Given the different habitats in aquatic ecosystems, identify the main groups of algae based on their predominant pigmentation and structure. Algae Type Pigmentation Structure Green Algae Chlorophyll Varied forms, from unicellular to multicellular Red Algae Phycoerythrin Mostly multicellular Brown Algae Fucoxanthin Predominantly large and multicellular
Practise this CLEP Biology Exam Prep 2026 question free, then download the PDF, watch the video walkthrough, or unlock timed mock exams for the full web bank.
AGreen Algae = Fucoxanthin; Red Algae = Carotene; Brown Algae = Chlorophyll
BGreen Algae = Carotene; Red Algae = Phycoerythrin; Brown Algae = Phycocyanin
CGreen Algae = Chlorophyll; Red Algae = Phycoerythrin; Brown Algae = Fucoxanthin
DGreen Algae = Phycoerythrin; Red Algae = Fucoxanthin; Brown Algae = Chlorophyll
EGreen Algae = Phycocyanin; Red Algae = Chlorophyll; Brown Algae = Carotene
✓ Correct answer: C. Green Algae = Chlorophyll; Red Algae = Phycoerythrin; Brown Algae = FucoxanthinAnswer: Green Algae = Chlorophyll; Red Algae = Phycoerythrin; Brown Algae = Fucoxanthin Green algae primarily contain chlorophyll, which gives them their characteristic green color. They can be found in various forms, from single-celled organisms to complex multicellular structures. Red algae are predominantly multicellular, and their red pigmentation is due to phycoerythrin, which allows them to photosynthesize in deeper waters. Brown algae, like the well-known kelps, are generally large and multicellular, characterized by their brown color due to the presence of fucoxanthin.
Keep practising. Use the free CLEP Biology Exam Prep 2026 PDF, watch the YouTube walkthrough, or unlock all 10 web questions with timed mock exams.
Free practice here. Timed mocks when you are ready.
Study the CLEP Biology Exam Prep 2026 free question explanations, download the PDF, then unlock timed mock exams on the web when you want exam-day practice.