Question

Compare green algae and red algae

Answer 1

Green algae

• Mostly fresh water and subaerial.
• Unicellular species abundant.
• Thylakoids are stacked in groups of 2-20.
• Chlorophyll a and b type.
• Fucoxanthin is absent.
• Phycobilins absent.
• Reserve food is starch.
• Present; flagella 2 to 8 apical and equal.
• Cell wall is of cellulose

Red algae

• Mostly marine
• Unicellular species fewer.
• Chlorophyll a and d type.
• Fucoxanthin may be present.
• Phycobilins present.
• Reserve food is floridean starch
• Motile stages are absent.
• Cell wall contains cellulose and sulphated phycocolloids