Question

How come 'non-green' forms of algae are clubbed together with the green chlorophyllous algae, in the same plant kingdom division?

• A. They contain chlorophyll for photosynthesis
• B. They share similar physiology
• C. They share high structural similarity
• D. All of the above

Answer 1

The correct option is D

All of the above

Both brown and red algae contain chlorophyll a, which drives photosynthesis in them, similar to green algae. All of them, also share similar physiology, food sources and have high structural similarity. Therefore, green, red and brown algae are grouped together in the division thallophyta.