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Flashcards on Protists and Algae
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What are protists?
Single-celled eukaryotes
What are algae?
Photosynthetic organisms
What is the main difference between protists and algae?
Protists are single-celled eukaryotes, while algae can be single-celled or multicellular
Name a common example of a protist
Amoeba
Name a common example of an algae
Spirogyra
How do protists obtain nutrition?
Some are photosynthetic, some are heterotrophic, and some are both
How do algae reproduce?
Through a process called mitosis
What role do protists play in ecosystems?
They are important producers and decomposers
Can algae be harmful to humans?
Yes, some algae produce toxins that can be harmful if ingested
How do protists move?
Using structures like flagella or cilia
What is the main difference between animal-like and plant-like protists?
Animal-like protists are heterotrophic, while plant-like protists are photosynthetic
What is a harmful algal bloom?
Excessive growth of algae that can deplete oxygen and harm aquatic organisms
Can protists cause diseases in humans?
Yes, some protists can cause diseases such as malaria
What are diatoms?
Photosynthetic algae with unique glass-like cell walls
How do protists reproduce?
Through processes like binary fission or conjugation
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Test Your Knowledge
Which of the following is a protist?
Fern
Amoeba
Mushroom
Cactus
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What is the primary characteristic of algae?
Photosynthesis
Mobility
Complex tissues
Multi-cellularity
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How do protists obtain nutrition?
Through respiration
By scavenging dead organisms
Through photosynthesis, ingestion, or both
By absorbing nutrients from the environment
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Which of the following is an example of an algae?
Sponge
Earthworm
Spirogyra
Yeast
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What is the main difference between animal-like and plant-like protists?
Animal-like protists are heterotrophic, while plant-like protists are photosynthetic
Animal-like protists are multicellular, while plant-like protists are unicellular
Animal-like protists reproduce sexually, while plant-like protists reproduce asexually
Animal-like protists have complex cell structures, while plant-like protists have simple cell structures
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Why can algae be harmful to humans?
They can cause allergic reactions
They can cause skin rashes
Some algae produce toxins that can be harmful if ingested
They can deplete oxygen in water bodies
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How do protists move?
Using structures like flagella or cilia
By forming pseudopodia
Through muscular contractions
By generating gas-filled sacs
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What are harmful algal blooms?
Excessive growth of algae that can deplete oxygen and harm aquatic organisms
Algae that have sharp spines or thorns
Algae that release toxic chemicals into the environment
Algae that can glow in the dark
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Can protists cause diseases in humans?
Yes, some protists can cause diseases such as malaria
No, protists only exist in aquatic environments
Yes, but only if a person is allergic to them
No, protists are harmless to humans
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What are diatoms?
Photosynthetic algae with unique glass-like cell walls
Parasitic protists that infect animals
Harmful algae that produce red tides
Unicellular organisms that resemble fungi
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