|
All of the listed groups are protists. -Ciliates |
Which of the following is not a group included in the protists? |
|
Chlamydomonas |
Which of the following is not a protist genera that parasitizes humans? |
|
Both lack plastids. |
Which example below is a characteristic shared by diplomonads and parabasalids? |
|
apicomplexans |
Which of these groups includes parasitic unicellular organisms with a complex of organelles specialized for penetrating host cells and tissues? |
|
several diverse groups of photosynthetic protists |
The term algae refers to __________. |
|
anchoring the algae |
The holdfast of brown algae functions in __________. |
|
ciliates |
Which of these groups is characterized by cells that have more than one nucleus? |
|
combines photosynthesis and heterotrophic nutrition |
The term mixotroph indicates that a protist __________. |
|
Pseudopodia |
Which of the following is not a structure used for locomotion in protists? |
|
Diatoms |
Which of these groups includes unicellular organisms that, due to the structure of their cell walls, can withstand pressures equal to the pressure under each leg of a table supporting an elephant? |
|
Reproduction |
Which of the following does not take place during the process of conjugation? |
|
cyanobacteria |
Molecular data suggest that plastids originated as __________ engulfed by a heterotrophic eukaryote. |
|
Choanoflagellates |
Which protist group is thought to be most closely related to animals? |
|
Frequently changing their surface proteins |
Parasites of the genus Trypanosoma evade immune responses through what defense? |
|
chlorophytes |
Green algae are divided into two main groups, the charophytes and the __________. |
|
Phytophthora infestans |
_____ is a protist that causes late blight of potatoes and was responsible for the Irish potato famine of the 19th century. |
|
Eukaryotes that are not plants, animals, or fungi |
Protists are best described as which of the following? |
|
engulfed a photosynthetic red alga in a secondary endosymbiosis event |
Although controversial, chromalveolates are proposed as a clade whose common ancestor __________. |
|
Oomycetes |
Which protists were once categorized as fungi due to their multinucleate filaments that resemble hyphae? |
|
Sporozoite |
Which of the following is not a cellular organelle possessed by a protist? |
|
dinoflagellates |
Which of these groups includes species that produce a substance that is toxic to humans? |
|
A cellular slime mold is multicellular. |
What is one way in which a cellular slime mold differs from a plasmodial slime mold? |
|
It shows all five supergroups diverging simultaneously from a common ancestor. |
Which of the following is one of the main weaknesses of the proposed classification scheme in which all eukaryotes are divided into five supergroups? |
|
About 30% of the world’s photosynthesis is performed by protists. |
Which of the following is the best description of protists’ contribution to photosynthesis? |
|
the apicoplast, a modified plastid, appears to be of red algal origin |
Apicomplexans are currently assigned to the chromalveolates because _______. |
|
dinoflagellates |
Which organisms are capable of producing a "red tide"? |
|
All three have sacs known as alveoli just beneath their plasma membranes. |
What do a carnivorous dinoflagellate, a parasitic apicomplexan, and a ciliate have in common? |
|
euglenids |
Which of these groups includes photosynthetic unicellular organisms with flagella and contractile vacuoles? |
|
cytoskeleton |
Organisms are classified as Excavata based on ______. |
|
Many protists are more closely related to plants, animals, or fungi than they are to each other and recent evidence makes it clear that the former kingdom Protista was paraphyletic. |
Why have protists been "mixed in" with plants, animals, and fungi under the hypothesis that groups eukaryotes into five supergroups? |
Share This
Flashcard
