which group?

Answer 22

BOTH plant and animal-like

Question 23

Amoeba extends their cytoplasm to form what?

Answer 23

pseudopodia

Question 24

Which one has glass like protists?

Answer 24

Diatom

Question 25

TRUE or FALSE: all protist are unicellular

Answer 25

FALSE

Question 26

WHICH organisms are considered to be phytoplankton?

Answer 26

desmids, volvox, cyanobacteria, diatoms

Question 27

What do you need to do to be considered a phytoplankton? (2)

Answer 27

- a food source for consumers - primary producers, producing oxygen

Question 28

Organisms that are fungi-like are often what?

Answer 28

decomposers

Question 29

Name 2 economic uses of diatoms.

Answer 29

- fossil fuels - diatomaceous earth