NEET BIOLOGY

Detailed explanation-1: -Algae are classified into the following groups based on their photosynthetic pigments: Chlorophyceae are green algae that contain chlorophyll a, chlorophyll b, and zeaxanthin. Phaeophyceae : Brown algae that contain chlorophyll a, chlorophyll c, beta-carotene, and xanthophyll (fucoxanthin is dominant).

Detailed explanation-2: -Three major classes of photosynthetic pigments occur among the algae: chlorophylls, carotenoids (carotenes and xanthophylls) and phycobilins. The pigments are characteristic of certain algal groups as indicated below.

Detailed explanation-3: -Beginning in the 1830s, algae were classified into major groups based on colour-e.g., red, brown, and green. The colours are a reflection of different chloroplast pigments, such as chlorophylls, carotenoids, and phycobiliproteins.

Detailed explanation-4: -More complicated diagrams will be displayed to illustrate the structures of the three types of pigments that are present during the aging of leaves: chlorophylls, carotenoids, and anthocyanins.

Detailed explanation-5: -Hint: Algae are the chlorophyll bearing thalloid plants. Algae are classified into three classes. They are Chlorophyceae, Phaeophyceae and Rhodophyceae. They are classified into these three main classes based on certain criteria.