20 Questions
Which structure collects extra water from the cytoplasm and then expels it from the cell?
Contractile vacuole
What is the characteristic feature of Zooflagellates that helps them move?
Flagella
Which type of protists are non-motile and pass from one host to another, often through ticks, mosquitoes, or other animals to humans?
Sporozoans
What is the role of symbiosis in the context of biology?
A close relationship between two organisms in which at least one of the organisms benefits.
Which characteristic distinguishes plant-like protists (algae) from other groups of protists?
Autotrophs: make their own food from simple materials using light energy (photosynthesis).
Which of the following is a general characteristic of protists?
Movement with cilia, pseudopodia, or flagellum
How are plant-like protists classified based on their nutrition?
Autotrophic (photosynthesis)
What is the primary method of reproduction in protists?
Meiosis and cytokinesis
What are animal-like protists called?
Protozoans
Which of the following diseases can be caused by protists?
Malaria
Protists with cilia, pseudopodia, or flagellum are all classified as animal-like protists.
False
All protists lack cell walls.
True
All protists are multicellular organisms.
False
Protists that cause diseases such as Malaria and Dysentery are exclusively autotrophic.
False
All protists found mainly in water are classified as plant-like protists.
False
Sporozoans are primarily parasites and are capable of moving from one host to another.
True
All algae are unicellular and unable to make their own food through photosynthesis.
False
Ciliates use flagella for movement and feeding purposes.
False
Zooflagellates are exclusively free swimming and do not have any parasitic members.
False
Plasmodium, the genus responsible for malaria, has a complex reproductive cycle involving both a sexual phase and an asexual phase inside two different organisms.
True
This quiz covers the general characteristics of protists, focusing on their classification as eukaryotes that cannot be classified as plants, animals, or fungi, their movement mechanisms, presence of nucleus and membrane-bound organelles, and their role in causing diseases.
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