| Subject | Phaeophyceae (brown algae) |
|---|---|
| Q1 | chlorophyll types |
| Q1 Answer | a, c, carotenoids, (xanthophylls) fucoxanthin |
| Q2 | food storage |
| Q2 Answer | mannitol and laminarin (carbohydrates) |
| Q3 | cell wall |
| Q3 Answer | cellulose + algin |
| Q4 | structure |
| Q4 Answer | holdfast (attaches algae), stipe (stalk), frond (leaflike) |
| Q5 | asexual reproduction |
| Q5 Answer | pear shaped biflagellate zoospores with 2 unequal lateral flagella |
| Q6 | sexual reproduction |
| Q6 Answer | pyriform (pear shaped) gametes, fertilisation may take place within water or oogonium |
| Q7 | examples |
| Q7 Answer | Ectocarpus, Dictyota, Laminaria, Sargassum and Fucus |
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