Multiple Choice Questions

Which example below is a characteristic shared by diplomonads and parabasalids?
  • Both lack plastids.
  • Dinoflagellates.
  • Chlamydomonas.
  • Dinoflagellates
Which of these groups is characterised by cells that have more than one nucleus?
  • Dinoflagellates.
  • Euglenids.
  • Ciliates.
  • Diatoms.
The term mixotroph indicates that a protist __________.
  • morphological studies of the cytoskeleton.
  • several diverse groups of photosynthetic protists.
  • combines photosynthesis and heterotrophic nutrition.
  • Eukaryotes that are not plants, animals or fungi.
Apicomplexans are currently assigned to the chromalveolates because __________.
  • the apicoplast, a modified plastid, appears to be of red algal origin.
  • Both lack plastids.
  • About 30% of the world's photosynthesis is performed by protists.
  • engulfed a photosynthetic red alga in a secondary endosymbiosis event.
The term algae refers to __________.
  • several diverse groups of photosynthetic protists.
  • Pseudopodia, Cilia, Flagella, Undulating membrane.
  • combines photosynthesis and heterotrophic nutrition.
  • Eukaryotes that are not plants, animals or fungi.
Although controversial, chromalveolates are proposed as a clade whose common ancestor __________.
  • It shows all five supergroups diverging simultaneously from a common ancestor.
  • engulfed a photosynthetic red alga in a secondary endosymbiosis event.
  • About 30% of the world's photosynthesis is performed by protists.
  • the apicoplast, a modified plastid, appears to be of red algal origin.
Which of the following is not a cellular organelle possessed by a protist?
  • Chlamydomonas.
  • Sporozoite.
  • Reproduction.
  • Ciliates.
The holdfast of brown algae functions in __________.
  • Both lack plastids.
  • anchoring the algae.
  • chlorophytes.
  • Dinoflagellates
Which protist group is thought to be most closely related to animals?
  • Dinoflagellates.
  • Diatoms, Brown Algae, Forams, Ciliates.
  • Choanoflagellates.
  • Dinoflagellates
Which of the following is a structure used for locomotion in protists?
  • About 30% of the world's photosynthesis is performed by protists.
  • Sporozoite.
  • Pseudopodia, Cilia, Flagella, Undulating membrane.
  • It shows all five supergroups diverging simultaneously from a common ancestor.
Which of these groups includes parasitic unicellular organisms with a complex of organelles specialized for penetrating host cells and tissues?
  • Euglenids.
  • Diatoms.
  • Apicomplexans.
  • Dinoflagellates.
Which of the following is the best description of protists' contribution to photosynthesis?
  • Sporozoite.
  • Pseudopodia, Cilia, Flagella, Undulating membrane.
  • It shows all five supergroups diverging simultaneously from a common ancestor.
  • About 30% of the world's photosynthesis is performed by protists.
Which of the following does not take place during the process of conjugation?
  • Reproduction.
  • Sporozoite.
  • Apicomplexans.
  • Chlamydomonas.
Molecular data suggest that plastids originated as __________ engulfed by a heterotrophic eukaryote.
  • Reproduction.
  • cyanobacteria
  • Oomycetes
  • chlorophytes.
What is one way in which a cellular slime mold differs from a plasmodial slime mold?
  • A cellular slime mold is multicellular.
  • Frequently changing their surface proteins.
  • Pseudopodia, Cilia, Flagella, Undulating membrane.
  • morphological studies of the cytoskeleton.
Parasites of the genus Trypanosoma evade immune responses through what defense?
  • Eukaryotes that are not plants, animals or fungi.
  • morphological studies of the cytoskeleton.
  • Frequently changing their surface proteins.
  • A cellular slime mold is multicellular.
Which protists were once categorized as fungi due to their multinucleate filaments that resemble hyphae?
  • Euglenids.
  • Dinoflagellates.
  • Oomycetes
  • Ciliates.
Protists are best described as which of the following?
  • morphological studies of the cytoskeleton.
  • combines photosynthesis and heterotrophic nutrition.
  • Eukaryotes that are not plants, animals or fungi.
  • Frequently changing their surface proteins.
Which organisms are capable of producing a "red tide"?
  • Oomycetes
  • Dinoflagellates.
  • Dinoflagellates
  • Ciliates.
Which of these groups includes photosynthetic unicellular organisms with flagella and contractile vacuoles?
  • Ciliates.
  • Apicomplexans.
  • Euglenids.
  • Diatoms.
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Multiple Choice Questions
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