Biodiversity Lesson 5: Domain Eukarya, Kingdom protista

Question 1

what is included in Kingdom Protista and what are their characteristic’s?

2 charecteristics of this kingdom

Answer 1

• Eukaryotic microorganisms

common characteristics:
1. have nucleus
1. have membrane bound organelles

Question 2

what kingdom has nucleus and membrane bound organelles?

Answer 2

kingdom Protista

Question 3

what type of organisms are contained in the kingdom Protista

(on a cellular level, not type but number)

Answer 3

unicellular and can form a colony

Question 4

what domain is Kingdom Protista in?

Answer 4

Domain eukarya

Question 5

what does the endosymbiont hypothesis suggest/say?

Answer 5

suggests that the more complex eukaryotic cells arose as complexes of prokaryotes living together.

Question 6

from what did: Chloroplasts, Mitochondria, and Flagella evolved from?

(evolution of protists)

Answer 6

chloroplasts –> blue-green algae

mitochondria –> aerobic bacteria

flagella –> spirochete bacteria

Question 7

why was the kingdom Protista created?

Answer 7

to classify simple organisms that did not go anywhere else

Question 8

when would we put an organism in kingdom Protista

Answer 8

when is is excluded from plants, animals, fungi or bacteria (prokaryotes)

Question 9

what are animal-like protists? their characteristics?

Answer 9

• most are free living heterotrophs
• some are motile through false feet (pseudopods–> projection of cytoplasm)
• some are non-motile spore producing parasites

Question 10

examples of a: free living Protista (A) , motile Protista (B) , non-motile Protista (B)

(animal like protista )

Answer 10

A - paramecium, and trichomonas
B- amoeba
C- plasmodium

Question 10

what is the harmful relationship between animal-like Protista and humans?

(three reason)

Answer 10

-plasmodium causes malaria
-Trypanosoma causes African sleeping sickness
- Entamoeba causes dysentery

Question 11

what is the helpful relationship between animal-like Protista and humans?

(1 reason)

Answer 11

• tritonymph live in the digestive tracts of termites and allow them to digest cellulose

Question 12

what are plant-like protists? their characteristics?

Answer 12

-contain chloroplasts and are photosynthetic (algae)

Characteristic
-contain silicon in cell wall creating glass like quality

Question 13

what is the harmful relationship between plant-like Protista and humans?

(there are 2)

Answer 13

• populate rivers and streams where there is excessive nutrient run off and a bloom can occur, resulting in eutrophication of body water.
• -the red tide produces toxin, along with other species that gets in food sources

Question 14

what is the helpful relationship between plant-like Protista and humans?

(2 things)

Answer 14

• symbiosis: dinoflagellates can live as intercellular symbionts with coral reducing their needs for nutrients
• phytoplankton: small photosynthetic organisms in surface of water of sea are producers in many food chains

Question 15

what are phytoplankton?

(benifit of plant-like protista)

Answer 15

small photosynthetic organisms in surface of water of sea that are producers in many food chains

Question 16

what is symbiosis?

(benifit of plant-like protista)

Answer 16

when two different organisms live in close proximity of each other and provide benefits to each other.

Question 17

what organisms create 70% of earths o2

Answer 17

phytoplankton

Question 18

what are fungus-like protists? their characteristics?

Answer 18

-are heterotrophs decomposers
-they release digestive enzymes to decompose dead organic matter
-are unicellular and can get together as a colony