Protists

Question 1

Which of the following characteristics is true of all members of the Kingdom Protista?a) all are unicellular b) all are heterotrophic c) all are autotrophic
d) all are eukaryotic e) a & d above

Answer 1

d) all are eukatyotic

Question 2

• All protozoans share which of the following set of characteristics?
  a) prokaryotic, heterotrophic, unicellular
  b) prokaryotic, autotrophic, unicellular
  c) eukaryotic, heterotrophic, unicellular
  d) eukaryotic, autotrophic, unicellular
  e) eukaryotic, autotrophic, multicellular

Answer 2

c) eukaryotic, heterotrophic, unicellular

Question 3

Giardia belongs to which of the following taxonomic groups?

a) Archaea b) Flagellate protozoans c) Ciliate Protozoans
d) Slime molds e) Unicellular algae

Answer 3

d) Slime Molds

Question 4

Plasmodium, the blood parasite that causes malaria, belongs to which of the following?

a) Bacteria b) Flagellate protozoans c) Ciliate Protozoans
d) Slime molds e) Apicomplexans

Answer 4

e) Apicomplexians

Question 5

Which of the following is a flagellate protozoan which is also a parasite of vertebrate bloodstreams and can change the molecular makeup of its cell coat so that hosts cannot develop immunity to it?
a) Giardia b) Plasmodium c) Trypanosoma d) Amoeba e) Paramecium

Answer 5

c) Trypanosoma

Question 6

Which of the following is the closest estimate of how many people die each year from malaria?
a) 10,000 b) 100,000 c) 500,000 d) 1 million e) 2 million

Answer 6

d) 1 Million

Question 7

Which of the following groups contains individuals that are decomposers (break down dead organic material), with filamentous bodies that are comprised of a single cell that contains many nuclei?

a) Archaea b) Flagellate protozoans c) Ciliate Protozoans
d) Slime molds e) Unicellular algae

Answer 7

b) Flagellate protozoans

Question 8

Toxic red tides come about due to population explosions in warm coastal waters among members of which of the following groups?

a) Dinoflagellates b) Flagellate protozoans c) Ciliate Protozoans
d) Diatoms e) Apicomplexans

Answer 8

a) Dinoflaggellates

Question 9

Which of the following represent a difference between flagellate protozoans and dinoflagellates?

a) Dinoflagellates are heterotrophic
b) Dinoflagellates have cell walls (plates) comprised of cellulose
c) Flagellate protozoans are often multicellular
d) Flagellate protozoans are strictly parasitic

Answer 9

b) Dinoflagellates have cell walls (plates) comprised of cellulose.

Question 10

• Which of the following have cell walls comprised of silica and are used as filters, abrasives, and insecticides?
  a) Dinoflagellates b) Flagellate protozoans c) Ciliate Protozoans
  d) Diatoms e) Sea weeds

Answer 10

d) Diatoms

Question 11

Which of the following groups has been a traditional source of many essential vitamins and various important trace elements for many coastal dwelling people?

a) Dinoflagellates b) Flagellate protozoans c) Ciliate Protozoans
d) Diatoms e) Sea weeds

Answer 11

e) Seaweeds

Question 12

Unicellular algae and seaweeds share which of the following groups of characteristics?

a) prokaryotic, heterotrophic, free-living
b) prokaryotic, autotrophic, parasitic
c) eukaryotic, heterotrophic, parasitic
d) eukaryotic, autotrophic, free-living
e) eukaryotic, autotrophic, parasitic

Answer 12

d) eukaryotic, autotrophic, free-living

Question 13

Which of the following best estimates the time from when the first fossils of multicellular eukaryotes (algae) are known?

a) 3.6 billion years ago b) 1.2 billion years ago c) 570 million years ago
d) 430 million years ago e) 250 million years ago

Answer 13

b) 1.2 billion years ago.

Question 14

Which of the following are autotrophic, live close to the coast, and have many commercial uses including stabilizers for ice cream and other dairy products?

a) dinoflagellates b) diatoms c) protozoans d) unicellular algae
e) seaweeds

Answer 14

e) seaweeds