Algae as Microorganisms
Biology ⇒ Microorganisms and Microbiology
Algae as Microorganisms starts at 8 and continues till grade 12.
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See sample questions for grade 11
Algae are considered primary producers in aquatic ecosystems. Explain what this means.
Algae are used as bioindicators in water quality assessment. Explain why.
Describe one way in which algae are used in biotechnology.
Describe the difference between planktonic and benthic algae.
Describe the main difference between prokaryotic and eukaryotic algae.
Explain how algae contribute to the formation of petroleum deposits.
Explain the ecological role of phytoplankton in the ocean.
Explain the significance of algal symbiosis in lichens.
Which group of algae is known for causing harmful algal blooms (red tides)? (1) Chlorophyta (2) Rhodophyta (3) Phaeophyta (4) Dinoflagellates
Which of the following is a characteristic feature of Euglenoids? (1) Presence of a cell wall (2) Presence of a pellicle (3) Lack of chloroplasts (4) Multicellular body
Which of the following is a colonial alga? (1) Volvox (2) Chlamydomonas (3) Ulva (4) Fucus
Which of the following is a commercial use of algae? (1) Fertilizer (2) Food additive (3) Biofuel production (4) All of the above
Algae are classified as microorganisms because they are usually ________ and lack complex tissue differentiation.
Algae are important in aquatic ecosystems because they produce ________ through photosynthesis.
The cell wall of most green algae is primarily composed of ________.
The main reserve food material in brown algae is ________.
True or False: Algae are always beneficial to the environment.
True or False: Algae are only found in water environments.
True or False: Algae can be both autotrophic and heterotrophic.
True or False: Algae can be found in extreme environments such as hot springs and polar ice.
