Exploring the World of Protists

Which of the following is a characteristic of protists?

• They are all multicellular.

• They can be unicellular or multicellular.

• They are all autotrophic.

• They are all prokaryotic.

Which type of algae is known for its red pigments?

• Green algae

• Brown algae

• Red algae

• Blue-green algae

How do protists benefit life on Earth?

• They cause diseases.

• They are primary producers in aquatic ecosystems.

• They deplete oxygen in water bodies.

• They are all harmful to humans.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following is NOT a type of algae?

• Green algae

• Brown algae

• Red algae

• Black algae

What is the main difference between protists and bacteria?

• Protists are eukaryotic, while bacteria are prokaryotic.

• Protists are prokaryotic, while bacteria are eukaryotic.

• Protists are always multicellular, while bacteria are always unicellular.

• Protists can photosynthesize, while bacteria cannot.

Which of the following is an example of a protist?

• Amoeba

• Mushroom

• Fern

• Bacterium

What pigment do green algae primarily contain?

• Chlorophyll

• Carotenoids

• Phycobilins

• Xanthophylls

Which of the following statements is true about protists?

• All protists are autotrophic.

• All protists are heterotrophic.

• Protists can be either autotrophic or heterotrophic.

• Protists are only found in terrestrial environments.

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NGSS.MS-LS2-3

What role do protists play in the carbon cycle?

• They only consume carbon dioxide.

• They only produce carbon dioxide.

• They both produce and consume carbon dioxide.

• They have no role in the carbon cycle.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which type of algae is commonly used in food products like ice cream and pudding for its thickening properties?

• Green algae

• Brown algae

• Red algae

• Blue-green algae